VDE
MINIATURE POWER RELAY
DK-RELAYS
20
.787
12.5
.492
10
.394
20
.787
15
.591
10
.394
FEATURES
• Large capacity in small size: 10 A 250 V AC (1a)
• High sensitivity: 200 mW nominal operating power
• High breakdown voltage 4,000 Vrms between contacts and
coil 1,000 Vrms between open contacts Meeting FCC Part 68
• Sealed construction
• Latching types available
1a
1a1b
mm
inch
SPECIFICATIONS
Contact
Arrangement
Initial contact resistance, max.
(By voltage drop 6 V DC 1A)
Contact material
Nominal
switching capacity
Max. switching
power
Rating
(resistive)
Max. switching
voltage
Max. switching
current
Expected
life (min.
operations)
Mechanical
Electrical
(resistive)
5
Characteristics
1 Form A
30 m
Ω
Gold flash over silver alloy
10 A 250 V AC
8 A 250 V AC
10 A 30 V DC
8 A 30 V DC
300 W, 2,500 VA
250 V AC,
30 V DC
10 A
5
×
10
7
10
(10 A 250 V AC,
10 A 30 V DC)
10
(8 A 250 V AC,
8 A 30 V DC)
5
2 Form A,
1 Form A
1 Form B
Max. operating speed
Initial insulation resistance*
1
Between open
contacts
Between contacts
and coil
Surge voltage between coil and
contact*
3
Initial
breakdown
voltage*
2
Operate time*
4
(at nominal voltage)
Release time (without diode)*
4
(at nominal voltage)
Temperature rise
(at nominal voltage)
Shock
resistance
Vibration
resistance
Functional*
5
Destructive*
6
Functional*
7
Destructive
20 cpm (at rated load)
Min. 1,000 m
Ω
(at 500 V DC)
1,000 Vrms
4,000 Vrms
Min. 10,000 V
Max. 10 ms (Approx. 5 ms)
Max. 8 ms (Approx. 3 ms)
Max. 40
°
C with nominal coil voltage
and at 10 A switching current
Min. 98 m/s
2
{10 G}
Min. 980 m/s
2
{100 G}
88.2 m/s
2
{9 G}, 10 to 55 Hz
at double amplitude of 1.5 mm
176.4 m/s
2
{18 G}, 10 to 55 Hz
at double amplitude of 3.0 mm
–40
°
C to +65
°
C
–40
°
F to +149
°
F
5 to 85% R.H.
Approx. 5.6 g
.20 oz
Approx. 6 g
.21 oz
240 W, 2,000 VA
250 V AC,
30 V DC
8A
Coil
Nominal operating power
Remarks
* Specifications will vary with foreign standards certification ratings.
*
1
Measurement at same location as "Initial breakdown voltage" section
*
2
Detection current: 10 mA
*
3
Wave is standard shock voltage of
±
1.2
×
50
µ
s according to JEC-212-1981
*
4
Excluding contact bounce time
*
5
Half-wave pulse of sine wave: 11ms; detection time: 10
µ
s
*
6
Half-wave pulse of sine wave: 6ms
*
7
Detection time: 10
µ
s
*
8
Refer to 5. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT (Page 61).
200 mW
Conditions for oper- Ambient
ation, transport and temp.
storange*
8
(Not freezing and
Humidity
condensing at low
temperature)
1 Form A
Unit
1 Form A 1 Form B,
weight
2 Form A
TYPICAL
APPLICATIONS
• Switching power supply
• Power switching for various
OA equipment
• Control or driving relays for industrial
machines (robotics, numerical control
machines, etc.)
• Output relays for programmable logic
controllers, temperature controllers,
timers and so on.
• Home appliances
ORDERING INFORMATION
Ex. DK
1a
L2
12V
Contact arrangement
1a: 1 Form A
2a: 2 Form A
1a1b: 1 Form A 1 Form B
Operating function
Nil: Single side stable
L2: 2 coil latching
Coil voltage
3, 5, 6, 9, 12, 24V
Note: Standard packing Carton: 50 pcs.; Case: 500 pcs.
UL/CSA, TÜV approved type is standard.
239
DK
TYPES AND COIL DATA (at 20
°
C
68
°
F)
Single side stable
Nominal
voltage,
V DC
3
5
6
9
12
24
3
5
6
9
12
24
3
5
6
9
12
24
Pick-up
voltage,
V DC (max.)
2.1
3.5
4.2
6.3
8.4
16.8
2.1
3.5
4.2
6.3
8.4
16.8
2.1
3.5
4.2
6.3
8.4
16.8
Drop-out
voltage,
V DC (min.)
0.3
0.5
0.6
0.9
1.2
2.4
0.3
0.5
0.6
0.9
1.2
2.4
0.3
0.5
0.6
0.9
1.2
2.4
Nominal
operating
current,
mA (
±
10%)
66.6
40
33.3
22.2
16.6
8.3
66.6
40
33.3
22.2
16.6
8.3
66.6
40
33.3
22.2
16.6
8.3
Coil
resistance,
Ω
(
±
10%)
45
125
180
405
720
2,880
45
125
180
405
720
2,880
45
125
180
405
720
2,880
Nominal
operating
power,
mW
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
Maximum
allowable
voltage,
V DC (at 65
°
C
149°F)
3.9
6.5
7.8
11.7
15.6
31.2
3.9
6.5
7.8
11.7
15.6
31.2
3.9
6.5
7.8
11.7
15.6
31.2
Part No.
DK1a-3V
DK1a-5V
DK1a-6V
DK1a-9V
DK1a-12V
DK1a-24V
DK1a1b-3V
DK1a1b-5V
1 Form A DK1a1b-6V
1 Form B DK1a1b-9V
DK1a1b-12V
DK1a1b-24V
DK2a-3V
DK2a-5V
DK2a-6V
2 Form A
DK2a-9V
DK2a-12V
DK2a-24V
1 Form A
2 coil latching
Nominal
voltage,
V DC
3
5
6
9
12
24
3
5
6
9
12
24
3
5
6
9
12
24
Set voltage,
V DC (max.)
2.1
3.5
4.2
6.3
8.4
16.8
2.1
3.5
4.2
6.3
8.4
16.8
2.1
3.5
4.2
6.3
8.4
16.8
Reset voltage,
V DC (max.)
2.1
3.5
4.2
6.3
8.4
16.8
2.1
3.5
4.2
6.3
8.4
16.8
2.1
3.5
4.2
6.3
8.4
16.8
Nominal
operating
current,
mA (
±
10%)
Set
Reset
66.6
66.6
40
33.3
22.2
16.6
8.3
66.6
40
33.3
22.2
16.6
8.3
66.6
40
33.3
22.2
16.6
8.3
40
33.3
22.2
16.6
8.3
66.6
40
33.3
22.2
16.6
8.3
66.6
40
33.3
22.2
16.6
8.3
Coil
resistance,
Ω
(
±
10%)
Set
45
125
180
405
720
2,880
45
125
180
405
720
2,880
45
125
180
405
720
2,880
Reset
45
125
180
405
720
2,880
45
125
180
405
720
2,880
45
125
180
405
720
2,880
Nominal
operating
power,
mW
Set
Reset
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
Maximum
allowable
voltage,
V DC (at 65
°
C
149°F)
3.9
6.5
7.8
11.7
15.6
31.2
3.9
6.5
7.8
11.7
15.6
31.2
3.9
6.5
7.8
11.7
15.6
31.2
Part No.
DK1a-L2-3V
DK1a-L2-5V
DK1a-L2-6V
1 Form A
DK1a-L2-9V
DK1a-L2-12V
DK1a-L2-24V
DK1a1b-L2-3V
DK1a1b-L2-5V
1 Form A DK1a1b-L2-6V
1 Form B DK1a1b-L2-9V
DK1a1b-L2-12V
DK1a1b-L2-24V
DK2a-L2-3V
DK2a-L2-5V
DK2a-L2-6V
2 Form A
DK2a-L2-9V
DK2a-L2-12V
DK2a-L2-24V
240
DK
REFERENCE DATA
1. 1 Form A type
1. Maximum operating power
100
2. Life curve
1,000
3. Operate/Release time
Sample: DK1a-24V, 5 pcs.
9
8
Operate/release time, ms
Operate time
Contact current, A
Life,
×10
4
10
AC inductive load
(cosϕ = 0.4)
AC resistive load
7
6
5
4
3
2
1
100
250 V AC resistive load
30 V DC resistive load
1
DC inductive load
(L/R = 7 ms)
DC resistive
load
10
250 V AC inductive load (cosϕ = 0.4)
30 V DC inductive load (L/R = 7 ms)
Release time
(with diode)
Max.
x
Max.
x
Min.
Min.
Max.
x
Min.
Release time
80
90
10
110
120
130
140
Coil applied voltage,%V
0.1
10
100
Contact voltage, V
1,000
1
0
1
2
3
4
5
6
7
8
9
10
0
Contact voltage, V
4. Coil temperature rise (at 30
°
C
68
°
F)
Sample: DK1a-12V, 5 pcs.
5. Ambient temperature characteristics
Sample: DK1a-24V, 6 pcs
Ambient temperature: -40
°
C to +80
°
C
–40
°
F to
+176
°
F
Variation ratio, %
6. Operate/Release time (at 20
°
C
68
°
F)
Sample: DK1a-24V (50 pcs.)
30
Distribution frequency
130
120
110
Drop-out
voltage
Release time
Operate time
20
Coil temperature rise,
°C
50
40
30
20
10
10 A
7A
5A
0A
–40 –20
Pick-up
voltage
100
0
20 40 60 80
Ambient
90
temperature,°C
80
70
10
0
80
90
100 110 120 130
Coil applied voltage,%V
0
1
2
3
4
5
6
Operate/release time, ms
7. Contact resistance (at 20
°
C
68
°
F)
Sample: DK1a-24V (50 pcs.)
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Distribution frequency
1.5 2.5 3.5 4.5
2.0 3.0 4.0 5.0
Contact resistance, mΩ
2. 1 Form A 1 Form B type, 2 Form A type
1. Maximum operating power
2. Life curve
1,000
3. Operate/Release time (at 20
°
C
68
°
F)
Sample: DK1a1b-12V, 5 pcs.
9
8
Operate/release time, ms
Release time
(with diode)
Max.
x
Min.
Max.
x
Min.
Max.
x
Min.
Contact current, A
5
DC inductive load
(L/R = 7 ms)
DC resistive
load
Life,
×10
4
10
AC inductive load
(cosϕ = 0.4) AC resistive load
7
6
5
4
3
2
1
Release time
Operate time
100
250 V AC resistive load
30 V DC resistive load
10
250 V AC inductive load (cosϕ = 0.4)
30 V DC inductive load (L/R = 7 ms)
1
0.1
10
100
Contact voltage, V
1,000
1
0
1
2
3
4
5
6
7
8
9
10
0
80
90
10
110
120
130
140
Contact current, A
Coil applied voltage,%V
241
DK
4. Coil temperature rise
Sample: DK1a1b-12V, 5 pcs.
Ambient temperature: 20
°
C
68
°
F
Variation ratio, %
Pick-up
voltage
5. Ambient temperature characteristics
Coil temperature rise,
°C
50
40
30
20
10
0
8A
5A
0A
–40 –20
130
120
110
0 100
20
90
80
70
40
60
80
Ambient
temperature,°C
Drop-out
voltage
80
90
100 110 120 130
Coil applied voltage,%V
DIMENSIONS
1. 1 Form A type
Single side stable type
20
.787
12.5
.492
mm
inch
PC board pattern (Copper-side view)
2.54
.100
7.62
.300
7.62
.300
1.1 dia.
.043 dia.
Schematic
(Bottom view)
Single side stable
(Deenergized condition)
1
-
3
4
9.7
.382
3.5
.138
0.4
.016
10.16
.400
0.8
.031
7.62
.300
0.8
.031
1.11
.044
1.2
.047
10.16
.400
0.4
.016
10.16
.400
0.3
.012
+
6
2 coil latching type
20
.787
12.5
.492
2.54
.100
7.62
.300
7.62
.300
1.1 dia.
.043 dia.
2 coil latching
(Reset condition)
1
-
3
4
9.7
.382
3.5
.138
0.4
.016
2.54
.100
0.4
.016
7.62
.300
0.8
.031
7.62
.300
0.8
.031
1.11
.044
1.2
.047
10.16
.400
0.4
.016
10.16
.400
0.3
.012
+
6
+
5
The above shows 2 coil latching type.
No.5 terminal is eliminated on single side
stable type.
General tolerance:
±
0.3
±
.012
Tolerance:
±
0.1
±
.004
Since this is a polarized relay,
the connection to the coil
should be done according to
the above schematic.
2. 1 Form A 1 Form B type, 2 Form A type
Single side stable type
20
.787
9.7
.382
3.5
.138
0.8
.031
2.42
1.11
.044
.095
10.16
.400
15
.591
PC board pattern (Copper-side view)
10.16
.400
7.62
.300
1.1 dia.
.043 dia.
Schematic (Bottom view)
<1 Form A 1 Form B type>
Single side stable
(Deenergized condition)
1
-
3
4
2 coil latching
(Reset condition)
1
-
+
+
7
6
5
3
4
0.3
.012
0.4
.016
0.8
.031
10.16
.400
7.62
.300
10.16
.400
0.4
.016
+
8
6
5
8
2 coil latching type
20
.787
9.7
.382
0.3
.012
0.4
.016
2.54
.100
0.6
.024
7.62
.300
0.8
.031
7.62
.300
3.5
.138
0.8
.031
2.42
1.11
.044
.095
10.16
.400
15
.591
2.54
.100
7.62
.300
7.62
.300
1.1 dia.
.043 dia.
<2 Form A>
Single side stable
(Deenergized condition)
1
-
3
4
2 coil latching
(Reset condition)
1
-
+
+
7
6
5
3
4
10.16
.400
0.4
.016
+
8
6
5
8
Note:
Relay out-line and PC board pattern are common for both
1 Form A 1 Form B type and 2 Form A type.
Since this is a polarized relay, the connection
to the coil should be done according to the
above schematic.
General tolerance:
±
0.3
±
.012
Tolerance:
±
0.1
±
.004
242
DK
DK relay socket
TYPES AND RELAY COMPATIBILITY
Socket
Relay
Single side stable type
2 coil latching type
1 Form A 1 Form B Single side stable type
2 Form A
2 coil latching type
1 Form A
1 Form A
1 Form A 1 Form B, 2 Form A
Single side
2 coil
Single side
2 coil
stable type
latching type
stable type
latching type
DK1a-PS
DK1a-PSL2
—
—
—
DK1a-PSL2
—
—
—
—
DK2a-PS
DK2a-PSL2
—
—
—
DK2a-PSL2
SPECIFICATIONS
Breakdown voltage*
1
Insulation resistance
Heat resistance
Max. continuous current
Remarks
*
1
Detection current: 10 mA
4,000 Vrms (Except the portion between coil terminals)
Min. 1,000 mΩ (at 500 V DC)
150°C (for 1 hour)
10 A (DK1a-PS, DK1a-PSL2), 8 A (DK2a-PS, DK2a-PSL2)
DIMENSIONS
1 Form A type
15±0.6
.591±.024
mm
inch
1 Form A 1 Form B type, 2 Form A type
15±0.6
.591±.024
PC board pattern (Copper-side view)
1 Form A
1
2
3
4
1.2 dia.
.047 dia.
6
23±0.6
.906±.024
23±0.6
.906±.024
5
2.54
.100
2.54
.100
1 Form A 1 Form B
13.7±0.6
.539±.024
17±0.6
.669±.024
6±0.3
.236±.012
0.3±0.1
.012±.004
2.54±0.1
.100±.004
0.8
.031
7.62±0.3 7.62±0.3
.300±.012 .300±.012
3.4±0.3
.134±.012
0.25
.010
10.16±0.3
.400±.012
17±0.6
.669±.024
6±0.3
.236±.012
3.4±0.3
.134±.012
0.3±0.1
.012±.004
7.62±0.3 10.16±0.3
.300±.012 .400±.012
10.16±0.3
.400±.012
8
7
6
2.54
.100
5
2.54
.100
13.7±0.6
.539±.024
1
2
3
4
1.2 dia.
.047 dia.
The above shows 2 coil latching type. No.2 and 5
terminal are eliminated on single side stable type.
General tolerance:
±0.3
±.012
Tolerance:
±0.1
±.004
FIXING AND REMOVAL METHOD
1. Match the direction of relay
and socket.
2. Both ends of the relay are to
be secured firmly so that the
socket hooks on the top sur-
face of the relay.
3. Remove the relay, applying
force in the direction shown
below.
4. In case there is not enough
space to grasp relay with fin-
gers, use screwdrivers in the
way shown below.
GOOD
NO GOOD
NOTES
1. Phase synchronization of AC-load
switching
In case of switching the contact synchro-
nized with phase of load voltage, the life of
contact might be shorter or contact failure
might be caused. Please confirm this
matter in the actual system in this case. If
necessary, the phase control would be
recommended.
Ry
Load
Vin
Load
voltage
2. Soldering should be done under the fol-
lowing conditions:
250°C
482°F
within 10s
300°C
572°F
within 5s
350°C
662°F
within 3s
Load
voltage
Vin
For Cautions for Use, see Relay Technical Information (Page 48 to 76).
9/1/2000
All Rights Reserved, © Copyright Matsushita Electric Works,
243
Ltd.
Go To Online Catalog
京公网安备 11010802033920号
EEWORLD
