LF (ALF)
VDE
LF RELAYS (ALF)
20A POWER RELAY FOR HOME APPLIANCES
FEATURES 30.1 1.185
15.7 .618
15.7 .618
30.1 1.185
23.3 .917
23.3 .917
TMP type
PCB type mm inch
• Surge withstand voltage: Min. 10,000V 3. “PCB” and “TMP” types available 4. Conforms to the various safety standards: UL/CSA, TÜV, VDE approved
1. Ideal for compressor and inverter loads 1) Compressor load: 20A 250V AC 2) Inverter load: 20A 100V AC, 10A 200V AC 2. High insulation resistance • Creepage distance and clearances between contact and coil; Creepage Min. 9.5mm .374inch/ Clearance Min. 8mm .315inch
SPECIFICATIONS Contact Arrangement Initial contact resistance, max. (By voltage drop 6 V DC 1 A) Contact material Nominal switching capacity Max. switching power Rating Max. switching (resistive load) voltage Max. switching current Min. switching capacity#1 Mechanical (at 180 cpm) Expected life (min. operations) Electrical (at 20 cpm) (Resistive load)
Characteristics 1 Form A 100 mΩ Silver alloy 20 A 250V AC 6,250 V A 250V AC 25 A
Max. operating speed (at rated load) Initial insulation resistance*1 Between open contacts Initial breakdown Between contacts and voltage*2 coil Surge voltage between contact and coil*3 Operate time*4 (at nominal voltage) Release time (without diode)*4 (at nominal voltage)
100 mA, 5 V DC
105
Coil Nominal operating power
#1 This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load.
Remarks * Specifications will vary with foreign standards certification ratings. *1 Measurement at same location as “Initial breakdown voltage” section. *2 Detection current: 10mA *3 Wave is standard shock voltage of ±1.2 × 50µs according to JEC-212-1981 *4 Excluding contact bounce time. *5 Half-wave pulse of sine wave: 11 ms; detection time: 10 µs *6 Half-wave pulse of sine wave: 6 ms *7 Detection time: 10 µs *8 Refer to 6. Conditions for operation, transport and storage mentioned in AMBIENT ENVIRONMENT
TYPICAL APPLICATIONS
Approx. 15ms Approx. 15ms
5 to 85% R.H.
Vibration resistance Destructive Conditions for operation, transport and storage*8 (Not freezing and condensing at low temperature) Unit weight
Min. 10,000 V
Humidity
Functional*7 900 mW
5,000 Vrms for 1 min.
Ambient temp.
Functional*5 Destructive*6
Shock resistance
Min. 1,000 MΩ (at 500 V DC) 1,000 Vrms for 1 min.
Max. 45°C (resistance method, contact current 20 A, rated coil voltage, 60°C 140°F) Min. 100 m/s2{10 G} Min. 1,000 m/s2{100 G} 10 to 55Hz at double amplitude of 1.5mm 10 to 55Hz at double amplitude of 1.5mm –40°C to +60°C –40°F to +140°F
Temperature rise (at nominal voltage)
2 × 106
20 cpm
Approx. 23 g .81 oz
ORDERING INFORMATION
• Air conditioner • Refrigerators • OA equipment
Ex.
A
LF
1
T
12
Product Name
Contact arrangement
Terminal shape
LF
1: 1 Form A
T: TMP type P: PCB type
Note: Standard packing; Carton: 50 pcs. Case 200 pcs. UL/CSA,VDE, TÜV approved type is standard.
Coil voltage, V DC 05: 5 06: 6 09: 9
12: 12 18: 18 24: 24
LF (ALF) TYPES Contact arrangement
Coil voltage, V DC 5 6 9 12 18 24
1 Form A
TMP type
PCB type
ALF1T05 ALF1T06 ALF1T09 ALF1T12 ALF1T18 ALF1T24
ALF1P05 ALF1P06 ALF1P09 ALF1P12 ALF1P18 ALF1P24
COIL DATA Nominal voltage, V DC
Pick-up voltage, V DC (max.)
Drop-out voltage, V DC (min.)
Coil resistance, Ω(±10%)
5 6 9 12 18 24
3.5 4.2 6.3 8.4 12.6 16.8
0.5 0.6 0.9 1.2 1.8 2.4
27.8 40 90 160 360 640
Nominal operating current, mA (±10%) 180 150 100 75 50 37.5
Nominal operating power, W
Maximum allowable voltage, V DC
0.9
5.5 6.6 9.9 13.2 19.8 26.4
DIMENSIONS
mm inch
1. TMP type
PC board pattern (Bottom view) 11.25 .443
12.8 .504
#250 terminal
27.6 ±0.1 1.087 ±.004
6.4 .252
13.8 ±0.1 .543 ±.004
2.0 .079
a. di . 8 ia 1. 1 d 4 07 . 412.0 ±0.1 .472 ±.004
23.3 .917 0.5 .020
22.0 .866 27.6 1.087
12.0 ±0.1 .472 ±.004
10.0 ±0.1 .394 ±.004
Tolerance: ±0.1 ±.004
4.0 .157
12.0 .472
Schematic (Bottom view) FASTON 250
30.1 1.185 3 NO COM 4 15.7 .618 1
2
Dimension: Tolerance Max. 1mm .039 inch: ±0.1 ±.004 1 to 3mm .039 to .118 inch: ±0.2 ±.008 Min. 3mm .118 inch: ±0.3 ±.012
2. PCB type
NO
COM PC board side
PC board pattern (Bottom view) 27.6 ±0.1 1.087 ±.004 13.8 ±0.1 .543 ±.004
a. di . 8 ia 1. 1 d 4 07 . 4-
23.3 .917 0.5 .020
22.0 .866 27.6 1.087
12.0 .472
12.0 ±0.1 .472 ±.004
30.1 1.185 3 NO COM 4 15.7 .618 1
2
12.0 ±0.1 .472 ±.004
4.0 .157
Dimension: Tolerance Max. 1mm .039 inch: ±0.1 ±.004 1 to 3mm .039 to .118 inch: ±0.2 ±.008 Min. 3mm .118 inch: ±0.3 ±.012
10.0 ±0.1 .394 ±.004
Tolerance: ±0.1 ±.004
Schematic (Bottom view) NO
COM
LF (ALF) REFERENCE DATA Sample: ALF1T12, 6 pcs. Point measured: coil inside Contact current: 20A Ambient temperature: 25°C 77°F, 60°C 140°F
Temperature rise, °C °F
70 158
25°C 77°F 60°C 140°F
60 140
2-(1). 200V AC electrical life test (200V AC, inverter load) Sample: ALF1T12, 6 pcs. Load: Inrush 102A (wave peak value), Steady 14.4A (wave peak value) Inverter dummy 200V AC Switching frequency: ON 1s, OFF 5s Circuit:
12 Pick-up and drop-out voltage, V
1. Coil temperature rise
50 122 LF relay contact
40 104 30 86
200V AC 1.9Ω
20 68 10 50 0 32
2,000µF
100
10 Pick-up voltage
Max. x Min.
8
6 Drop-out voltage
Max. x
4
Min.
2
Switch
80
Contact welding: 0 times Miscontact: 0 times
0
120
0
3
6
No. of operations, ×104
Coil applied voltage, %V
2-(2). 100V AC electrical life test (100V AC, inverter load) Sample: ALF1T12, 6 pcs. Load: Inrush 224A (wave peak value), Steady 30.5A (wave peak value) Inverter dummy 100V AC Switching frequency: ON 1s, OFF 5s Circuit: LF relay contact 470µF 2,000µF
100V AC 470µF
Pick-up and drop-out voltage, V
12 Contact welding: 0 times Miscontact: 0 times
10 Pick-up voltage
8
Max. x
6
Min. Drop-out voltage
Max. x Min.
4
2
0
0
3
6
No. of operations, ×104
2-(3). Inrush 70.7A, Steady 20A, 250V AC electrical life test (Compressor dummy load)
2-(4). Electrical life test (20A 250V AC, resistive load)
Sample: ALF1T12, 3 pcs. Load: Inrush 70.7A, cosφ = 0.7 Steady 20A, cosφ 0.9 250V AC compressor dummy Switching frequency: ON 1.5s, OFF 1.5s Circuit:
Sample: ALF1T12, 6 pcs. Switching frequency: ON 1.5s, OFF 1.5s
Mg
250V AC
(–)
60Hz
12V DC SW1 (+)
Detection Circuit Contact Weld Min. 0.5s Miss Contact after 0.2s
12 Contact welding: 0 times Miscontact: 0 times
10
8 Pick-up voltage
Max. x Min.
6
4
Max. x Min.
Drop-out voltage
G 2
0
Pick-up and drop-out voltage, V
NO
Pick-up and drop-out voltage, V
COM
12
Contact welding: 0 times Miscontact: 0 times
10 Pick-up voltage
8
Max. x Min.
6 Drop-out voltage
Max. x
4
Min.
2
0
5 No. of operations,
10 ×104
For Cautions for Use, see Relay Technical Information
0
0
10 No. of operations, ×104
20