LA
VDE
2 Form A slim power relay
LA RELAYS
FEATURES
12.0
.472
24.0
.945
25.0
.984
mm inch
tween contact and coil: Min. 6 mm .236
inch(In compliance with IEC65)
• Surge withstand voltage between contact and coil: 10,000 V or more.
4. High noise immunity realized by the
card separation structure between
contact and coil
5. Conforms to the various safety standards
• UL/CSA, VDE, TÜV, SEMKO, SEV approved
1. 2 Form A slim type
24(L) × 12(W) × 25(H) mm
.945(L)×.472(W)×.984(H) inch
2. 3A type and 5A TV type
3A type: Contact reliability and break performance best suited for protecting and
switching speakers.
5A TV type: Tough against inrush current
and optimal for turning on and off the power supply. Rated TV-4 (UL/CSA).
3. High insulation resistance
• Creepage distance and clearances be-
SPECIFICATIONS
Contact
Characteristics
Type
Arrangement
Initial contact resistance, max.
(By voltage drop 6 V DC 1 A)
3A rated
5A TV rated
2 Form A
Contact material
Rating
(resistive
load)
Expected
life (min.
operations)
Max. 50 mΩ
Max. 100 mΩ
Gold-clad
silver alloy
Silver alloy
Nominal switching
3 A 125 V AC 5 A 277 V AC
capacity
Max. switching power
625 VA
1,385 V A
Max. switching voltage
125 V AC
277 V AC
Max. switching current
5 A (AC)
Mechanical (at 180 cpm)
106
Electrical (at 20 cpm)
5 × 104
(at rated load)
(ON: OFF=1.5s: 1.5s)
Type
Max. operating speed
Initial insulation resistance*1
Between contact sets
Initial *2
Between open contacts
breakdown
Between contact and
voltage
coil
Surge voltage between contact and
coil*3
Operate time*4 (at nominal voltage)
Release time (with diode)*4
(at nominal voltage)
Nominal operating power
530 mW
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 × 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
*7 Detection time: 10 µs
*8 Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT (Page 61).
Shock resistance
Functional*5
Destructive*6
Functional*7
Vibration resistance
Destructive
Conditions for operation,
transport and storage*8
(Not freezing and condensing at low temperature)
Unit weight
5A TV rated
20 cpm
Min. 1,000 MΩ (at 500 V DC)
1,000 Vrms for 1 min.
1,000 Vrms for 1 min.
4,000 Vrms for 1 min.
Min. 10,000 V
Max. 15ms (at 20°C 68°F)
Max. 15ms (at 20°C 68°F)
Max. 45°C
with nominal
coil voltage
and at 3 A
contact carrying current
Temperature rise (at 70°C)
Coil
3A rated
Ambient
temp.
Humidity
Air
pressure
Max. 45°C
with nominal
coil voltage
and at 5 A
contact carrying current
Min. 200 m/s2{approx. 20 G}
Min. 1,000 m/s2{approx. 100 G}
10 to 55Hz
at double amplitude of 1.5mm
10 to 55Hz
at double amplitude of 1.5mm
–40°C to +70°C
–40°F to +158°F
5 to 85% R.H.
86 to 106 kPa
Approx. 13 g .46 oz
ORDERING INFORMATION
Ex.
A
LA
2
P
F
12
Product name Contact arrangement Contact capacity Protective construction Coil voltage(V DC)
LA
2: 2 Form A
Nil: 3A
P: 5A TV-4
F: Flux-resistant type
12, 24
UL/CSA, VDE, TÜV, SEMKO, TV-4 approved type is standard.
Notes: 1. Standard packing Carton: 100 pcs. Case: 500 pcs.
2. 4.5V, 5V, 9V and 18V DC types are also available. Please consult us for details.
275
LA
TYPES AND COIL DATA (at 20°C 68°F)
Part No.
3 A type
5A TV type
Nominal
voltage,
V DC
ALA2F12
ALA2F24
ALA2PF12
ALA2PF24
12
24
Pick-up
voltage,
V DC (max.)
Drop-out
voltage,
V DC (min.)
Coil
resistance,
Ω (±10%)
(Initial) 9
(Initial) 18
(Initial) 0.6
(Initial) 1.2
272
1,087
Nominal
operating
current,
mA (±10%)
44.2
22.1
Nominal
operating
power,
mW
530
530
Maximum
allowable
voltage,
V DC
15.6
31.2
DIMENSIONS
mm inch
PC board pattern (Bottom view)
2-0.9 dia
2-.035 dia
15.0
.591
5.0
.197
Max. 25.0
.984
7.5
.295
0.5
.020
Tolerance : ±0.1 ±.004
4
.157
0.5
0.3
.020 .012
1.65
.065
Max. 24
5.0
.945
.197
15.0
.591
4-1.3 dia
4-.051 dia
Schematic (Bottom view)
0.4
.016
Max. 12
.472
1.0
.039
Dimension:
Max. 1mm .039 inch:
1 to 3mm .039 to .118 inch:
Min. 3mm .118 inch:
7.5
.295
1.0
.039
General tolerance
±0.1 ±.004
±0.2 ±.008
±0.3 ±.012
REFERENCE DATA
1. Max. switching power (AC resistive load)
2-(1). Life curve (250 V AC resistive load)
ALA2PF12
3
250V AC resistive load
10
10
ALA2F12
1
100
300
Contact voltage, V
0
1
2
3
3-(1). Coil temperature rise
3-(2). Coil temperature rise
Sample: ALA2F12, 6 pcs.
Measured portion: coil inside
Contact current: 0 A, 3A
Sample: ALA2PF12, 6 pcs.
Measured portion: coil inside
Contact current: 0 A, 5A
50
50
20°C 3A
20°C 0A
40
70°C 3A
70°C 0A
35
30
25
20
40
5
5
100
120
Coil applied voltage, %V
0
3
Contact current: ALA2F=3A
ALA2PF=5A
20
10
2
4. Ambient temperature characteristics and coil
applied voltage
25
15
80
1
Contact current, A
30
10
0
0
70°C 5A
70°C 0A
35
15
0
1
5
200
20°C 5A
20°C 0A
45
Temperature rise, °C
45
4
Contact current, A
Coil applied voltage, %V
0
Temperature rise, °C
125V AC resistive load
Life, ×104
5
Life, ×104
Contact current, A
100
100
10
276
2-(2). Life curve (125 V AC resistive load)
Allowable ambient temperatures
against % coil voltages
(max. inside the coil
temperature set as
115°C 239°F)
150
100
50
0
80
100
120
Coil applied voltage, %V
0
0
20
40
60
Ambient temperature, °C
80
LA
Change of pick-up and drop-out voltage
Circuit:
NO
COM
NO
COM
80
Pick-up voltage
5-(2). Electrical life test
(5 A 250 V AC, resistive load)
40
Drop-out voltage
NO
COM
NO
COM
Pick-up and drop-out voltage, %V
Contact
welding
detection
and Miscontacting
detection
circuit
Max.
x
Min.
20
2.5
No. of operations, ×104
5
Change of contact resistance
50
Pick-up voltage
60
Max.
x
Min.
40
40
Max.
30
x
Min.
20
Drop-out voltage
Max.
x
Min.
20
2.5
No. of operations, ×104
10
0
0
5
2.5
5
No. of operations, ×104
Change of pick-up and drop-out voltage
Pick-up and drop-out voltage, %V
Tested sample: ALA2PF12, 6 pcs.
• Overload test
Load: 6.0 A 120 V AC (60 Hz),
Inrush: 91 A
Operation frequency: 10 times/min
(ON: OFF = 1 s: 5 s)
No. of operations: 50 ope.
• Endurance test
Load: 4A 120 V AC (60 Hz),
Inrush: 65 A
Operation frequency: 10 times/min
(ON: OFF = 1 s: 5 s)
No. of operations: 25,000 ope.
30
0
0
5
80
0
0
G
5-(3). Electrical life test
(UL lamp load test TV-4)
2.5
No. of operations, ×104
40
10
100
Circuit:
12V DC
Max.
x
Min.
20
Change of pick-up and drop-out voltage
Sample: ALA2PF12, 6 pcs.
Operation frequency: 20 times/min.
(ON/OFF = 1.5s: 1.5s)
Ambient temperature: 20°C 68°F
250V AC
Max.
x
Min.
60
0
0
G
50
Contact resistance, mΩ
125V AC
Contact
welding
detection
and Miscontacting
detection
circuit
100
Change of contact resistance
50
100
80
Pick-up voltage
Max.
x
Min.
60
40
Drop-out voltage
Max.
x
Min.
20
0
0
2.5
No. of operations, ×104
Contact resistance, mΩ
12V DC
Change of contact resistance
Contact resistance, mΩ
Sample: ALA2F12, 6 pcs.
Operation frequency: 20 times/min.
(ON/OFF = 1.5s: 1.5s)
Ambient temperature: 20°C 68°F
Pick-up and drop-out voltage, %V
5-(1). Electrical life test
(3 A 125 V AC, resistive load)
40
30
20
Max.
10
x
Min.
0
0
2.5
No. of operations, ×104
For Cautions for Use, see Relay Technical Information (Page 48 to 76).
9/1/2000
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