Electronic Products and Technology March/April 2012 by Annex Business Media

SWITCHES & CIRCUIT PROTECTION

electronic products and technology - MARCH-APRIL 2012 electronic products and technology

AN EP&T SPECIAL REPORT PAGE 22

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ENVIRONMENTAL DESIGN Page 20 TE CIRCUIT PROTECTION

INDUSTRIAL AUTOMATION Page 25 OMEGA

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e d i t o r i a l electronic products andtechnology technology electronic products and Volume 34 Number 2

March-April 2012

Stephen Law Editor 416.510.5208 slaw@ept.ca

Sohail Kamal

West Coast Correspondent

Joanna Malivoire

Peter Loney

Account Manager Direct: 866.868.7089 jmalivoire@ept.ca

Publisher 416.510.5207 pdloney@ept.ca

Thailand on rebound from flood devastation Representing the epicenter for global supply of key electronics components - Asia has been the bullseye of some bad fortune over the past year. Following closely on the heels of a tragic earthquake/tsunami off the coast of Japan a year ago, Thailand suffered some its worst flooding in 70 years this past Fall. This January I was an invited participant of a media junket arranged by the Thailand Board of Investment to tour these flood devastated areas - mostly in and around Bangkok. The floods killed more than 700 people and inundated two-thirds of Thailand and put a significant dent in exports already hurt by weaker global demand. As a result, Southeast Asia’s second-largest economy contracted more than financial experts anticipated. Disrupted output by manufacturers such as solid state drive maker Western Digital Corp., has certainly put pressure on government policy makers to aid post-flood growth. Economists say that the Thai government’s reconstruction measures, along with private sector spending and private investment in machinery replacement should support a V-shaped recovery (meaning a sharp but brief period of economic decline) in domestic demand, according to the National Economic and Social Development Board. The country’s consumer confidence index dropped sharply to the lowest level in 10 years after the October floods. Consumer confidence is expected to recover rapidly in the first half of this year, when employment conditions return to normal. This will be partly driven by government measures such as compensation for flood victims, minimum-wage

hikes, and an increase in civil servant salaries. Most of the manufacturers in flood-affected industrial estates have notified the government that they will re-employ their workers. On the supply side, manufacturing production - especially of autos/ auto parts, computer parts, electronics and electrical appliances - is expected to rebound strongly in the first half this year as manufacturers catch up with pending export orders and replenish inventories destroyed by floodwaters. From a first-hand perspective, I would definitely suggest that Thailand is open for businesses and the world should be confident of the country’s future. Thailand’s advantages include its culture, people, geography and that it operates in a global economy, especially as an exporting nation. Thailand also aims to maintain strong ties with Asean members in order to play a major part in the bloc’s development. As former UK Prime Minister Tony Blair said at the CEO Summit during our visit, “The world should break down trade barriers and instil in people a sense of how their country should succeed in the future.” For more details on my trip to Thailand and how companies such as Western Digital coped and conquered the challenges of rising floodwaters, be sure to watch the video online at www.ept.ca. Stephen Law, Editor slaw@ept.ca Follow me on Twitter http://twitter.com/#!/EPTmagazine

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NEWSWATCH N E W S WAT C H NEWSWATCH electronic products and technology • march-april 2012

Semi maker Gennum sold to Semtech

Rush Electronics converts to TCH Ltd.

Gennum Corp., Burlington ON-based supplier of high speed analog and mixed-signal semiconductors for the optical communications and video broadcast markets, has entered into a definitive arrangement to be acquired by Semtech Corp., Camarillo CA, supplier of analog and mixed-signal semiconductors. Semtech is to acquire all of the outstanding shares of Gennum for a total consideration of approximately $500-million. Semtech management believes the acquisition of Gennum will extend its leading portfolio of infrastructure products to the metro, access and enterprise computing markets and will enable California firm to provide its customers with more platforms to differentiate their own high-speed voice, video and data transmission products. The combination will enable Semtech to deliver a broader range of best-in-class solutions aimed at helping its customers create differentiated communication equipment to solve increasing bandwidth bottlenecks in the network. Gennum designs and sells products that enable video, data and multimedia content to be transmitted at high speed over long distances, while maintaining signal integrity and eliminating the potential for errors in transmission. Founded in 1973, Gennum has approximately 450 employees, including more than 240 engineers, with offices in Canada, Germany, India, Japan, Mexico, Taiwan, the United Kingdom and the United States.

While the address and name of former electronic component distributor Rush Electronics Ltd. officially changes to TCH Ltd., company president Jerry Arsenault says business will continue as normal to customers. Since the official acquisition by TCH last summer, the Toronto-based distributor of industrial hardware has completely transitioned all of Rush’s inventory and a dozen staff members into its 175,000-squarefoot facility. The acquisition enhances TCH’s existing line of hardware for server rack and industrial enclosure applications. Rush’s lines of captive fas- Jerry Arsenault, president TCH Ltd. teners and electromechanical hardware and exper- stands next to the highly automated tise positions TCH to grow the industrial hardware sorting area for electronic components. side of its business. Arsenault has melded Rush’s electronic inventory with TCH’s product lineup, comprised mostly of hardware, laminate panels systems, fabricated foam and speaker components. “Our electronic inventory levels will go up. This will be based on customer demand and our increased level of risk,” Arsenault explains. “We built the TCH business on speed and service and we expect that to fully translate over to the former Rush customer.” Since the acquisition, TCH moved Rush’s Ontario distribution centre into its Toronto facility. It has also merged the BC and Alberta distribution centres into one Calgary location, which it plans to expand. TCH now has locations in Toronto, Montreal, Calgary, Buffalo and Dallas. TCH is informing Rush customers that they can expect to be able to order and receive Rush product with no interruption. During the period of transition to TCH, Rush customers will continue working with the same sales and customer service contacts. Product price agreements, billing practices and support levels are all expected to be kept unchanged. “Once we get everyone settled in our objective is to grow the Rush side of the business by 15% in revenue growth through the rest of 2012,” says Arsenault. TCH’s address is 40 Emblem Crt., Toronto and can be reached toll free at 800-465-6281.

Digi-Key adds three principals Electronic components distributor Digi-Key Corp., Thief River Falls MN, signed a global distribution agreement with LeCroy Corp., Chestnut Ridge NY, provider of test and measurement solutions. “Not only will our partnership with Digi-Key contribute to our global growth,” adds Roberto Petrillo, LeCroy worldwide vice-president of sales, “Digi-Key’s international communication technology and logistics expertise will provide any engineer looking for our products, anywhere in the world, the value of superior service in the key areas of product availability, on-time delivery, and responsiveness.” Digi-Key has also signed a global distribution agreement with LEMO, provider of high quality push-pull connectors. LEMO supplies more than 50,000 combinations of product that continues to grow through custom specific designs and are found in a variety of challenging application environments including medical, industrial control, test and measurement, audio-video, and telecommunications. Digi-Key has also signed a global deal with Marktech Optoelectronics, provider of LED technology, products and solutions. Marktech has been involved in many high-end, high-profile projects and serves several markets including aerospace and defense, medical technology, industrial manufacturing and robotics and sign and signal.

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E-T-A appoints Interior Electronics as distributor in BC E-T-A Circuit Breakers Ltd., Richmond Hill ON, has appointed Interior Electronics as its new distributor in BC. Strong regional support is a key part of E-T-A’s strategy and Interior’s approach to the distribution business is a good fit, according to a company news release. E-T-A continues to align itself with distributors that have the capabilities that allow them to become more of a strategic partner and provide the focus that will help grow the business. Interior Electronics was founded in 1963 and has grown to three locations, with head office in Kelowna, and branches in Burnaby and in Victoria. As a member of the Edge Marketing and Procurement Group, the firm is able to provide the products and efficiencies of a large corporation.

Mouser Electronics Inc., has reached a partnership with Amphenol TCS, a leader in highspeed, high-density connection systems. Amphenol TCS designs integrated interconnect solutions for applications in the networking, communications, storage, and computer server markets. The product line includes a diverse range of high-speed backplane and mezzanine connectors including the InfinX and NeXLev families that are designed to meet the increasing bandwidth demands of parallel board to board interconnection. Capable of support 25+Gbps and 12.5Gbps respectively, the InfinX and NeXLev connectors are optimized for differential signalling and offer the reliability of BGA attachments. Mouser has also reached a global agreement with Monolithic Power Systems (MPS), a leading fabless manufacturer of high-performance analog and mixed-signal semiconductors. The new distribution agreement expands Mouser’s line card of analog and mixed-signal semiconductor offerings to design engineers and buyers. MPS produces power management integrated circuits (ICs) for dc to dc converters, LED drivers, backlight controllers, Class-D audio amplifiers and other linear ICs.

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Independent North American electronic component distributor Mondial Electronics, St-Laurent QC, has launched its new look product source brochure. The six-page brochure provides customers with more and clearer information, plus a breakdown of the components segments, as well as the many service options and customer specific programs that are available. Since inception in 1998, Mondial has implemented programs and developed many partnerships with customers and has contractual agreements with many worldwide manufactures and suppliers. Mondial also enforces strict supplier quality programs (ISO9001-2008).

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X Tronics marks 10th anniversary

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Aurora, ON

Toronto-area manufacturer’s representative X Tronics Inc. recently celebrated its 10th anniversary in business and hosted a small celebration during its national sales meeting. Founded in 2001 by Claude Haji, X Tronics serves the Canadian market coast to coast. Its primary markets include industrial automation, mobile & transportation equipment, medical, aerospace and defence, energy exploration.

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products on review

electronic products and technology • march-april 2012

Junction boxes serve hygienic design requirements HD junction boxes joins firm’s Hygienic Design enclosure line. Easy-to-clean units are compact stainless steel, with sloping sides and external, gap-free seals ensure top hygienic characteristics. Quickrelease fasteners and a tighter than usual mounting rail pitch pattern also guarantee simple assembly and flexible component mounting. The safe and gap-free gasket between the enclosure and cover is achieved by an external, blue silicone seal. In comparison to conventional seals, it is much more stable in contact with detergents, acids and alkalis, and it can also be replaced more easily. RITTAL SYSTEMS http://ept.hotims.com/40519-41

High-speed test platform serves multiple serial protocols TPI4000 Protocol Analyzer Series allows users to analyze, stimulate, stress and characterize high-speed serial links, with support for speeds up to 10Gb/s. One instrument performs multiple test functions and looks at a variety of protocols such as Ethernet, Fibre Channel, Common Public Radio Interface (CPRI), and Serial Front Panel Data Port (FPDP). Product series consists of two models: TPI4202 a portable unit with a built-in monitor and keyboard and supports up to 8 ports. TPI4208 is a 4U rack-mount unit that supports up to 32 ports. Each model is highly configurable with options to support different data rates, to support different protocols. TEKTRONIX http://ept.hotims.com/40519-44

Ultra hazardous area camera includes a LED flash array Extronics iCAM501 ultra hazardous area camera includes a LED flash array and provides 3 times more illumination power, allowing pictures to be taken in the darkest situations. This feature is controlled by the enhanced software which regulates the flash intensity depending on the ambient light available. Unit includes a high performance lens that improves picture quality and overall camera performance. The date stamp provides valuable chronological information when reviewing pictures. Product comes with a removable rubber casing which enhances durability and grip whilst retaining portability and ease of use. EXCELLIT MARKETING http://ept.hotims.com/40519-42

Signal integrity network analyzers sport 8, 12-ports SPARQ series of signal integrity network analyzers are available in 8- and 12-port models, which make S-parameter measurements quickly and is a fraction of the price of a Vector Network Analyzer (VNA). Units provide signal integrity engineers with ability to characterize crosstalk in multi-lane differential structures. All models utilize a built-in OSLT calibration kit to allow users to rapidly calibrate the analyzer and measure the device under test, without using error-prone calibration standards that are external to the instrument. This means that a user can complete a full 12-port S-parameter measurement in approximately 30 minutes. LECROY

Audio alerts deliver rugged construction, wider temperature range TRIE Series audio alerts serve as replacements for competitive PMB, YMP and SMB units from other suppliers. Product’s newly designed case of Noryl plastic is mechanically bonded for high impact and a wide temperature tolerance. Product’s provide an operating temperature range of -40 to +175F and produces a high sound output of an attention getting 95dB at 400Hz within a voltage range of 8-16Vdc @45mA. A variety of terminations is also available including quick connect tabs, PC terminals and a choice of wire leaded types. Off white is standard case color. TRANSDUCERS USA http://ept.hotims.com/40519-45

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Align Adjustable Height Workstation provides improved level of ergonomic comfort, flexible functionality and enhanced productivity. Unit can be easily adjusted to accommodate the worker with the appropriate work surface height. With an adjustable height ranging from 27” to 42” (not including work surface), the unit can be adjusted through the use of a motorized, hand crank or slide leg base. Motorized base can be preset with three height positions. Unit’s load capacity is 1000 lbs. dynamic for motorized bases and 500 lbs. dynamic for the hand crank base. LISTA INTERNATIONAL

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Anti-vibration grommets dampen noise Keystone Series of Anti-Vibration Grommets provide electrical insulation, mechanical damping and noise suppression in office or lab equipment. Product’s isolate sensitive instrumentation from unpredictable vibration and shock and provide ‘fingers’ that flex as needed to dampen unwanted noise or vibration. Incorporated are special shoulder screws to provide correct spacing that allows screws to be fully tightened down. Devices accommodate panels from .031” to .125” thick, these insulating anti-vibration grommets are manufactured from durable EPDM rubber in black or blue color. The mating, custom fitted shoulder screws are made of Nickel plated steel in 6-32 and M3 threads. EMX ENTERPRISES

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Integrated 1.8”-7” TFT modules mount easily 1.8”-7” integrated TFT panels provide on board controller, ease of mounting by DIL (Dual In Line) pins, optional FPC connection, constant dimensions and consistent software interface. Modules can maintain constant dimensions when there is a change of components so that customers don’t have to re-design their product to fit the TFT modules. Devices come with built-in initialization code to suit whatever TFT driver is used. This means that developers do not need to change their software design when there is change of driver IC. DISPLAYTECH – CANADA http://ept.hotims.com/40519-48

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Quality inspection system manages reflow ovens KIC RPI Reflow Quality Inspection System helps manage reflow ovens to consistently maximize the desired results. Product provides process deficiency information in order to help users correct its defect issues quickly. Once programmed, the automatic system works in the background without any operator involvement. Product improves quality and throughput and is universally applicable because it is independent of the oven model, production lines, personnel, pcb types and even factory. KIC http://ept.hotims.com/40519-49

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products on review

electronic products and technology • march-april 2012

Wireless communications test set supports R&D

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E5515E 8960 Series 10 wireless communications test set is equipped with dual downlink paths, a powerful processor and other significant hardware improvements. Unit includes advanced features such as sustained 42-Mb/sec DCHSDPA throughput and extensive handovers between 2G/3G and LTE, for comprehensive 2G/3G/3.5G/LTE testing together with the Agilent PXT E6621A wireless communication test set for LTE. Product supports the latest TDSCDMA advancements such as TDHSDPA 2.8-Mb/ sec IP data connections, TDHSUPA signaling and test-mode connections, and TDSCDMA protocol logging. AGILENT TECHNOLOGIES

Collaboration with Ford helps Vancouver’s Azure Dynamics deliver green tech success Global leader in the development and production of hybrid electric systems for commercial vehicles, Azure Dynamics Corp. of Vancouver, has been working with Ford Motor Company to integrate its proprietary plug-in hybrid (PHEV) technology into the carmaker’s product line. Since 2009, Azure Dynamics and Ford have produced the Transit Connect West Tech Electric to market with the E-450 Balance Hybrid Electric Step Van and Columnist, Shuttle Bus. Their technology has been deployed in notable fleets like AT&T, Sohail Kamal CINTAS, DHL, FedEx Express, and Purolator to name a few. I recently caught up with Nick Bouchon, vice-president, product development at Azure Dynamics. In his current capacity, Bouchon leads a group of 40 dedicated engineers, program managers and technicians, in developing advanced electrified vehicle powertrains that inprove fuel economy, lower cost of ownership and reduce emissions.

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Niche – what sets Azure apart from other alternate fuel solutions?

Small, flexible, robust connectors maximize pcb space

“Azure focuses exclusively on light and medium duty commercial vehicles,” says Bouchon. “These vehicles are some of the worst polluters, and drive the most miles, many of them in delivery applications.” Azure focused on this niche as the volumes were too low for OEMs to become interested and customers were concentrated, comprising mostly of fleets users.

Har-flex series of space-saving, rugged and flexible pcb connectors are available in straight connector versions, as well as insulation displacement connectors and with right-angled configurations. Based on a 2-row, 1.27-mm grid, products provide all evennumbered models from 6 to 100 pins that allows for optimal utilization of pcb real-estate. For mezzanine applications, product comes in straight models in four different stack heights that allow parallel pcb distances from 8-13.8 mm to be bridged. HARTING CANADA

So what benefit do you offer commercial clients? “Azure’s hybrid and electric powertrain line-up produces a positive return on investment to our customers, ranging anywhere from 2 to 7 years depending on drive-cycle, type of powertrain (electric or hybrid), and yearly mileage,” explains Bouchon. “And, to top it off, customers are guaranteed to help save the environment.” These results are backed by independent rankings. Azure’s hybridized E-450 offering has cleaner tailpipe emissions than its non-hybrid counterpart, and the all-electric Azure Ford Transit Connect, developed by Azure in partnership with Ford, has been ranked the third most efficient vehicle in North America, ahead of the Chevrolet Volt, by the US EPA.

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Anything new coming up? Azure is currently developing a patent pending plug-in hybrid powertrain on Ford’s F-Series Super Duty trucks, including the full line-up of F-350, F-450 and F-550 trucks. “These trucks are typically used by fleet users, covering a wide variety of vocations such as utilities, telecom, construction, landscaping, shuttle buses, government and general delivery,” says Bouchon. As fuel costs represent one of the largest operating expenses for many fleets, efficiency is garnering increasing interest from fleets from government and commercial applications.

Highly accurate pressure gauges view with bright backlit display Fluke 700G Series Precision Pressure Test Gauges include nine easy to use, rugged and reliable models that deliver highly accurate pressure measurements in the harshest industrial environments. Units can measure 14 to 15 pounds-per-square-inch (psi) with a resolution of 0.001 psi (model 700G04) to -14 to 10,000 psi with a 1 psi resolution (model 700G31) with a 0.05% total measurement uncertainty for one year, providing pressure testing for virtually any application. Products log up to 8,493 pressure measurements to memory when used in conjunction with 700G/TRACK software (see below). All models provide a bright backlit display for easy viewing of data in any environment, 1/4” NPT to 1/4” ISO adapter for fast connections, and a rubber holster that protects the gauge and makes them easier to hold. FLUKE CANADA

Any words of advice for a budding tech entrepreneur? “Stick with it,” says Bouchon. “In retrospect, endeavouring to develop and sell hybrid powertrains for commercial vehicles back in the year 2000 when few people had even heard the term hybrid vehicle was a grandiose idea. Not only did we need to develop the technology, but we had to help develop the market. Azure has had many setbacks over the past decade, but our ability to stick with it, and our ultimate belief in the technology and the market opportunity kept us going, and led us to our current success.” Azure’s pre-production truck segment vehicles are expected to become available in 2013, with full production in the first half of 2014.

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Packaging cleaning agent removes flux residue AQUANOX A4638 Advanced Packaging Cleaning Chemistry rapidly dissolve water-soluble polar flux residues and exhibits a low surface tension. Product is combined with firm’s inhibition technology to provide enhanced material compatibility. The packaging cleaning agent removes flux residue from flip chip and low clearance components. Product is a non-hazardous, biodegradable aqueous solution that contains no CFCs or HAPs. KYZEN

GPS daughter boards simplify hand assembly GPS daughter boards with attached modules make it simple to add GPS functionality to solderless breadboards. Insert the daughter board pins through breadboard holes for easy hand assembly. Daughter boards are available for the SG Series and SR Series GPS modules. LINX TECHNOLOGIES

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products on review

electronic products and technology • january-february 2012

Autorange digital multimeter delivers 5 features in 1 unit

Advance package rework solution views simultaneously

HHM8229 5-in-1 autorange digital multimeter provides temperature, RH, sound, light and digital features all-inone device. Unit provides a large backlight LCD display for easy reading, auto power off and an audible and visual illuminated warning for correct input jack connections. Product can perform measurements of ac-dc voltage and current, resistance, frequency, duty, capacitance, as well as continuity and diode test. OMEGA

Metcal Scorpion Rework System provides simultaneous viewing of printed circuit board pads and component pads or balls during array package rework and the accurate placement of BGAs. Unit provides accurate component placement and can create specifically tailored reflow profiles through firm’s convection heating technology with nozzle and dual-zone pre-heater in one user-friendly, single platform rework system. OK INTERNATIONAL

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Discrete wire interconnect provides 1mm pitch S1SS Series female Discrete Wire Cable Assembly is a 1mm (.0394”) pitch system that provides a dual beam contact system for reliable, micro rugged applications. Product series mates with firm’s T1M Series Terminal Strip that is shrouded to ensure proper alignment and polarization. The T1M Series is available in both vertical and right angle configurations. The mated right angle Cable-to-Board system has a low .114” (2,90mm) profile off the board. SAMTEC http://ept.hotims.com/40519-57

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Freestanding enclosures provide modular flexibility SE 8 free-standing enclosure system provides application simplicity and flexibility, fully compatibile with firm’s TS 8 top enclosure. Unlike baying suites with frames and removable side panels, the body of the SE 8 consists of two side panels and a roof and is made from one piece of sheet steel. The rear panel of the enclosure is screwed on for easy access. Cable entry solutions can be employed on the integrated base frame, while the doors and the base/plinth of the SE 8 are fully compatible with the TS 8 program. RITTAL SYSTEMS http://ept.hotims.com/40519-60

Low profile spring pins come with above pcb height profiles 0921-X & 0926-X series of ultra-low and low profile spring pins includes five new devices that provide above pcb height profiles and through-hole or SMT options. Products are through-hole mount and have either 0.5 mm or 0.7 mm mid-stroke travel. Low profile options maintain the quality and reliability of firm’s spring pins by utilizing the same technology & internal spring components. Gold-plated components and springs ensure the highest conductivity, corrosion resistance and durability. All three pins are rated for one million cycles and have a current rating of 2 amps continuous use (3 amps maximum.) MILL-MAX http://ept.hotims.com/40519-58

Industrial cable line achieves CSA tray cable rating Industrial Series F, Series P, and Series SF cables has added the Canadian tray cable rating c(UL) TC/CIC, a Canadian Electrical Code (CEC) rating required when installing cables into tray applications. Industrial Series F are flexible and robust control cables, providing reliable flexing day in and day out. Industrial Series P cables combine oil and chemical resistance with a specially formulated thermoplastic elastomer jacket for additional flexibility. Industrial Series SF power servo cables provide flexibility to the integration and monitoring of servo drives. ALPHA WIRE http://ept.hotims.com/40519-61

Modified Electronic ENCLOSURES Hammond Manufacturing provides a full modification service for our extensive line of electronic enclosures. Our Waterloo, Ontario facility is equipped with 10 CNC machines to provide fast, accurate service We offer: • Machining to metal and plastic • Painting • Printing • Inserts and standoffs • Low minimum order

Make Hammond your first call for electronic enclosures!

Toll Free: 877-411-5911 ENCLOSURE QUESTIONS? Hammond enclosure experts will be at an EPTECH show near you!

www.hammondmfg.com • Email: modifieds@hammondmfg.com If the Hammond Manufacturing insert is missing from this issue, please go to http://ept.hotims.com/40519-7

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electronic products and technology • march-april 2012

Power Supplies/Medical Applications

Preventing system failures with redundant power systems In cases where an end-product or system cannot tolerate any downtime, a redundant power supply or system configuration should be considered. In addition, when designing a system or end-product that must have a minimum downtime, the power source should be carefully selected. In general, the longer the power supplies warranty, the longer the power supply and the end-product will operate without a failure. Power supplies contain large electrolytic capacitors, which over time will dry out and eventually fail. High quality industrial grade power supplies use higher grade and more expensive electrolytic capacitors that resist drying out and therefore ensure the longest power supply life possible. In addition, most medium to high power supplies use fans to keep them at the correct operating temperature. Since fans are electro-mechanical devices they have the shortest lifespan of any component in a power supply or system and will over time, fail.

Figure 1 is a schematic of a redundant power system. You’ll notice there are three power supplies connected in parallel by means of internal Isolation (ORing) Diodes connected in series to the system load. The isolation diodes’ function is to become back-biased (as an open-switch) in the event one of the power supplies fails. In this situation, the failed supply is automatically disconnected from the system load, its fault indicator turns from green to red, and the System Load continues to receive full power from the remaining two redundant power supplies. The failed supply is designed to be replaced while the system input and output power remains ON (hot-swapped); therefore it can replaced at the user’s convenience without impeding the operation of the system. One of the main reasons for using ‘Redundant Power Supplies’ is to construct a ‘fault-tolerant’ power system. This means that even if one of the paralleled supplies should fail the system will continue to provide full power to its

REPAIR - REFURBISH - REPLACE

POW E R

S UPPLI ES

Fig. 1: Typical redundant power system.

power bus. This is sometimes referred to as 100% power availability. In redundant power systems, each supply must include a circuit that automatically disconnects its output from the others, should it malfunction. Typically this automatic disconnect is accomplished by having isolation diodes or MOSFETs placed in series with the output of each paralleled supply. In the event one of the supplies develops a short circuit on its output (a worst case scenario) or shuts down for any reason, the isolation diodes would become backbiased or the isolation-MOSFET switch would be turned off (high impedance state), thus preventing the output current from the other supplies from flowing into the shorted or defective output of the failed supply.

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The HFE1600 Series 19” rack mount redundant power system comes with five 1.6kW hot-swap power supplies installed. If fewer supplies are needed, blanking plates can be installed in the unused slots.

In addition to having this automatic output ‘disconnect’ feature, each supply must include a signal and visual indicator which can be used to alert the user or a remote monitoring station that a specific redundant power supply has failed, so it can replaced and repaired in the future.

Typical redundant configurations

There are a number of ways to construct redundant or fault-tolerant power system. The most common method is to have at least one supply with sufficient output power to fully satisfy the system’s power requirements. Then, a second power supply of the exact same ratings is provided as a back-up in the event one of the two supplies fails. This forms a basic N+1 redundant and faulttolerant power system (1+1 system). ‘N’

equals the number of supplies required to fully power the system and ‘+1’ equals one back-up or redundant supply that will take over for a failed supply. ‘N’ could consist of two power supplies, each providing 50% of the total load power with ‘+1’ supply having the same power rating as the others. One advantage of this type of power system (2+1) is that under normal operating conditions each of the three-paralleled supplies are only providing 33.3% of the total system power, thus reducing the thermal stress on each supply and improving its Mean-Time-ToRepair (MTTR). In some mission-critical applications there may be a need for an N+2 redundant power system. As previously mentioned, the ‘N’ is the number of supplies needed to support the system’s load. However, in mission-critical applications like air traffic control, data back-up, or life support systems, having two back-up supplies provides much better fault tolerance than if one is provided. Nonetheless, there is an added expense to achieve this improved degree of power availability and fault-tolerance. It is best if all the redundant and fault-tolerant supplies have the type of interface circuits and input/output connectors that allow the supplies to be replaced while the system’s ac input and dc output power is still in the ‘ON’ state. The ability to do this is called ‘hot-swap’ and is an important feature to have. In this way, a maintenance person can replace the faulty power supply without interrupting the system’s operation.

Active current share is important

In order to properly parallel two or more power supplies, the supplies should include an ‘active current share’ or ‘master/slave’ feature. This function forces each of the paralleled supplies to contribute its share of current to the load. For example, two paralleled supplies would each provide 50% of the total load current and three supplies would each provide 33.3% of the total current, etc. These current share connections must be continued on page 14

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full online product listings at ept.hotims.com

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power supplies/medical applications

electronic products and technology • march-april 2012

Conduction-cooled 1000W power supplies are noise-free CPFE1000F series of baseplate/conduction-cooled power supplies provide up to 1000-watts without fans or forced-air cooling, thereby providing audiblenoise-free operation. With a baseplate and ambient operating temperature range of from -40 up to +85C, these single output devices operate with a wide universal input range of from 90 to 265Vac with PFC and are available with dc outputs of 12V, 28V (adjustable to 24V) or 48VDC. Due to its wide output adjustment range of +/- 20%, the output voltage can be set to match a variety of customer-specific applications. The outputs of these units can be connected in series or parallel for higher power applications. TDK-LAMBDA AMERICAS http://ept.hotims.com/40519-62

Flexible battery cells deliver up to 1,320mAh capacity with built-in safety circuit ICP Series of 3.7V lithium ion polymer rechargeable batteries combine a high energy density with a low-profile, flexible, prismatic package. Products deliver proven gel electrolyte technology, while optionally incorporating an internal safety circuit that provides failsafe protection against over-charging or deep discharge. Products are available in approximately 25 UL listed standard cell sizes and provide a nominal voltage of 3.7V (voltage range: 4.2V – 3.0V). RENATA BATTERIES

http://ept.hotims.com/40519-65

NiMH batteries aid tracking, messaging solutions ZEUS Battery custom pack solutions include coin cell, lithium, alkaline, nickel cadmium, nickel metal hydride battery units and can assemble all packs in any quantity. The 1.7Ah nickel metal hydride battery pack contains (10) AA NiMH batteries and is designed for use with tracking and messaging equipment. Unit provides up to 1.7Ah capacity and 5 weeks of backup power depending upon the mode of operation in use. CALBROOKE MARKETING http://ept.hotims.com/40519-63

Titrator detects trace water in battery materials AQUACOUNTER Karl Fischer Coulometric Titrator (AQ-2200S) improves capability and upgraded performance suitable for the trace level water content determination in lithium-ion battery materials with high accuracy. Product is for users that have many kinds of samples to be analyzed; and/or exchange KF reagents frequently or after each measurement. It is also suitable for the eco-minded and budget-conscious user. JM SCIENCE

25 Watt chassis mount switching ac-dc power supply CM25 series ac-dc switching power supplies provides 25 watts of fully regulated output power in a chassis mount case. The easily accessible terminal block and output voltage adjustment potentiometer provide product with versatility. Device has a universal input voltage range of 88 to 264 Vac and delivers output voltages of 5, 12, 24 and 48 Vdc, with efficiencies up to 83%. Product has protective features such as, short circuit, over voltage, and overload protection. The metal cage type chassis mount case is designed for free air convection cooling. Device is rated for 3000Vac isolation, is RoHS compliant, and has UL 60950 approval pending. CONTECH http://ept.hotims.com/40519-66

Sixteenth-brick power converters are low profile PKU-C series isolated dc-dc power converter come in an industry-standard sixteenth-brick form factor and deliver an output current up to 20A, or an output power equivalent to 100W. Devices operate with a 36V to 75V input voltage range and provides efficient and flexible power performance. Both modules can also be combined to power the 12V and 5V rails in a disk-drive-array application requiring higher power than 100W. ERICSSON POWER MODULES

http://ept.hotims.com/40519-64

http://ept.hotims.com/40519-67

newswatch

XP Power launches app + web product selector Global power solution provider, XP Power Ltd., Singapore, has launced two online product selection tools for engineers that ease the process of choosing a power supply. Available from web site, http://www. xppower.com, the product selector allows searching by product type, (ac-dc or dc-dc), or by application type such as healthcare, industrial, technology, defense & avionics and LED lighting. Simple search parameters such as power rating, input voltage, output voltage(s) and mechanical format provide a quick and straightforward method of finding the ideal power supply from a choice of over 2,000 models in XP Power’s product line-up.

SMTC receives California’s FDB medical license Global EMS provider SMTC Corp., Toronto, has received the licensing by the State of California Food and Drug Branch (FDB) to manufacture Class 1 and Class 2 medical devices. The FDB, which partners with the Food and Drug Administration (FDA), has authorized SMTC to operate under the rigorous quality guidelines of California’s Device Manufacturing Licensing laws. Prior to issuing the license, the FDB inspected the San Jose manufacturing facility.

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2/8/12 12:07:18 PM

SMTC’s manufacturing facilities in San Jose, Mexico and Canada have already achieved the ISO 13485:2003 registration requirements (Quality System Certification for Medical Devices).

3M and L&F complete nickel, manganese, cobalt patent license agreement 3M, St. Paul MN, and Korea-based L&F have entered into a patent license agreement to expand the use of nickel, manganese and cobalt (NMC) in lithium ion batteries. Under the agreement, 3M grants a license to US6,660,432 and global equivalents, granting L&F access to a family of low cobalt NMC cathode material compositions for manufacture and sales to lithium ion battery makers. The cathode compositions composed of nickel, manganese and cobalt offer an outstanding balance of power, energy, thermal stability and low cost. NMC cathode materials can be tailored through changes in composition and morphology to meet a wide range of demanding customer requirements from high-energy, handheld consumer electronics to high-power (hybrid) electric vehicles. For large format battery applications, the thermal stability of NMC cathode compositions contributes to improved battery safety performance and enables a lower total battery system cost.

full online product listings at ept.hotims.com

power supplies/medical applications

electronic products and technology • march-april 2012

High voltage dc power supply delivers low ripple, fast transient response DRC Series high voltage dc power supply provides 4kW to 240kW across a very wide of range applications and delivers a low ripple, fast transient response and a stable output across a wide variety of line voltages and load impedances. Product’s compact modular design provide power densities down to 5.8W/in³ with advanced thermal management for enhanced reliability. Individual units are designed for 19in rack mount with a height of just 10.5in and a depth of 24in. UNIPOWER http://ept.hotims.com/40519-68

Digital PWM controllers delivers small footprint, high efficiency Versatile family of CHiL digital PWM controllers dramatically shrink footprint and improves efficiency in a variety of mid-range to highend and extreme server, desktop, and computing applications. Six new devices meet Intel VR12 and VR12.5 and AMD SVI1 and SVI2 specifications, and support multiphase designs from 1 to 8 phases operating 1 to 2 loops. These third generation devices provide phase shedding and variable gate drive with enhanced algorithms including PID scaling (when shedding phases) and phase current balancing to ensure maximum efficiency. INTERNATIONAL RECTIFIER

Silicon carbide power devices in chip form enhance efficiency SiC Z-FET MOSFET power devices in bare die or chip form are used in advanced power electronics circuits to achieve significantly higher levels of energy efficiency than is possible with conventional silicon devices. Product is available in two versions: CPMF-1200-S080B measures 4.08mm x 4.08mm and is rated at 1200V/20A with a nominal on-resistance (Rds(on)) of 80mO; and CPMF-1200-S160B measures 3.1mm x 3.1mm and is rated at 1200V/10A with a nominal on-resistance (Rds(on)) of 160mO. Operating junction temperature for both devices is rated at -55C to +135C. CREE http://ept.hotims.com/40519-72

Ac-dc LED power supply delivers 100W constant current GLC-100 series of constant current ac-dc LED power supplies with universal / full range ac input voltage of 100 - 277Vac provides stable and reliable 100W output power and is available in six different models of constant current output at 1.75A, 2.1A, 2.45A, 2.8A, 3.2A or 4.2A with self-adjusting output voltage from 15Vdc to 54Vdc range in the various models. All models are enclosed to IP67 standards in extruded aluminum metal case design and well-suited for virtually all LED lighting applications. GREEN WATT POWER http://ept.hotims.com/40519-73

http://ept.hotims.com/40519-69

High power connector sealed for environmental conditions SPEC Pak high power connector series is sealed for environmental conditions. Device has power handling capacity from 75 to 260 amps and an IP68-rated waterproof environmentally sealed shell. Product’s housing design and materials create a rugged, watertight and weather-proof enclosure to protect electrical components from water, dust, and other harsh environmental contaminants. Device provides a UL94 V-0 flammability rating and a UL 746C F1 weather-ability rating. It is compatible with industrystandard PG threaded sealing glands and has sturdy aluminum latches with lockout/tag-out capability. ANDERSON POWER http://ept.hotims.com/40519-70

SiC JFETs lower switching losses SJDP120R340 normally on SiC trench JFET enables higher switching speeds and substantially lower losses when compared with silicon MOSFETs. Device is rated at 1200V with a maximum on-state resistance of 340mΩ (typical RDS,on of 270mΩ), and provides a positive temperature coefficient for ease of paralleling and extremely fast switching with no tail current at 150C. SEMISOUTH LABS http://ept.hotims.com/40519-71

If the TDK-Lambda insert is missing from this issue, please go to: http://ept.hotims.com/40519-11

w w w. e p t . c a

power supplies/medical applications

electronic products and technology • march-april 2012

Sealed power distribution module is compact hard-wired for 280 style

Medical 65W switcher in small footprint is ITE-certified

Cole Hersee HWB18 sealed power distribution module (PDM) is a compact PDM suitable for use in space-constrained vehicle battery compartments. The 18-slot device accepts plug-in circuit protection components with a 280 style footprint, including Delphi MetriPack 280 terminals, cable seals, and cavity plugs. Product stands up to road splash and salt spray, providing robust protection to devices. The compact sealed unit measures 60 x 38 x74 millimeters. LITTELFUSE

MWS65 series 65-watt open-frame, medical/ITE ac-dc power supplies provide 4kVac reinforced input to output isolation and output to ground isolation of 1500Vac. All models comply with UL/EN60601-1 Editions 2 & 3 safety approvals for medical equipment and include onboard dual fusing making them Suitable for use in B (Body) and BF (Body Floating) type medical applications. TDK-LAMBDA AMERICAS

http://ept.hotims.com/40519-74

http://ept.hotims.com/40519-77

2kW ac/dc power supply delivers PFC-input, inherent redundancy PFH 2K series of rugged, industrial grade ac/ dc switching power supplies with PFC-input deliver up to 2kW continuous output power. Several units may be paralleled for even higher power. Products convert a universal ac-input voltage (95-264Vac) to 36Vdc/60A, 48Vdc/40A, 54Vdc/37A, 110Vdc/18A or 125Vdc/16A. Custom input and output options are available. Product series is built with two PFH 65F internal modules which utilize field-proven design topology to provide 1kW each. ABSOPULSE ELECTRONICS

Compact battery holders connect solidly

Battery pack with integral charger drives mobile app

http://ept.hotims.com/40519-76

LXWS series wireless power transmission module enables wireless charging systems for tablet PCs, mobile devices, music players and other apps. Firm applied its circuit design and module manufacturing technologies to develop a capacitive coupling wireless charging module that is capable of charging at 10W, includes a high level of positioning freedom, and integrates removal and error detection to ensure optimal system operation. The incorporation of a very thin electrode (less than 0.1mm) with a miniaturized antenna structure decreases the thickness of the structure. Device generates limited heat in the wireless power transmission area, effectively suppresses noise, and is easy to integrate into almost any mobile device. MURATA ELECTRONIC NORTH AMERICA http://ept.hotims.com/40519-78

http://ept.hotims.com/40519-75

GS-1907 Battery Pack consists of 3 Samsung Li-Ion cells in a 3S-1P configuration provides 28.86WHr (2.6AHr) of power to mobile applications. Product includes battery charger circuits, thermal cut-outs and dedicated safety circuit and can run stand alone power. Device is configured in a soft pack with shrink wrap and is compliant with UL1642, UL 2054, UN38.3 and CE standards. Customizations including connectors, custom plastic enclosures, and alternate cell configurations and quantities are available. GLOBTEK

Capacitive coupling device enables wireless charging systems

Surface and through-hole mount battery holders provide solid electrical contact for CR1216, CR1225, CR2016, CR2025 and CR2032 lithium coin and button cells. Product’s compact design assists space-constrained applications such as computers, remote controls and other handheld electronics. Device’s nickel-plated phosphor bronze construction provides good conductivity and strength. Two metal arms secure the battery to the contact patch. LINX TECHNOLOGIES http://ept.hotims.com/40519-79

Preventing system failures continued from page 10

made between all the paralleled supplies. If active current share was not employed, one of the paralleled supply’s outputs could drift higher than the others and can ‘hog’ most of the load current, which can be dangerous and can lead to the premature failure of the power supply, especially in high power applications.

Economies of scale

Economic savings can be achieved where a system requires a specific power level when it is originally built and shipped to the end-user, but can be upgraded in the field to add more power as the system grows. For example, for data center servers the original power requirements for the system may require two or more power supplies in parallel. However, as more data handling capacity is added, more power will be required. The ability to add or reduce the total power provided to a system is referred to as ‘scalable power’. The advantage of a rack-mounted redundant power system is that the original configuration can consist of some number of power supplies with blanking plates covering the unused slots. Then, as more power is needed by the system, one or more blanking plates can be removed and additional hot-swap power supplies can be added to system to supply the additional power requirements.

Optional rack-mounting

A rack mount enclosure provides a convenient means for paralleling supplies for expansion (scalability) and/or to form a redundant, hot-swap configuration. However, many power supplies have the necessary features for being connected in parallel with active current sharing and failure alarm signals. And, by adding external isolation diodes these supplies can be configured to form a Redundant Power System. Always check your power supply’s instruction manual to be sure that your supplies can be connected in parallel, etc.

The only feature that paralleling individual supplies will lack compared to the rackmounted systems, previously described, is the special mechanical aspects that allow the power supplies to be hot-swapped while the input and output power is active. So, in non hot-swap applications, a scheduled maintenance shut-down period is required to allow time for replacing the faulty power supply.

The SWS1000L series power supply can provide 1000 watts of output power and features alarm signals and active current sharing. Two or more of these supplies can be connected in parallel with external isolation diodes to form a redundant and fault tolerant power system.

Summary

In summary, we have reviewed when and how to consider using a hot-swap, redundant and fault tolerant power system, plus the economics of scalable power and the features required of the power supplies in order to construct a redundant power system with the greatest amount of reliability and ease of system maintenance. For more information on preventing system failures with redundant power systems from TDK-Lambda Americas Inc., go to http://ept.hotims.com/40519-80

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power supplies/medical applications

electronic products and technology • march-april 2012

500W power supply combines 90% efficiency with ErP compliance GWS500 series of green 500-watt power supplies comply with the European energy saving requirements of the ErP (Energy related Products) Directive. Product’s employ innovative design techniques to combine high efficiency, high power density and low standby power consumption (<0.5W, no-load) with the confidence of a 5-year warranty. The forced air-cooled unit achieves up to 90% efficiency and comes with a 4.1 x 8.6 inch footprint and 1.6 inch height. TDK-LAMBDA AMERICAS http://ept.hotims.com/40519-81

400W chassis mount dc-dc converter delivers 4:1 range

Modular power system optimizes electronics test N6700 modular power system (MPS) expands the ability of test-system integrators and R&D engineers to deliver multiple channels of high power (up to 500 watts) to devices under test. A total of 34 modules are available combined with the 27 modules already offered. Product family ranges in power from 18W to 500W at four different performance levels: basic, high performance, precision, and source/measure unit. R&D engineers and test-system integrators can mix and match any of these 34 modules in any of the four MPS mainframes (three for automated test and one for R&D ) to create a dc power system unique to their needs. Systems can be from one to four outputs. AGILENT TECHNOLOGIES http://ept.hotims.com/40519-84

FCM series 400W chassis mount dc-dc converter series provides an ultra wide 4:1 input range of 18 to 75Vdc with output voltages of 5, 12, 24, 28 and 48Vdc. All models are isolated input to output and housed in a rugged, encapsulated enclosure with recessed barrier strips. The operating temperature range is -40 to +100C.Through holes are provided for backplane mounting or the attachment of a heatsink for extended temperature operation. CALEX http://ept.hotims.com/40519-82

Trench-based low forward voltage Schottky rectifiers boost efficiency NTST30100CTG, NTST20100CTG and NTSB20U100CTG family of 100V trenchbased low forward voltage Schottky rectifiers (LVFR) utilize a trench topology that enables low forward voltage drop and reduced leakage current. This results in low conduction losses and a substantial improvement in circuit efficiency. Product family utilizes a trench MOS structure that enables an enhanced conduction zone under forward bias, resulting in significant reduction in forward voltage drop. Under reverse bias, this structure creates a ‘pinch-off’ effect resulting in reduced leakage current. Unlike planar Schottky rectifiers, the LVFR’s switching performance is strong across their entire operating junction temperature range of -40C to +150C. ON SEMICONDUCTORS

Low-loss silicon carbide (SiC) devices boost power efficiency RJS6005TDPP Schottky barrier diode (SBD) employs silicon carbide (SiC), and incorporates technology developed jointly by Hitachi Ltd., which contributes to achieving approximately 40% reduced low power consumption – delivering a reverse recovery time of 15 nanoseconds. Devices enable faster switching speed and reduce power loss by approximately 40%. Device has a voltage rating (forward voltage, VF) of only 1.5 volts (V), lower than that of existing Si fast trigger diode products. RENESAS

http://ept.hotims.com/40519-85

1/32 brick 30W dc-dc converter series is DOSA compliant ULT series of isolated 30 Watt dc-dc converters available in a miniature 1/32 brick industry standard Distributed-power Open Standards Alliance (DOSA) compatible open frame package measure 19.1 x 23.4 x 8.89 mm. Devices take up significantly less board space than other 30W products on the market and is available with either throughhole or surface mount option. Product comes with a wide (2:1) input voltage range of 36 – 75 Vdc to meet the requirements of 48V and 60V battery back-up systems. MURATA POWER SOLUTIONS

http://ept.hotims.com/40519-83

http://ept.hotims.com/40519-86

High density hot swap front-ends deliver up to 650W, boost efficiency to 92% SGH 3000 Series of 650W, 12V front-ends serve as high efficiency, high density, hot swap power sources with a power density of 17.5W/in³ and efficiency levels to 92%. Products provide a universal ac input (90 to 264Vac) with minimum power factor greater than 0.95, they provide 12Vdc and a 5V standby outputs from a 1U high package. N+N redundant operation is achieved with active load sharing and ORing protection circuitry. A Class B EMI filter is also standard. Devices incorporate both analog and PMBus communication for status control of each power. UNIPOWER LLC

650W medical power supplies achieve UL60601-1 approval PM650 Series ac-dc power supplies provide up to 700 watts of performance packed design and are approved to the 3rd Edition of UL60601-1 and EN606011 medical safety standards. Product accepts a 90-264Vac universal input. Single output models have voltages ranging from 12Vdc to 48Vdc. PROTEK POWER http://ept.hotims.com/40519-88

http://ept.hotims.com/40519-87

Two-piece battery connector delivers twoway insertion capability Two piece battery connectors include a compact version providing two less blades than the original 6-blade type. The 4-blade model provides flexibility for both horizontal and vertical blade insertion. The compact size has also resulted in a reduction in pitch from 3mm to 2.5mm. To ensure a constant connection, the receptacle side features dual beam contact in both insertion directions. YOKOWO http://ept.hotims.com/40519-89

http://ept.hotims.com/40519-14

http://ept.hotims.com/40519-15

full online product listings at ept.hotims.com

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power supplies/medical applications

electronic products and technology • march-april 2012

Power Management IC market to 2020 ALTERNATIVE ENERGY markets and energy efficient portable gadgets to DRIVE GROWTH GBI Research’s new report, “Power Management Integrated Circuits (IC) Market to 2020 - Alternative Energy Markets and Energy Efficient Portable Gadgets to Drive Sales Growth” provides key information and analysis on the market opportunities in the PMIC industry. The report covers the trends, industry dynamics, information on the revenue and volume of the PMIC market and the market share of the suppliers. The report also provides product-based, region-based and end-use based forecasts up to 2020. The product-based forecasts up to 2020 are given for voltage regulators, controllers and converters. The key market trends for wide range of Power Management IC applications in IT/computer, communication, consumer electronics, industrial/ medical, automotive and defense sectors are discussed.

PMIC usage in the alternative energy market is increasing, as it helps in the efficient distribution of electricity. Rapid adoption of portable gadgets is expected to boost the demand of PMICs. This report is built using data and information sourced from proprietary databases, primary and secondary research and in-house analysis by GBI Research’s team of industry experts. In 2010, the world semiconductor market was $298.3 billion and Power Management ICs (PMICs) contributed around 4.7% to the overall semiconductor market. The demand for PMICs is increasing with the increasing demand for sophisticated technology, superior designs, and energy efficient low-voltage power management devices. The industry dynamics of PMICs are given in the sections below.

Strong sales of portable devices increase the PMIC market volume The number of PMICs consumed grows in proportion to the increase in sales of portable devices. This is because PMICs are used in portable devices. Some examples of the products for which demand is increasing are smartphones, hybrid vehicles, notebooks, LEDs and so on. With the increase in the sale of these products, the consumption of PMICs increases. The rise in the demand for smartphones and tablet PCs from 2009 to 2010 is shown in the figure adjacent.

Demand for power management ICs grow as demand for energy efficiency grows A key driver to the growth of the PMICs in the current scenario is demand for energy efficient products. There are various motivations to improve energy efficiency. They can be government policies, the need to save energy, reduce energy consumption or energy costs or energy emissions. For this, efficient batterypowered devices are needed. Efficient battery-powered devices require more PMICs. Even portable products are efficient only with a good backed up power device installed in it. So, as the need for energy efficiency is growing, the demand for PMICs is increasing.

Alternative energy markets create demand for power semiconductors Power semiconductors are needed in alternative energy markets. In the alternative energy industry, smart systems are being used on the grid for more efficient distribution of electricity. For efficient

distribution of electricity, new highend power management semiconductor technology is needed. So, alternative energies like solar and wind are creating a demand for PMICs to avoid wastage in power while distributing the electricity. By 2025, efficient power electronics have the potential to reduce the world’s electricity consumption by about 20-30%.

Technology improves efficiency, size and cost of power management devices Power device manufacturers must aim at improving the substrate technology to improve efficiency and lower the size and cost. From usage of silicon, to SiC (silicon carbide), and GaN (gallium nitride), there is a shift in the substrate that is being used. In power management semiconductors or PMICs, with the usage of GaN devices, one can attain improvement in resistance, switching frequency, breakdown voltage, system efficiency and power density. Using GaN-based power conversion products gives three times better performance than the existing silicon products. To get a better performance at lower cost, such improvements in the substrate technology for PMICs is needed.

New packaging solutions improve thermal management New packing solutions bring improvement in thermal management. Thermal management is a path to reducing cost and maintaining robust operations in power management semiconductors. To improve thermal management, packaging can be done by soldering heat sinks to the metal, closer coupling of wires with double-cooling on both ends. This would improve the whole packaging system which improves power management and current fluctuations in PMICs. For more information or to buy this report from GBI Research, go to http://ept.hotims.com/40519-90

Power Supplies & Cords – Wall Adapters with Interchangeable Plug Option – Desk Top to 200W – Open Frame with PFC – DIN Rails to 960W – LED Drivers – Medical Approvals

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http://ept.hotims.com/40519-18

M12 receptacles suit power applications Power connectors with M12 A-coded panel-mount receptacles are prewired with 18 gauge leads and provide increased the rated current and voltage compared to other M12 connectors. Devices are prewired with 18 gauge 200mm long leads making it now possible to conduct up to 8 amps per contact and 250 volts per connector. Devices include a PG9 mounting thread with 4 and 5 gold-plated contacts. Products are sealed to an IP67 rating. BINDER-USA http://ept.hotims.com/40519-91

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2012

power supplies/medical applications

electronic products and technology • march-april 2012

Pushing forward with innovation in energy harvesting

2011 turned out to be a very interesting year for energy harvesting, full of scientific advances, technology breakthroughs and new product developments. IDTechEx predicts that the trend is set to continue, with further developments expected in 2012, along with expansion of commercialization efforts which will push energy harvesting adoption forward.

Lowering power consumption requirements It’s not just energy harvesters that are getting better though. It’s also power consumption requirements that are coming down and what better example than Intel’s Claremont, showcased in September 2011, a concept processor that was demonstrated to run light workloads on solar power by dropping power consumption to under 10 milliwatts. “It may not become a commercial product, but the research could be integrated into future processors and other circuitry” Justin Rattner, CTO of Intel said at the time.

technology, in which Micropelt’s thermal energy harvesting technology allows for a fully embedded and sealed cooking sensor for the life time of the gear (A single 6mm2 Micropelt thermogenerator powers a fully self-sustaining MSX cooking sensor just from the normal process heat). Micropelt also developed qNODE working together with Schneider Electric, a wireless condition monitoring sensor and Micropelt’s solution to increasing both operating safety and power availability in 24/7 production environments. The qNODE wireless temperature sensor generates its power from the resistive heat of the device it is monitoring.

By Dr. Harry Zervos, technology analyst, IDTechEx

The temperature and cooking sensors developed by Micropelt. (Source: Micropelt)

“Full production solutions will be based on standard or proprietary hardware and protocols with specific energy demands,

Intel’s Claremont CPU. (Source: Intel)

Optimizing harvester power generation At the other end of the spectrum, energy harvesters are drastically improving also. In only a few years, piezoelectric harvesters moved on from harvesting power of the order of µW to devices demonstrated in 2008 harvesting miliwatts. An even more recent example was showcased at Energy Harvesting 2011 in Boston last November when research work from the National Institute of Aerospace (NIA) in the USA was presented on the development of high energy efficiency piezoelectric energy harvesters. Focusing on basic scientific principles that demonstrated how the '33' (longitudinal) excitation mode on piezoelectric harvesters is characterized by 3 times higher energy conversion efficiency than the '31' (transverse) excitation mode, the NIA researchers described the design and construction of a hybrid piezoelectric energy harvesting transducer that can harvest 4 times more energy than a tradition '31' harvester. Further work at the NIA is focusing on optimizing these devices with numerical piezoelectric harvesters being developed that can harvest up to 1W of power with work on these devices expectd to be published in 2012.

Innovate and commercialize What makes the energy harvesting space feel more vibrant is the fact that it’s not just the research and development part of the chain that’s alive with innovation. Concepts and laboratory prototypes are not the only devices coming out of research teams. End user pull is increasing, leading to increased interest in the capabilities of energy harvesters and the bespoke performance they can provide in very specific operating environments. Taking advantage of that specific selling point of their technology, thermoelectrics company Micropelt demonstrated not just one, but two new products in the past year: • A cooking sensor co-developed with MSX http://ept.hotims.com/40519-19

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but the qNODE shows exactly what’s available,” says Burkhard Habbe, VP of business development with Micropelt. “The bottom line is, stand by for further innovations in 2012, there’s more to come and it’s sure to inspire” Says Dr Peter Harrop, chairman of IDTechEx. For more information on technologies for energy harvesting & storage and wireless sensor networks from IDTechEx (www.IDTechEx.com), go to http://ept.hotims.com/40519-92

electronic products and technology • march-april 2012

Environmental Design

Coordinated circuit solar power power protection for small solar systems

By Neal Schultz, senior applications engineer, TE Circuit Protection Ltd.

Rising energy costs and increasing support for clean, renewable energy sources has made solar power a growth industry. Solar panels directly generate power by converting sunlight to electricity with no moving parts, zero emissions, and little to no maintenance. Solar power systems can be either independent (off-grid) or connected to the utility power grid. In the off-grid model, battery packs are used to store electrical power for night usage or peak consumption periods. Independent systems may also be used by telecommunications providers or satellite TV broadcasters, and can be combined with wind power or micro-hydropower resources in a mixed power generation station.

protection devices is particularly important in these applications. An effective, coordinated protection solution helps minimize downtime, an important consideration since solar power systems usually consist of unattended operations with long maintenance and service life requirements. The cable of each solar panel in the solar power system is first connected to the header box of the solar system controller. Figure 2 illustrates an overvoltage protection design with MOV (metal oxide varistor) overvoltage protection devices applied to the input terminals of the header box and controller. For solar applications with higher voltage and reliability requirements, gas discharge tubes (GDTs) connected in series with MOVs help provide a greater level of protection – especially for cabling running outside of premises. For lower power systems with voltages less than 48Vdc, GDTs can be used alone for overvoltage protection. Figure 1. Typical solar power system diagram. Consideration must also be made for failure modes of overvoltage devices from follow-on current. A coordinated overcurrent/overvoltage protection scheme can help improve system reliability in the case of overvoltFigure 2: Coordinated solution for solar controller input protection. age device failure. The resettable polymeric positive temperature coefficient (PPTC) devices shown The solar power block diagram in in the coordinated solution can be used Figure 1 describes a typical system of for ac or dc powered loads in the system. solar panels, a controller, energy storFor the dc load of solar power systems, age and an inverter for conversion of dc the circuit design in Figure 2 may also be to ac, and shows how the solar power applied for lightning protection. generator can be connected to the power grid if desired.

Lightning protection To maximize light exposure over the solar panels they are usually installed in open fields or in elevated locations (e.g., rooftops of buildings). These installations can make solar power generation systems vulnerable to transients, such as ring-wave and lightning, as well as coupled transients from adjacent cables like power/ control lines in the same conduit. In compliance with the electrical environment category of IEC61000-4-5, the power connect cabling out of the solar panel is a Class 4 subset of the IEC61000-4-5. Protection levels of Class 4 electrical systems are 2kV line-to-line and 4kV line-to-ground, although adopting 6kV protection levels is recommended. The surge-handling capacity of overvoltage

Controller and inverter protection

The power output generated by the solar panels can vary depending on light levels received due to clouds or other types of shading effects. One example is when the sun traverses the horizon and shade from trees or structures prevents light from striking the entire array, causing droops in power levels received by the controllers and inverters. Controllers and inverters are susceptible to many types of transients. Electrostatic discharge (ESD) sources include human, open air or a phenomenon of transients that are generated from the glass of the solar panels and discharged into the controller and inverters. Coupled transients like EFT (electrical fast transient) and ringwave, and lightning, whether by direct or indirect (close proximity) hits, can

also generate transients. Communications ports on controllers and inverters are susceptible to these transients. Protecting the controller and inverter and their communications ports from overvoltage transients can be accomplished with the 2Pro device, which combines a PPTC overcurrent component with an MOV into one thermally protected device. This device helps to provide resettable current limiting for overcurrent conditions and voltage clamping during overvoltage events. Under normal operating conditions the ac line voltage applied to an MOV is not expected to exceed the device’s maximum ac root mean voltage (VacRMS) rating and, provided that the transient energy does not exceed the MOV’s maximum rating, short-duration transient events are clamped to a suitable voltage level. However, a sustained abnormal overvoltage/limited current condition may cause the MOV to go into thermal runaway. Standard unprotected MOVs are typically rated to 275VacRMS for a universal input voltage range. In a loss of neutral condition they may overheat with negative consequences, even if a fuse or power resistor is used upstream. In a worst case scenario, as shown in Figure 1, a voltage of 400Vac instead of 230VAac, derived from a loss of neutral, is applied. In such an unlimited current condition, the unprotected MOV will first fall to low impedance of a few ohms, but due to the high amount of energy present it may rupture. If there are devices placed on the ac line return path to limit current flow these may also overheat due to the failure of the MOV. Figure 3 illustrates the effects of these abnormal overvoltage conditions on three devices or a combination of devices: 1) 2) 3)

2Pro device (TE’s LVM2P-015R10431 device) Single MOV (10mm, 275 VRMS – TE’s ROV10-431K device) MOV/4W with power resistor (10 ohms)

As shown in Figure 3, the 2Pro device’s PPTC element helps prevent thermal run-

away, maintaining varistor surface temperature at less than 150C, and prevents the device from reaching unsafe temperatures caused by overvoltage transients. This approach helps manufacturers comply with IEC 60950 and IEC 60335 and helps equipment remain operational after specified lightning tests according to IEC 61000-4-5.

Battery Pack Protection In solar power systems the safety of the battery pack is a very important design consideration. Both lead acid and lithium batteries that are integrated into the system or installed with an external wire connection can be affected by potential failures such as cable short circuit, misconnection of the battery’s positive and negative poles, or overtemperature issues. Such failures can cause minor damage to the equipment’s circuit or result in serious property damage or safety issues. Battery packs are also subject to external short circuit events during transportation and installation, and overcurrent protection is required to improve safety and system performance. The Metal Hybrid PPTC (MHP) device was developed for these types of battery pack applications and provides over 30A of working current when the specified voltage is over 30Vdc.

Summary Protecting the photovoltaic system against damage resulting from overvoltage and overcurrent transients is critical to improving reliability, safety and longevity. Proper system grounding and a robust circuit protection strategy can minimize the effects of such damage. For more information on cost-effective solutions for emerging technologies from TE Circuit Protection, go to http://ept.hotims.com/40519-111

Figure 3. Effect of loss of neutral condition on various devices

full online product listings at ept.hotims.com

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electronic products and technology • march-april 2012

Switches & Circuit Protection

New Generation Surge

Protectors Bring Benefits for I/O Systems

By Alan Balcombe, portfolio marketing manager, Weidmuller North America

Summary: A lot has changed between the early generations of surge protectors for signaling, and the versions available today. New innovations have improved the quality of protection, broadened device functionality, and made it easier for users to manage the crucially important ongoing protection. Vulnerability from lightning damage for measurement and control instrumentation in industries such as water, wastewater, chemicals and petro-chemicals, is a major concern to plant managers. Direct strikes, which cause damage to control systems, are relatively rare through the use of mechanical protection, such as ground rods, which act as an effective first line of defense. However, product damage and signal disturbances are much more frequently caused by transient surges as the result of remote strikes and cloud-to-cloud strikes. This problem is aggravated with the increased number of sensitive microprocessor-based electronics in field instrumentation and the growing use of fieldbus signaling. When the damage reaches through to the DCS I/O system, it can result in partial or complete plant shutdown. This makes the value of I/O surge protection of the upmost importance.

V-Test unit offers simple and easy testing of VSPC pluggable surge protectors.

There are two primary surge formats – one with pluggable arrestors, the second in compact terminal format. The compact terminal format is ideal for process instrumentation installations. They include options and features, which improve the choice and breadth of applications and ensure high quality, ongoing protection through monitoring options and easy replacement. Following the direction of the latest IEC installation standard, both types automatically provide status indication or alarming to alert for arrestor replacement.

Two in combination is more effective than the previous combination of three. Also, the maximum surge discharge capability (Imax) is 20kA (8/20µs), even for the compact, terminal-sized SPD, compared with 5-10kA in the past. This doesn’t mean we expect it to discharge higher surges, although it can. It does mean the SPD will last longer i.e., will withstand many more 1kA or 2kA transients. In addition to this, protection for floating or grounded signal lines is offered, recognizing that many DCS I/O signals, especially analog, are floating (not ground referenced).

Continued protection Once fitted, maintaining good ongoing surge protection has been a labor-intensive activity and for this reason, a less reliable one. The issue is that the arrestors, or voltage limiting components, gradually wear out. The more transients they suppress, or current surges they discharge, the less efficient they become until they degenerate into an interfering additional load in the loop to which they are fitted. If failed SPDs in I/O systems are not recognized and replaced, users at best should expect measurement errors and poor control. It is therefore critical for the user to regularly monitor the SPD status, so the worn-out arrestors can be replaced in a timely fashion. The manual testing procedure has been a hassle however, and until recently, the SPD had to be disconnected from the measurement or control circuit while electrical checks were made to assess its condition. Large process plants can have thousands of analog and digital I/O loops to be checked. The involvement of the shift manager, coordination with the control room, generation of work permits, and switching to manual control for critical loops, all means that SPD monitoring is a complex maintenance function. Recent innovations have simplified the maintenance of surge protectors in a variety of ways, based on the ability to automatically detect the degrading condition of a MOV, GDT or TAZ. The thermal

disconnect (or trip), using a technology already well proven in power surge protection, is the key component that takes the arrestor out of the circuit when it degrades. The arrestor’s increased leakage current, as it becomes a less efficient insulator, increases the heat generated until the thermal trip operates. Whereas in power applications the trip would disconnect, opening the arrestor circuit to prevent high current flowing from the live conductor to the ground. In signaling applications the trip shorts the protected circuit to ground, and/or between conductors. This action is the subject of a recent mandate in IEC 62305, the international standard for the installation of signaling surge protectors. The goal of making the short circuit is to create a condition which will be noticed by the DCS as a “signal out of range”, generating a system alarm and thereby initiating a job request for a circuit check by a technician, who would then replace High density VSSC4 the arrestor. The surge protector. additional benefit of the short circuit is to protect downstream equipment from further transient surges by providing a ready path of low resistance to ground.

Finding and fixing When the technician arrives at the control panel, knowing which loop needs to be checked because the DCS has identified it, the arrestor-replacement job is simple. Colored markers on the SPD will verify the nominal circuit voltage of the device. Worst-case scenario, the technician will need to disconnect a few cables,

Progress in performance In this latest generation of signaling surge protection devices (SPDs) some of the trusted basics are still in place. Common mode (conductor protected to ground), remains the primary protection, and series mode (conductor to conductor), is widely featured as well. The familiar voltage limiting components, Gas Discharge Tubes (GDTs), Metal Oxide Varistors (MOVs) and Avalanche Diodes (TAZs), usually in combination, are still the heart of the SPD. Now, these arrestors are faster in operation (switching on), better insulators, and discharge higher transient currents.

Typical status loop surge protection with input from a Conductivity probe (switch). Transient surges may be discharged to ground via the DIN mounting rail or via the SPD’s terminals 3/6.

test the SPD and re-connect. The SPDs fitted may have pluggable arrestors that confirm which item is to be replaced via their local LED display. Otherwise, with high-density, nonpluggable types the technician may look at the array of surge protectors and see their integral LEDs lit to show positive loop status. If any SPDs are found with LEDs fitted, but not lit, the technician may wish to test the loops. Lever disconnects on the SPD will make testing easy (again, without removing cables) by enabling a test voltage to be applied, which will turn on the LED if the arrestor is in good condition. A valuable option with pluggablearrestors is remote status signaling, where the SPD itself generates the call for the technician. This has been long used in power protection and only recently introduced to signaling protection. When the thermal trip is activated it operates the integral indicator and a switch to send a remote signal either into the DCS, the technician’s workshop, or both. To minimize the alarm cabling involved, the pluggable SPDs can be grouped up to ten in series, and connect to a single relay to initiate the remote alert. Another new timesaving tool and an essential accessory for pluggable SPDs is the dedicated portable test unit. This device, developed to help fulfill the requirements of IEC 62305-3, which calls for periodic inspections for surge protectors, can be used for pluggable signal or power arrestors. The ultimate simplicity of unplugging the installed arrestor from its base, inserting it into the test unit, and reading the “OK/NOT OK” display makes the job a potential favorite for the technician – meaning, of course, that the job stands a good chance of being done. Despite the additional protection these new SPDs offer, their lifetime is finite and hence protection is never complete. The number of transients occurring over a period of time, and their severity, are usually unknown, and therefore the condition of the arrestors are also unknown. Thus the best method, to effectively protect equipment in applications where lightning is a regular occurrence, is for plant managers to 1) fit suitable SPDs designed for easy testing and 2) test them regularly. For more information on new generation surge protectors from Weidmuller North America, go to http://ept.hotims.com/40519-93

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switches & circuit protection

electronic products and technology • march-april 2012

Two-wire, Hall-effect latch boosts voltage transient protection A1244 two-wire, Hall-effect latch is programmed at the factory to optimize the magnetic switch point accuracy. Device uses the same patented high frequency, 4-phase, chopper-stabilization technique that is used on complementary devices in this family (unipolar switches). Firm’s BiCMOS wafer fabrication process is used to achieve magnetic stability over temperature and to eliminate offset inherent in single-element devices, when exposed to harsh-application environments. Product comes in two package styles -‘LH’ is a SOT-23W style, miniature low profile package for surface-mount applications. ALLEGRO MICROSYSTEMS http://ept.hotims.com/40519-94

High performance circuit breaker is compact

Rotary DIP switch delivers IP67 seal protection, 5-position options

L-Series Circuit Breaker is compact and provides a best in class performance in a low profile, space saving package. Device’s design complements the overall spatial objectives now required by telecommunications and data-communications systems designers in their quest to reduce the overall size of equipment, while increasing transmission capacity. A patent pending flush rocker actuator design and optional push-to-reset guard provides additional protection against accidental switching. CARLING TECHNOLOGIES

RDT series rotary DIP switch provides a choice of 4, 6, 8, 10 or 16 positions and offers IP67 sealing protection for applications that need protection from the elements. Devices also come with SMT or thru hole option termination options, plus right-angle or vertical mounting options. Device comes in choice of tape & reel or tube packaging and has gold contacts. E-SWITCH

http://ept.hotims.com/40519-95

Combo circuit breaker switch reduces design-in cost 3130 combination circuit breaker and switch is a single pole thermal circuit breaker with push button operation, reducing cost of individual components in design. In the event of an overcurrent, device trips, goes into the off position and reliably disconnects the air-conditioning system and its cables from the supply network. This version of the 3130 can be ordered with 450 angled screw terminals with M4 screws and clamping piece. E-T-A CIRUCIT BREAKERS http://ept.hotims.com/40519-96

Waterproof piezoelectronic speakers enhance sound, placement flexibility VSLBG2216E1100-T0 thin and waterproof piezoelectric speaker line complements firm’s existing line of non-waterproof thin speakers. Device builds on the success of firm’s earlier waterproof model with enhanced sound quality through a slightly wider package (22 x 16.5mm). Measuring 0.9mm in thickness, the device retains ultra low profile proportions and watertight abilities (IPX7 compliant) while increasing performance. MURATA ELECTRONICS

http://ept.hotims.com/40519-101

Blue-violet laser diode supports precision applications Renesas Electronics and California Eastern Laboratories (CEL) are now sampling a NV4V31MF powerful high precision 405nm BlueViolet Laser Diode, that provides precise laser emission supporting a wide range of applications. Device provides a cost-effective unit in a compact package delivering enhanced linearity over a wide range of output power and temperature extremes, produced with Renesas’ reliability and consistency. CEL http://ept.hotims.com/40519-102

V-Lock

IEC Connectors and Cordsets

http://ept.hotims.com/40519-97

24mm, IP65 pushbuttons shorten above panel dimension YB2 Series of 24mm square, flush mount and tamperproof panel seal pushbutton switches are available in both illuminated and non-illuminated models, and provide an 18mm in diameter square actuator. Splash proof device offers an above panel dimension of 1.8mm. The tamperproof design is complemented by dust tight and splash proof panel seal protection, providing a defense against low pressure jets of water from all directions. Products meet IP65 of IEC60529 standards. Bright or super bright LEDs are available in red, green and amber, with matching color caps and built in ballast resistors. Custom legends on the actuator are available. Bezel options are silver or black. Cap color options for non-illuminated models include white, red, green, yellow or metallic silver for an enhanced panel design. NKK SWITCHES http://ept.hotims.com/40519-98

Pushbutton switch eases activation in indoor, non-dusty applications

S8 Miniature photoelectric sensors enhance detection performance

Controlmec a five position integrated switch solution provides easy activation in indoor and non-dusty applications. Device can be used to control a unit, navigate in a display, or to operate indoor auxiliary equipment on a vehicle or boat. The single pole/momentary device can also be supplied as an IP67 sealed solution and is rated for a lifetime of 10-million operations. The solid cap has a temperature range of -40 to +65, while the LED operates from -40 to +85C. It is available in nine cap colors and eight LED colors or color combinations. APEM

S8 Series of miniature photoelectric sensors available in diffuse proximity, fixed focus proximity, polarized retroreflex, retroreflex for transparents and through beam improve detection performance. Products are also available as laser models with coaxial polarized retoreflex and background suppression. The laser version provides a very focused spot below 1mm and switching frequencies that reach 10kHz. ASI

http://ept.hotims.com/40519-100

http://ept.hotims.com/40519-99

Schurter’s new V-Lock cord retaining solution for appliance inlets and outlets provides an attractive and cost effective alternative to bulky wire bale or clamp accessories. The cord connector latches into the appliance connector to prevent unintentional disconnection of the cordset. The mechanism easily releases by depressing the sliding lever. - available for Schurter inlets, outlets and power entry modules according to IEC 60320 in styles C13, C14, C19, and C20 - rated 10/15 A @ 250 VAC and 16/20 A @ 250 VAC - various Nema and international destination plugs - ideal for use in medical, IT and audio equipment - cUL and ENEC approved www.schurterinc.com/new_pems

http://ept.hotims.com/40519-22

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http://ept.hotims.com/40519-23

switches & circuit protection

electronic products and technology • march-april 2012

Single-channel digital potentiometers range in resolution, interface, resistance options

Sealed plastic switches avert corrosion Cole Hersee 75920 Master Disconnect Switch and the 95060 Series Ignition Switches provide a sealed engineered-plastic body that helps applications endure extremely corrosive effects of winter road salt brine. The high amperage capacity model protects vehicles from tampering, theft and battery drain. Made of a sturdy, composite-engineered polymer housing, the switch has been tested in accordance with SAE J1455 for salt corrosion. Designed to withstand full immersion and keep working, the device has an integral lockout feature that helps with lockout/tagout compliance. Unit includes multiple electrical configurations. LITTELFUSE

AD511x series of single-channel digital potentiometers provide a variety of resolution, interface and resistance options, allowing system designers to select the most suitable device for a wide range of consumer and instrumentation applications. Products enhance resistance tolerance, high current density and faster nonvolatile memory than competing devices. Devices are also low power and easy-to-use. ANALOG DEVICES http://ept.hotims.com/40519-103

Power pushbutton switches deliver tactile feel with quiet detent

http://ept.hotims.com/40519-106

PWR Series power pushbutton switch provides redundant double break contacts. The RoHS-compliant and IP65-sealed devices improve tactile feel with quiet detent. Designed with a SMD package, product allows single step processing of SMD boards. The momentary, single-pole single throw (SPST) devices provide an extended operating life of 100,000-mechanical cycles. C&K COMPONENTS http://ept.hotims.com/40519-104

Guitar potentiometers provide no load, left handed, long bushing options

Miniature rocker power switch is rated at 8Amps @250Vac CW GRS–4021 series miniature rocker power switch is rated at 8Amps @250Vac for use in product sold in Europe that require VDE approval and have contact gaps greater than 3mm. The RoHS compliant device is available in DPST construction. Products are made of heavy duty nylon with copper alloy terminals and provide a male .187’’ wide quick connect terminal for ease of installation. Device can be mounted securely in a .756’’x.508’’ panel opening requiring no screws or other fasteners. CW INDUSTRIES http://ept.hotims.com/40519-107

Specialty line of potentiometers upgrade electric and bass guitars for improved sound quality, reliability and longevity. The ‘no load’ device is designed with a long-wearing insulator and a positive action detent for improved reliability. The left-handed device provides special reverse audio tapers and a logarithmic curve specifically designed for excellent volume response at all positions along the unit. BOURNS http://ept.hotims.com/40519-105

Power rocker switch UL rated at 16A 125Vac Solid state relays, contactors reduce size per unit RG Series of ac and dc solid state switching relays and contactors are suitable for switching resistive, slightly inductive and motor loads. Device reduces size per unit, starting at 17.5mm width, up to 85Aac (15Hp) switching, nominal ratings at 40C and SCCR rating of 100kA. RGS series solid state relay provides a slim 17.5mm width, with maximum output voltage of 600Vac and a current rating of 90Aac (with proper heat sink). Both the ac and dc control versions are available covering a wide range of input voltages. CARLO GAVAZZI

http://ept.hotims.com/40519-21

http://ept.hotims.com/40519-108

SWITCHES & CIRCUIT PROTECTION

Since 1920, Carling Technologies has been a World Leader in the manufacture of Switches and Circuit Breakers. Featuring a broad Product portfolio of standard and custom designs, Carling provides solutions for the simplest to the most rigorous applications while serving a vast array of of market segments including: Transportation, Marine, Renewable Energy, Military, Medical, Datacom and Telecom, among many others. Please visit our website for complete details.

Tel: 860-793-9281 • 60 Johnson Ave. • Plainville, CT 06062 USA

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RL2-series power rocker switch is made with RoHS compliant material and provides a UL rating at 16A 125VAC, 8A 250Vac and VDE rating at 16(4)A 250Vac T125, with electrical life over 10,000 cycles. Device snaps into panel cut-out 22.0 x 30.0mm. Device functions include On/Off, On/On, On/Off/On and momentary. An external PVC cap provides protection against dust & water, as device is made of PA66 nylon, silver alloy contacts and terminal options for ¼” quick connect, solder lug or screw type. PHASEDA http://ept.hotims.com/40519-109

Case-current sensing switch simplifies circuit monitoring AS1 Series compact case current sensing switch has a small 1-inch housing that provides a compact and cost-effective solution that enables monitor of an energized circuit in tight spaces. The easy-touse ring design easily slips onto a conductor to reliably detect currents as low as 0.5A with a single conductor pass, eliminating the need to wrap conductors multiple times. Reliable, solid-state output with no moving parts provides a nearly unlimited number of operations. Device has 24-inch leads that can be connected directly to controller input terminals or brought out to a terminal block to facilitate remote operation. NK TECHNOLOGIES http://ept.hotims.com/40519-110

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full online product listings at ept.hotims.com

electronic products and technology • march-april 2012

Industrial Automation

Programming controllers:

C vs relay ladder logic By G. Young, customer support manager, Z-World

In today’s more sophisticated realm of programmable controllers, it is well worth the time invested to become a proficient C programmer. C can solve most programming problems and is supported on all major programming platforms. Ultimately, a good C programmer can write programs that out perform those of an equally competent programmer using RLL.

This paper examines two methods of programming embedded controllers and describes the benefits of using C-Language in industrial control applications.

The World of programmable controllers has become more sophisticated if not more complicated. No longer is it sufficient for a machine to endlessly perform the same series of actions. Systems now, in addition to performing repetitive tasks, must optimize procedures in order to maximize production while keeping basic statistics (a requirement of quality assurance). Moreover, many systems must interact with one or more third-party devices with interfaces that are alien to the controlling Programmable Logic Controller (PLC). Some systems must also interface with at least one enterprise-wide network that provides management with up-tothe-minute information. Relay Ladder Logic (RLL) was designed to provide more flexible software simulation that would replace the relays, timers, and counters common to control systems of the 1960s and 1970s. RLL has been successful in not only achieving, but in surpassing its modest goals. RLL is a powerful tool when applied to an application that performs specific tasks. However, RLL cannot meet the multiple challenges of today’s PLCs even though some RLLs have been retrofitted with features to handle more complicated application demands. At best, these enhancements are awkward and slow and are either difficult or nearly impossible to use. RLL is simply not suited for today’s more complicated industrial problems.

When programming in C, allocating memory is not a problem because the programmer is in control of how resources are allocated C, on the other hand, was designed to be a general purpose programming language. Not only does C dominate the development of applications for personal and corporate computing, it dominates the development of embedded systems. Therefore, C is used to program everything from word processors and databases to microwaves and TVs. In essence, C is everywhere. The reason for C’s popularity is its general-purpose nature. Because C makes no assumptions about its environment or what types of tasks it will perform, programs written in C use resources much more efficiently than equivalent RLL systems. Most PLCs

provide the user with a fixed number of devices such as auxiliary relays, registers, and timers. Eventually, every RLL programmer encounters a situation where a fixed allocation of assets is not acceptable for an application. For example, a particular application may only require a few auxiliary relays and timers, but requires more registers than an RLL application can make available. The most aggravating aspect of this scenario is that the PLC often has the needed memory, but has allocated that memory to unneeded auxiliary relays and timers. When programming in C, allocating memory is not a problem because the programmer is in control of how resources are allocated. As long as a programmer does not attempt to allocate more resources than available, C allows the programmer to decide how to use resources.

C can solve most programming problems and is supported on all major programming platforms

C and RLL Characteristics: C Programming Language • Programming flexibility provides many means to solve a problem. So many, in fact, that a novice often gets overwhelmed by the possibilities. • Ability to focus execution on a small section of code. Important for applications where certain functions are not done often enough or are skipped entirely. • Less intuitive for beginners and a little harder to learn than RLL. • A useful set of basics can be learned quickly, but the more complicated aspects of the language can be quite confusing even to programmers with moderate experience.

Relay Ladder Logic • So restrictive that the simplest problems often seem to solve themselves.

Another important advantage of C is its execution focus. RLL was written to simulate hardware’s inherently parallel operation. Parallel operation is accomplished by executing every 'rung' of the RLL program on each scan. While this achieves the desired results, it has one major drawback: scan times increase as the size and complexity of the program increases. When attempting to use RLL to perform complex tasks, scan times, which can increase to more than 10 milliseconds, are generally too slow for most applications. C, however, has a program counter that starts at the function main (the first function executed in any C program). The programmer counter works its way through the code, directed by flow control statements written by the programmer. A processor running a C program is executing only one sequence of instructions at a time. While one sequence of instructions is executed, the rest of the program is idle, waiting to execute the next set of instructions. This single execution focus gives the programmer incredible power to decide which aspects of the application need the most intense attention and which only need to be checked periodically. Without this control, handling high-speed events (such as deployment of an airbag) would be impossible.

• Executes every section with every scan. There is no chance of code not executing. • Can be learned relatively quickly. • Designed to perform a single task and performs that task well. For more information on programming embedded controllers in industrial control applications from Z World, go to http://ept.hotims.com/40519-112 Z-World is represented in Canada by Electromate Industrial Sales Ltd., Toronto

Handheld scopes ease viewing with color VGA display Models 100-MHz U1610A and 200-MHz U1620A handheld oscilloscopes include a color VGA display, with up to three viewing modes (indoor, outdoor and night vision). Units enable user to view signal waveforms by zooming in to capture glitches under all lighting conditions. The outdoor viewing mode, coupled with the 5.7-inch transflective display on these oscilloscopes, makes it possible to read waveforms even in bright sunlight. AGILENT TECHNOLOGIES

NEMA 4X IP 67 RoHS

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Compliant

M12 connectors come with 4 pin D-Coded M12 cables Metz Connect provides four pin D-Coded M12 cable assemblies and pcb receptacles for use in industrial Ethernet applications. Firm also provides CAT6A compliant, eight pin X-Type M12, which supports 10Gbps as per the IEEE 802.3an standard. This enhanced design M12 field plug includes an integrated IDC system that allows for multiple field terminations, while still providing an IP68 rating. The sleek two-piece zinc die-cast housing has knurled barrels for finger-friendly fastening. RIA CONNECT http://ept.hotims.com/40519-114

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9/29/06 1:21:25 PM

industrial automation

electronic products and technology • march-april 2012

Portable 115V/60Hz sine-wave inverter comes with built-in battery, charger CSI 100-24V-24AH-AA-PEL compact, portable sine-wave inverter with built-in battery bank and charger is suitable for operation in heavy-duty field-environments. Device provides a regulated pure sine-wave output voltage of 115Vac continuous at 60Hz. The built-in battery charger section operates from all typical ac voltages worldwide and provides 27.6V float voltage at 2A current to charge the 24V/24Ah battery bank. The charger can be kept on standby mode indefinitely, ensuring that the battery is continuously maintained. ABSOPULSE ELECTRONICS

http://ept.hotims.com/40519-115

Sensorless BLDC controller enhances diagnostics A4960three-phase, sensorless, brushless dc (BLDC) motor controller, for use with external N-channel power MOSFETs, is driven using block commutation (trapezoidal drive) where phase commutation is determined, without the need for independent position sensors, by monitoring the motor back-emf. A programmable motor start-up scheme allows device to be adjusted for a wide range of motor and load combinations. ALLEGRO

Connector strips place close together without degrading signal performance QRF8/QRM8 Series high speed 0,80mm (.0315+IB0) pitch Q Rate connector strips provide an industry standard ground/power plane that allows the Edge Rate contacts to be placed closer together without degrading signal performance. The result is a slim 5mm body design to help minimize pcb real estate for limited space applications. Product is available with up to 156 I/Os in 7mm and 10mm stack heights. SAMTEC

http://ept.hotims.com/40519-118

Piezoelectric sounders resolve key design challenges PKLCS family adds two SMD piezoelectric sounders at 2.4kHz for the portable, industrial, and automotive markets. The PKLCS1212E2400-R1 (consumer version) and PKLCS1212E24A1-R1 (automotive/industrial version) both have low profile surface mount packages, a 5dB increase in sound pressure level (verses firm+IBk-s PKLCS sounder at 2kHz), and are fully reflow solder compatible. MURATA ELECTRONICS http://ept.hotims.com/40519-119

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Custom transducers designed via online configurator MM Series of all 316L SS MicroMachined Silicon Pressure Transducers, can be ordered using firm+IBk-s custom delivery system that allows fast delivery. An On-line product configurator provides custom designs which allows the user to select specific features for the MM Series including the accuracy from 0.4 to 0.05+ACU-, range frpm 10 inH2O to 5000 psi, pressure fitting, output, temperature range and thermal accuracy. Shunt, CE or potentiometer options are also available. Gage, absolute, sealed gage, compound gage, vacuum, differential and barometric pressure ranges are available. OMEGA http://ept.hotims.com/40519-117 11:48 AM Why not try a different approach before you head to lunch?

1:03 PM Your second board is ready to test.

10:05 AM Your first board is ready to test.

newswatch

ECT launches Compliant Connector Group Everett Charles Technologies (ECT), Pomona CA, has unveiled the Compliant Connector Group (CCG) organized to provide flexible solutions for interconnect needs. CCG uses a range of compliant technologies, as well as conventional spring probe technologies to build custom connectors and pogo-based solutions to match customer specifications. The group supports both NPI and HVM applications. Machined bodies in a variety of materials are used for small run custom applications, while molded bodies are used for higher volume applications. Connector packaging can be optimized for downstream processes using tapeand-reel or other techniques. This highly interactive design phase from inception to volume production simplifies a ‘walkthrough’ approach to the end product.

Avnet rolls out Spartan-6 FPGA motor control dev kit Avnet Electronics Marketing, launches its latest development platform for designers implementing motor control systems, the Spartan®-6 FPGA Motor Control Development Kit. Designed in collaboration with Xilinx Inc., the Spartan-6 FPGA Motor Control Development Kit enables engineers to prototype motor control designs for applications in industrial automation, consumer electronics, medical diagnostics and robotics. The Spartan-6 FPGA Motor Control Development Kit is an ideal platform for designers seeking to experiment with proven reference designs and develop custom control, integrating flexible peripheral functions like Ethernet, PowerLink and PCI Express (PCIe).

Curtiss-Wright Controls forms defense group 3:14 PM

9:00 AM

After a few tweaks, you’re ready to make your finished board.

Your circuit design is done and you’re ready to make a prototype.

4:09 PM Your finished board is ready to go.

Curtiss-Wright Controls Inc. has launched its new Defense Solutions business group, supplier dedicated to Commercial-Off-The-Shelf (COTS) and open standards solutions to the defense and aerospace market. The new organization, headquartered in Ashburn VA, integrates the business operations of the Company’s former Electronic Systems and Embedded Computing business units. The Defense Solutions group (CWCDS) fortifies the firm’s ability to serve burgeoning opportunities for open-standards-based rugged computing, subsystem development and system integration in the Aerospace and Defense market. CWCDS combines the unmatched system engineering, programmatic expertise, system packaging and subsystem development of the Electronic Systems unit with the advanced COTS module design, thermal management, lifecycle maintenance and COTS subsystem development leadership of the Embedded Computing unit into a larger, streamlined and more agile business operation.

5:00 PM Nice work. You just shaved weeks off your development schedule.

CUSTOM LENS ASSEMBLIES

Universe designs and manufactures optical lenses for industrial, medical and electronics applications

ProtoMat® Benchtop PCB Prototyping Machine What would your day look like tomorrow if you could cut yourself free from the board house and produce true, industrial quality PCBs right at your desk? LPKF’s ProtoMat benchtop prototyping systems are helping thousands of engineers around the world take their development time from days and weeks to minutes and hours. In today’s race to market, it’s like having a time machine.

“You can’t beat an LPKF system for prototyping. We do up to three iterations of a design within a day.” Leonard Weber Agilent

Standard and custom precision lens assemblies for scanners, CCTV, CCD/CMOS, UV Quartz Infrared, medical imaging, surveillance systems, machine vision and night vision systems.

1000s of Lens Sizes in Stock. Most Lenses Ship Same Day.

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An Electrocomponents Company.

industrial automation

electronic products and technology • march-april 2012

Open pin field arrays maximize grounding, routing flexibility

Wireless industrial Ethernet modem drops into existing networks

SEARAY line of high speed, high density open pin field arrays maximize grounding and routing flexibility and provide Edge Rate contacts optimized for signal integrity. The .050" (1.27mm) pitch system is available with up to 500 I/Os in stack heights from 4mm to 40mm. A right-angle version is available for micro backplane applications and a press fit tail option provides greater system flexibility. The latest 0.80mm (.0315") pitch system offers up to a 50% board space savings with 7mm and 10mm stack heights. A low profile version is currently in development. SAMTEC

WI-MOD-E-G wireless Ethernet modem (2.4Ghz, Wi-Fi) can be easily dropped into any existing network, including wireless connections in process/automation applications connecting to PLCs, DCS/SCADA, data loggers or field instruments with an RS232/485 or Ethernet port/interface. Built around the 802.11b/g standard, unit has a throughput speed of up to 108Mbps, suitable for supporting vision and video applications. Product provides 400mW of transmit power (up to 10 times that of consumer/commercial grade wireless devices), so it can broadcast much more information over greater distances or through obstructions. WEIDMULLER http://ept.hotims.com/40519-124

http://ept.hotims.com/40519-120

Rugged, industrial-strength four port USB hub extends temperature operation

Isolated dc-dc converters deliver 334W/cubic in power density Picor Cool-Power PI3106 isolated dc-dc converters provide 334W/ cubic in power density and are half the size of conventional components. Device delivers 50W of output power (12V output at 4.2 Amps) in a tightly-integrated 0.87 x 0.65 x 0.265 inch, surface mount package offering unprecedented power density of 334W/cubic in. Combining isolation, voltage transformation and output regulation in a form factor less than half the size of a conventional isolated 1/16th brick and available in a wide 28V military input voltage range (16V to 50V) or narrow range 24V industrial input range (18V to 36V). VICOR

USB-104-HUB rugged, industrial-strength 4-port USB hub is small industrial/military grade and provides extended temperature operation (-40C to 85C), high retention USB connectors, and an industrial steel enclosure for shock and vibration mitigation. The OEM version (board only) is PC/104 sized and can easily be installed in new or existing PC/104-based systems as well. Product is easy to add as USB-based I/O to existing embedded system or to connect peripherals such as external hard drives, keyboards, GPS, wireless and more. ACCES I/O PRODUCTS http://ept.hotims.com/40519-125

http://ept.hotims.com/40519-121

Shielded connector optimizes performance through 18GHz

Factory integration software assists PS-series automated programmers

V-Bite RF edgeboard connectors include a bottomshielded female Type N part suitable for higher-power applications. The threaded RF device (part number 161VUS504EFT) provides a bottom shield to help eliminate inductance by shielding the open bottom of the connector. Device provides high manufacturing tolerances to ensure consistent performance characteristics through 18 GHz, and is to be soldered directly to the PC board’s bottom ground layer. BOMAR INTERCONNECT

Factory Integration Software (FIS) for firm's PS Series automated programming solutions with FIS helps manufacturers eliminate operator errors, reduce the risk of recalls and reduce programming costs. FIS Track and Remote modules easily interface with external software systems like MES (Manufacturing Execution Software). Product enables automated collection and export of programming results. This supports traceability, reduces the risk of recalls and enables decision making that minimizes scrap. DATA I/O

http://ept.hotims.com/40519-126

http://ept.hotims.com/40519-122

Rugged micro-connectors compact into shell styles from 9 to 51 contacts Micro-D Series connectors provide highly rugged and compact designs in shell styles from 9 to 51 contacts. Devices incorporate firm's one-piece flex pin design for greater shock and vibration resistance. The high-reliability gold plated flex pin deliver >2,000 mating cycles. Products operate from -55C to 125C. Upon request aluminum shell is available, with multiple plating options. OMNETICS

WAGO 3-phase power measurement module earns UL 508 750-493 3-Phase Power Measurement Module (3PMM) now carries UL 508. The drop-in module eliminates stand-alone monitoring components, cost-effectively supplying UL 508A industrial control panels with energy consumption and machine health data. Product's fieldbus-independent 750493 also simplifies data integration into Ethernet-based energy optimization plans via FTP Technology. WAGO http://ept.hotims.com/40519-127

http://ept.hotims.com/40519-123 HARTING-DC1-ad02-EPT_Layout 1 2/7/12 4:33 PM Page 1

new literature HARTINGsamples.ca for information

INTERCONNECT & HARDWARE Keystone Electronics 152-page full line Catalog M60 of interconnect components and electronic hardware, provides more than 1,000 new products covering every category of firm’s product line. EMX ENTERPRISES http://ept.hotims.com/40519-128

AUTOMOTIVE & INDUSTRIAL CATALOG Automotive and Industrial Catalog covers complete product descriptions and applications for firm’s general purpose replaceable and non-replaceable probes, as well as step, switch, high current/high-frequency and battery probes. EVERETT CHARLES TECHNOLOGIES http://ept.hotims.com/40519-129

AUTOMATION

HARTING.ca

Connect to Innovation Nation Inspired ideas come from technology partners who have the creativity and foresight to bring your ideas to life. That’s what drives our performance at HARTING — putting our best foot forward by connecting your needs with the right connectivity solution. If you can imagine it, HARTING has the breadth of board level and I/O solutions to connect it — as a standard or customized product. Order your FREE samples now. HARTINGsamples.ca.

New Horizons in Automation Version No. 30 free literature brochure contains more than 100 full color pages of the latest state-ofthe-art products from firm’s automation line: programmable logic controllers, smart relays, enclosures, process measurement and control devices, motion control sensors, human machine interface, pushbuttons, proximity sensors, relays and timers and wire connection. OMEGA http://ept.hotims.com/40519-130

http://ept.hotims.com/40519-29

full online product listings at ept.hotims.com

industrial automation

electronic products and technology • march-april 2012

CMC headers come equipped with press-fit terminals 154-circuit header in compliant-pin mount and 32- and 112-circuit solder-mount headers are CMC rated and perform in high-conductivity applications and harsh environments. The three-pocket, right-angle device with compliant-pin terminals improves productivity and reduces assembly costs by enabling a solderfree process, as opposed to conventional pressfit type mounting processes. Device provides 120 x 0.635mm (.025") signal pins, 24 x 1.50mm (.059") terminals and 10 x 2.80mm (.110") power pins, supporting high currents in applications such as large ECUs. The sophisticated and robust design of the integral guiding plate protects the 5 terminal rows and ensures positioning, while being able to withstand high-vibration levels up to 10G. MOLEX

Thermal wire stripper handles solid and stranded wires Model HTS1C Thermal Wire Stripper is lightweight and hand held for stripping solid and stranded wires. Product strips 1/2+ACI- to 43 AWG and can strip lengths from 0 to 2+ACI- and it comes with a removable length stop which is used when shorter strip lengths are needed. The temperature at the stripping elements is variable up to 594C. Device has a cradle switch+ADs- when the tool is placed in the cradle, heat to the elements is disconnected. HTS Series is especially effective on insulations such as P.T.F.E. and Teflon. ERASER CO. http://ept.hotims.com/40519-136

Optical cable system outperforms traditional copper cables

http://ept.hotims.com/40519-131

Circuit protectors receive ATEX explosion proof approval ESX10 and ESX10-T electronic circuit protectors are suitable for process control in the chemical, petroleum and gas industry, in addition to the Class 1, Div 2 approvals already in place. Both devices are product category 3G, meant for use in Ex zone 2. This is an area where, under normal operating conditions, a hazardous potentially explosive atmosphere with a mixture of air and flammable gas, vapour or mist will normally not occur or will occur or will occur for a short period of time. E-T-A CIRCUIT BREAKERS

QSFP+- Active Optical Cable System provides an optical engine that outperforms traditional copper cables in bandwidth, distance and cable density. The optical engine converts electrical signal to optical with four channels transmitting an aggregate bandwidth of 40 or 56Gbps. QSFPO Series lightweight cable system meets QSFP MSA form-factor specifications, is compliant to Infiniband and Ethernet protocols and provides a small 3mm diameter cable with lengths up to 100 meters. SAMTEC http://ept.hotims.com/40519-137

http://ept.hotims.com/40519-132

4-20mA option available in output Hall Effect precision sensors Spectrum Sensors line of H009 Hall Effect Position Sensors now provides a 4-20mA output option. Product's convert relative changes in a magnetic field into an electrical signal to provide position change information. Product's measure.875 inch in diameter with a .750 maximum length. They have a 12-bit resolution with a rotational life of over 100 million revolutions and feature an absolute linearity of ±0.1% at room ambient and ±0.3% at -40° to 125°C. API TECHNOLOGIES http://ept.hotims.com/40519-133

RJ45 industrial Ethernet connector system is IP67-Rated GM67X series IP67-rated RJ45 Industrial Ethernet Connector System combines the connective networking ease of the Ethernet connector system with industrial-rated protection. Device provides quick secure connections for any RJ45 application while safeguarding against harsh environmental influences such as dust and water to protect sensitive equipment. Popular applications include surveillance systems and outdoor telecommunications. KYCON

Panel-mount connectors come with dip solder contacts

Transceiver geared towards NFC capability in cars MLX90132 Transceiver IC for NFC is a 13.56MHz, fully integrated, multi-protocol RFID/NFC transceiver IC that supports ISO/ IEC protocols 18092, 14443A and B, 15693 as well as 18000-3. Device can handle subcarrier frequencies from 106 to 848kHz and baud rates up to 848kbit/s. The digital section of the device handles the low protocol layers from API to physical layer using advanced bit and frame decoding functions. Product embeds tag emulation functionality for NFC support. MELEXIS http://ept.hotims.com/40519-138

Series 820 and 870 connector family now includes addition of 7/8" panel-mount units with dip solder contacts, which can now be mounted to a pcb board. The receptacles are available in both male and female versions with 2+-PE, 4 and 4+-PE gold-plated contacts. Front- and rear-mountable positions allow for the receptacles to be mounted from the back or front of a panel. All versions have UL approval and an IP67 rating ensures connectors are protected while used in harsh environments. BINDER-USA http://ept.hotims.com/40519-139

http://ept.hotims.com/40519-134

Molded self-adhesive bumpers install easily Keystone Electronics M60 crack-resistant, molded Polyethylene, self-adhesive bumpers are equipped with high-strength adhesive backing to guard against vibration and slippage on equipment, chassis and panels. Easily installed, these new 'stick-on' bumpers firmly adhere to equipment surfaces while protecting internal components and preventing nicks, scratches and scuff marks. Available in black or clear rectangular (flat) or cylindrical (domed) shapes. Sizes from .250+IB0- to .500+IB0- diameters. EMX ENTERPRISES

The UniStrip 2300 stripping machine with touchscreen user interface offers the best price / performance ratio in its class. It is fully programmable and doesn’t require any mechanical adjustments when processing different wire sizes. It can strip wires ranging in size from 32 – 10 AWG and jacketed cables up to 0.22“ in diameter. This innovative machine combines precision mechanics, short cycle times and user-friendliness for increased productivity, making your ride to success a joy. High accuracy and repeatability of the programmed values make the UniStrip 2300 extremely reliable.

joy ride

Schleuniger, Inc. Manchester, NH | USA www.schleuniger-na.com/US2300_wcti (603) 668-8117

Innovators in Wire Processing

To Be Precise.

http://ept.hotims.com/40519-135

http://ept.hotims.com/40519-30

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expressmart / newswatch

electronic products and technology • march-april 2012

express

mart

Proof at 100%

InfiniiVision X-Series Oscilloscopes In Stock. Immediate Delivery!

Irwin industrial adds sales manager in east Electronic hardware distributor Irwin Industrial Ltd., Aurora ON, has added Michèle Couture as its regional sales manager responsible for eastern Canada. “Michèle is an important addition to our organization.” says Irwin’s director of sales, Trevor Sinclair. “She is a seasoned professional who has a proven ability track-record of providing creative solutions to her clients. We are delighted to have her with us.” Michèle will be based out of Irwin’s new Montreal-area facility, were she will work in close collaboration with account manager Mirko Tessari to support their client base in Quebec, Ottawa and the Maritimes. Established in 1970, Irwin Industrial is an ISO9000 supplier of electronic hardware and fasteners with warehouses in Alberta, Ontario, Quebec Irwin Industrial appointed Michèle Couture (centre) as its regional sales manager in eastern and New York. Canada. She is pictured here between account manager Mirko Tessari (left) and director of sales, Trevor Sinclair (right).

The InfiniiVision 3000 X-Series offers entry-level price points to fit your budget with superior performance and optional capabilities that are not available in any other oscilloscope in its class. Our break-through technology delivers more scope for the same budget.

S-P International appointment S-P International (SPI), Burnaby BC, has promoted Bryce Wassersleben to the position of to vice-president of sales and marketing. “Over the past five plus years Bryce has worked hard to understand and immerse himself into the Canadian electronic industry. He has effectively integrated himself into all facets of our business and has contributed greatly to our success and direction,” says SPI president Wilf Wassersleben.

New OLED DMM’s, and much more

www.gapwirelessonline.com Tel: 905.826.3781 info@gapwireless.ca http://ept.hotims.com/40519-31

EP&T is pleased to announce its 2012 series of EPTECH trade shows

AC Adapters Large inventory stocked in Burnaby, BC OEM, custom manufactured Available through distributors across Canada

AC/DC Switching Adapters Universal input voltage Compact, lightweight Wall mount style Compact Desktop style CEC, Energy star compliant Single output starting at 7.5W Regulated output with low ripple noise

Also available:

AC/DC Adapters RoHS COMPLIANT

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Test & Measurement Fans AC Adapters Tools Audio Video Accessories l

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ADVER TISERS’ INDEX

Absopulse Electronics Limited . . . . . . 16 Agilent Technologies Canada Inc. . . OBC Allied Electronics, Inc . . . . . . . . . . . . 27 Avnet Electronic Marketing . . . . . . . . 15 Carling Technologies Inc. . . . . . . . . . . 24 Conec Corp. . . . . . . . . . . . . . . . . . . . . 3 Digi-Key Corp . . . . . . . . . . . . . . . . . . . 5 EMX Enterprises Ltd. . . . . . . . . . . . . . 12 Fibox . . . . . . . . . . . . . . . . . . . . . . . . 25 Globetek . . . . . . . . . . . . . . . . . . . . . 16 Hammond Mfg. Co. . . . . . . 9 (insert), IBC Harting Canada Inc . . . . . . . . . . . . . . 28 Irwin Industrial Agencies Limited . . . . . 4 LPKF Laser & Electronics . . . . . . . . . . 26 Mega Electronics Inc. . . . . . . . . . . . . 18 Mouser Electronics . . . . . . . . . . . . . . . 7 Murata Power Solutions . . . . . . . . . . 14 NEWARK . . . . . . . . . . . . . . . . . . . . . . 21 Noritake . . . . . . . . . . . . . . . . . . . . . . . 6 ODU USA Inc. . . . . . . . . . . . . . . . . . . 11 Omega Engineering Inc. . . . . . . . . . . IFC Omnetics Conn. Corp. . . . . . . . . . . . . 18 Orion Fans . . . . . . . . . . . . . . . . . . . . . 8 Otto Engineering . . . . . . . . . . . . . . . . 23 Pioneer Magnetics . . . . . . . . . . . . . . . 10 Protocase . . . . . . . . . . . . . . . . . . . . . 17 Schleuniger . . . . . . . . . . . . . . . . . . . . 29 Schurter Inc. . . . . . . . . . . . . . . . . . . . 23 TDK- Lambda Americas Inc. . . . . . . . . . . . . . . . . 13 (insert), 19 Universe Kogaku America . . . . . . . . . 26

2012

RoHS COMPLIANT

The EPTECH Shows have thousands of

LEADING-EDGE PRODUCTS & SERVICES on display:

• Passives • Switches • Wire & Cable • ICs • Test Equipment • Data Acquisition • Electronic Components • E-Commerce • Industrial Electronics • Peripherals • Relays • Hardware • Semiconductors • Tools • Connectors • Batteries • CAE/CAD Systems • Sensors • Chemicals • RoHS Compliant Products ...and many more

NEW CALGARY March 6 • Glenmore Inn & Convention Centre VENUE EDMONTON March 8 • Mayfield Inn TORONTO/MARKHAM April 17 • Le Parc MONTREAL/POINTE CLAIRE April 19 • Holiday Inn Pointe-Claire Montréal Aéroport WINNIPEG May 15 • Hilton Suites Winnipeg Airport SASKATOON May 17 • Travelodge Hotel Saskatoon VANCOUVER/COQUITLAM June 20 • Red Robinson Show Theatre MISSISSAUGA September 27 • Mississauga Convention Centre QUEBEC CITY/STE. FOY October 23 • Hôtel Plaza Québec OTTAWA October 25 • Brookstreet Hotel

TECHNICAL SEMINAR Program at all venues! If you are an: • Engineer • Designer • Technician • Purchaser • Technical & Senior Management ... or are involved with electronics ...plan to attend NOW!

FREE Registration online at www.ept.ca/eptech/