VD
E
1 FORM A
SLIM POWER RELAY
LD RELAYS (ALD)
FEATURES
7.0
20.3
.799
.276
1. Slim type:Width 7 mm .276 inch.
20.3(L)×7.0(W)×15.0(H) mm
4. High shock resistance
The relay withstands a functional shock
resistance of 300m/s2 [approx. 30 G
more]
15.0
.591
.799(L)×.276(W)×.591(H) inch
2. Perfect for small load switching of
home appliances
105 switching operations possible with a
3A 250V AC resistive load.
5. High insulation resistance
• Creepage distance and clearances
between contact and coil: Min. 6 mm .236
inch (In compliance with IEC65)
• Surge withstand voltage between
contact and coil: 10,000 V or more.
mm inch
3. Low operating power
Compact size, nominal operating power
as low as 200mW.
RoHS Directive compatibility information
6. UL/CSA, VDE,TÜV approved.
SPECIFICATIONS
Contact
Characteristics
Arrangement
1 Form A
Max. operating speed
20 cpm (at rated load)
Initial contact resistance, max.
(By voltage drop 6 V DC 1 A)
Initial insulation resistance*1
Min. 1,000 MΩ (at 500 V DC)
Max. 100 mΩ
AgSnO2 type
Between open
contacts
Initial*2
breakdown
750 Vrms for 1 min.
Contact material
3 A 277 V AC,
3 A 30V DC
Between contact and
coil
voltage
Nominal switching capacity
4,000 Vrms for 1 min.
831 V A (AC),
90W (DC)
Initial surge voltage between contact
and coil*3
Operate time*4 (at nominal voltage)
Release time (with diode)*4
(at nominal voltage)
Max. switching power
Rating
Min. 10,000 V
(resistive load)
Max. switching voltage
277 V AC, 30 V DC
3 A
Max. 10ms (at 20°C 68°F)
Max. 10ms (at 20°C 68°F)
Max. switching current
Min. switching capacity#1
Mechanical (at 180 cpm)
100 mA, 5 V DC
5×106
Max. 45°C with nominal coil
voltage and at 3 A contact
carrying current
(resistance method)
Min. 300 m/s2{approx. 30 G}
Temperature rise (at 70°C 158°F)
Expected life
(min.operations)
3A 125V AC,
3A 30V DC
Electrical
(at 20 cpm)
(at rated load)
2×105
3A 250V AC
105
Functional*5
Destructive*6 Min. 1,000 m/s2{approx. 100 G}
Shock resistance
Coil
10 to 55Hz
Functional*7
Nominal operating power
200 mW
at double amplitude of 1.5mm
#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.
Vibration resistance
10 to 55Hz
Destructive
at double amplitude of 1.5mm
Remarks
Conditions for operation, Ambient
–40°C to +70°C
* Specifications will vary with foreign standards certification ratings.
*1 Measurement at same location as “Initial breakdown voltage” section.
*2 Detection current: 10mA
transport and storage*8
(Not freezing and
condensing at low
temperature)
temp.
–40°F to +158°F
Humidity
5 to 85% R.H.
*3 Wave is standard shock voltage of 1.2×50ms 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
Unit weight
Approx. 4 g .14 oz
*7 Detection time: 10 µs
*8 Refer to 6. Conditions for operation, transport and storage mentioned in
TYPICAL APPLICATIONS ORDERING INFORMATION
• Air conditioner
Ex.
A
LD
1
12
W
• Refrigerator
• Hot water units
• Microwave ovens
• Fan heaters
Product name
LD
Contact arrangement
1: 1 Form A
Coil voltage (V DC)
Packing style
4H: 4.5, 09: 9 , 24: 24
Nil: Tube packing
W: Carton packing
05: 5,
06: 6,
12: 12
18: 18
UL/CSA, TÜV, VDE approved type is standard.
Note: Tube packing: Tube: 50pcs, Case: 1,000pcs
Carton packing: Carton: 100pcs, Case: 500pcs
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
LD (ALD)
Change of contact resistance
5-(1). Electrical life test
Change of pick-up and drop-out voltage
(3 A 250 V AC, resistive load)
100
90
80
70
60
50
40
30
20
10
0
100
90
Sample: ALD112, 6 pcs.
Operating speed: 20 cpm
Ambient temperature: room temperature
circuit:
80
70
Pick-up voltage
Max.
Min.
60
50
40
250V AC
12V DC
60Hz
30
Drop-out voltage
Max.
Min.
20
10
0
Max.
Min.
G
NO
COM
0
10
0
10
No. of operations, ×104
No. of operations, ×104
5-(2). Electrical life test
Change of pick-up and drop-out voltage
Change of contact resistance
(3 A 30 V DC, resistive load)
100
90
100
90
80
70
60
50
40
30
20
10
0
Sample: ALD112, 6 pcs.
Operating speed: 20 cpm
Ambient temperature: room temperature
circuit:
80
Pick-up voltage
Drop-out voltage
70
60
50
40
30
20
10
0
Max.
Min.
12V DC
30V DC
Max.
Min.
Max.
Min.
G
NO
COM
0
10
20
10
0
20
No. of operations, ×104
No. of operations, ×104
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
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