DSP
SPECIFICATIONS (at 20°C 68°F)
8 A MINIATURE
POWER RELAY
IN DS RELAY SERIES
DSP RELAYS
FEATURES
•Power types added to DS relay series
•High switching capacity:
1a: 8 A 250 V AC /
1a1b, 2a: 5 A 250 V AC
• High sensitivity: 190 mW pick-up
power
• High contact welding resistance
• Latching types available
• High breakdown voltage 3,000 Vrms
between contacts and coil 1,000
Vrms between open contacts
Meeting FCC Part 68
• Sealed types are standard
About Cd-free contacts
We have introduced Cadmium free type
products to reduce Environmental
Hazardous Substances.
(The suffix “F” should be added to the
part number)
(Note: The Suffix “F” is required only for
1 Form A 1 Form B contact type.
The 1 Form A and 2 Form A contact type
is originally Cadmium free, the suffix “F”
is not required.)
Please replace parts containing
Cadmium with Cadmium-free products
and evaluate them with your actual
application before use because the life of
a relay depends on the contact material
and load.
DSP1a DSP1
DSP2a
20.2
.795
11.0
.433
10.5
.413
RoHS Directive compatibility information
http://www.nais-e.com/
mm inch
Contact
Coil (polarized) (at 20°C 68°F)
Note: All specifications are based on the condition of 25°C 77°F, 50% R.H. unless
otherwise specified.
#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.
*1Measurement at same location as “Initial breakdown voltage” section
*2Detection current: 10mA
*3Excluding contact bounce time
*4Half-wave pulse of sine wave: 11ms; detection time: 10µs
*5Half-wave pulse of sine wave: 6ms
*6Detection time: 10µs
*7Refer to 6. Conditions for operation, transport and storage mentioned in
AMBIENT ENVIRONMENT
Characteristics
Arrangement 1a 1a1b 2a
Contact material AgSnO2 type
Initial contact resistance, max.
(By voltage drop 6 V DC 1A) 30 mΩ
Nominal switching capacity
8A 250
VAC
5A 30
VDC
5A 250 VAC
5A 30 VDC
Rating
(resistive)
Max. switching power 2,000 VA
150 W
1,250 VA
150 W
Max. switching voltage 250 V AC, 30 V DC
Max. switching current 8 A 5 A
Min. switching capacity#1
10 mA, 5 V DC
Expected
life (min.
operations)
Mechanical
(at 180 cpm) 5×107
Electrical 105
Minimum operating
power
Single side stable 192 mW
2 coil latching 192 mW
Nominal operating
power
Single side stable 300 mW
2 coil latching 300 mW
Max. operating speed 30 cps. at rated load
Initial insulation resistance*1Min. 1,000 MΩ at 500 V DC
Initial
breakdown
voltage*2
Between open contacts 1,000 Vrms
Between contact sets 2,000 Vrms (1a1b, 2a)
Between contacts and
coil 3,000 Vrms
Surge voltage between contacts and
coil Min. 5,000 V
Set time*3 (at nominal voltage) Max. 10 ms (Approx. 5 ms)
Reset time*3 (at nominal voltage) Max. 10 ms (Approx. 4 ms)
Operate time*3 (at nominal voltage) Max. 10 ms (Approx. 5 ms)
Release time(without diode)*3
(at nominal voltage) Max. 5 ms (Approx. 4 ms)
Temperature rise Max. 40°C (1a1b type)
Max. 55°C (1a, 2a types)
Soldering temperature 250°C (10 s) 300°C (5 s),
350°C (3 s)
Shock
resistance
Functional*4Min. 196 m/s2 {20 G}
Destructive*5Min. 980 m/s2 {100 G}
Vibration
resistance
Functional*6117.6 m/s2 {12 G}, 10 to 55 Hz
at double amplitude of 2 mm
Destructive 205.8 m/s2 {21 G}, 10 to 55 Hz
at double amplitude of 3.5 mm
Conditions for operation, transport
and storage*7
(Not freezing and condensing at low
temperature)
–40°C to +65°C – 40°F 149°F
Unit weight Approx. 4.3 g .15 oz
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
DSP
TYPES AND COIL DATA (at 20°C 68°F)
Single side stable
2 coil latching
Notes: 1. Insert 1a, 1 or 2a in, 2 ❑ for contact form required.
2. The Suffix “F” is required only for DSP1-.
DIMENSIONS mm inch
Type Part No.
Nominal
voltage,
V DC
Pick-up
voltage,
V DC (max.)
Drop-out
voltage,
V DC (min.)
Nominal
operating
current, mA
Nominal
operating
power, mW
Coil
resistance,
Ω (±10%)
Max. allowable
voltage, at 50°C,
V DC
Single
side
stable
DSP❑-DC3V (-F) 3 2.4 0.3 100 300 30 3.9
DSP❑-DC5V (-F) 5 4.0 0.5 60 300 83 6.5
DSP❑-DC6V (-F) 6 4.8 0.6 50 300 120 7.8
DSP❑-DC9V (-F) 9 7.2 0.9 33.3 300 270 11.7
DSP❑-DC12V (-F) 12 9.6 1.2 25 300 480 15.6
DSP❑-DC24V (-F) 24 19.2 2.4 12.5 300 1,920 31.2
Type Part No.
Nominal
voltage,
V DC
Set voltage,
V DC (max.)
Reset
voltage,
V DC (max.)
Nominal
operating
current, mA
Nominal
operating
power, mW
Coil
resistance,
Ω (±10%)
Max. allowable
voltage, at 50°C,
V DC
2 coil
latching
DSP❑-L2-DC3V (-F) 3 2.4 2.4 100 300 30 3.9
DSP❑-L2-DC5V (-F) 5 4.0 4.0 60 300 83 6.5
DSP❑-L2-DC6V (-F) 6 4.8 4.8 50 300 120 7.8
DSP❑-L2-DC9V (-F) 9 7.2 7.2 33.3 300 270 11.7
DSP❑-L2-DC12V (-F) 12 9.6 9.6 25.5 300 480 15.6
DSP❑-L2-DC24V (-F) 24 19.2 19.2 12.5 300 1,920 31.2
TYPICAL APPLICATIONS
Office and industrial electronic devices
• Terminal devices of information
processing equipment, such as printer,
data recorder.
• Office equipment (copier, facsimile)
• Measuring instruments
• NC machines, temperature controllers
and programmable logic controllers.
ORDERING INFORMATION
Ex. DSP 1 L DC12V RF
Contact arrangement
1: 1a1b
1a: 1a
2a: 2a
Operating function
Nil: Single side
stable
L2: 2 coil latching
Coil voltage
DC: 3, 5, 6,
9, 12, 24 V
Polarity
Nil: Standard
polarity
R: Reverse
polarity
Contact material
• AgSnO2 type
F: 1a1b
Nil: 1a, 2a
(Notes) 1. Standard packing–Carton: 50 pcs.; Case: 500 pcs.
UL/CSA, VDE approved type is standard.
2. 1 coil latching type available.
3. Please inquire about the previous products (Cadmium containing parts).
(1 Form A 1 Form B type only)
1a type (DSP1a)
Single side stable
1 coil latching 2 coil latching
General tolerance: ±0.3 ±.012
0.8
.031
0.8
.031
0.3
.012
10.0
.394 10.5
.413
3.5
.138
1.0
.039
20.2
.795
7.62
.300
7.2
.283
1.21
.048
10.16
.400
0.8
.031
0.8
.031
0.3
.012
10.0
.394 10.5
.413
3.5
.138
1.0
.039
1.0
.039
20.2
.795
7.62
.300 7.62
.300
7.2
.283
1.21
.048
2.54
.100
0.3
.012
11.0
.433
7.62
.300
PC board pattern (Copper-side view)
Single side stable 2 coil latching
Tolerance: ±0.1 ±.004
2.54
.100
4-1.2 dia.
4-.047 dia.
2.54
.100
2.54
.100
6-1.2 dia.
6-.047 dia.
2.54
.100
Schematic (Bottom view)
Single side stable
(Deenergized condition)
2 coil latching
(Reset condition)
8 1
+
–
16
5 8 1
+
–
16
5 2
+
–
15
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DSP
REFERENCE DATA
1a1b type (DSP1)
Single side stable
1 coil latching 2 coil latching
General tolerance: ±0.3 ±.012
0.8
.031
0.8
.031
0.3
.012
10.0
.394 10.5
.413
3.5
.138
1.0
.039
20.2
.795
7.62
.300
7.2
.283
1.21
.048
10.16
.400
0.8
.031
0.8
.031
0.3
.012
10.0
.394 10.5
.413
3.5
.138
1.0
.039
1.0
.039
20.2
.795
7.62
.300 7.62
.300
7.2
.283
1.21
.048
2.54
.100
0.3
.012
11.0
.433
7.62
.300
PC board pattern (Copper-side view)
Single side stable 2 coil latching
Tolerance: ±0.1 ±.004
6-1.2 dia.
6-.047 dia.
2.54×3
.100×3
2.54×3
.100×3
2.54×4
.100×4
8-1.2 dia.
8-.047 dia.
2.54×3
.100×3
2.54×3
.100×3
2.54×3
.100×3
2.54
.100
Schematic (Bottom view)
Single side stable
(Deenergized condition)
2 coil latching
(Reset condition)
8 1
+
–
16
5
912
1
+
–
16
2
+
–
15
85
912
mm inch
2a type (DSP2a)
Single side stable
1 coil latching 2 coil latching
General tolerance: ±0.3 ±.012
0.8
.031
0.8
.031
0.3
.012
10.0
.394 10.5
.413
3.5
.138
1.0
.039
20.2
.795
7.62
.300
7.2
.283
1.21
.048
10.16
.400
0.8
.031
0.8
.031
0.3
.012
10.0
.394 10.5
.413
3.5
.138
1.0
.039
1.0
.039
20.2
.795
7.62
.300 7.62
.300
7.2
.283
1.21
.048
2.54
.100
0.3
.012
11.0
.433
7.62
.300
PC board pattern (Copper-side view)
Single side stable 2 coil latching
Tolerance: ±0.1 ±.004
6-1.2 dia.
6-.047 dia.
2.54×3
.100×3
2.54×3
.100×3
2.54×4
.100×4
8-1.2 dia.
8-.047 dia.
2.54×3
.100×3
2.54×3
.100×3
2.54×3
.100×3
2.54
.100
Schematic (Bottom view)
Single side stable
(Deenergized condition)
2 coil latching
(Reset condition)
8 1
+
–
16
5
912
1
+
–
16
2
+
–
15
85
912
1. Max. switching capacity 2.-(1) Life curve (1a1b type) 2.-(2) Life curve (1a1b type)
10
0.1 100 1000
Contact voltage, V
Contact current, V
1
10
DC resistive
load (1a)
DC resistive load
(1a1b,2a)
AC resistive
load (1a)
AC resistive
load
(1a1b,2a)
100
10
012 43765
Switching capacity, A
No. of operations, ×104
265 V·130 V AC cosϕ = 1
265 V·130 V AC
cosϕ = 0.4
100
50
10
0.5 1 105
Switching capacity, A
No. of operations, ×104
30 V DC L/R = 7 ms
30 V DC resistive
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
DSP
3.-(1) Coil temperature rise (1a type)
Sample: DSP1a-DC12V, 5 pcs.
3.-(2) Coil temperature rise (1a1b type)
Sample: DSP1-DC12V, 5 pcs.
3.-(3) Coil temperature rise (2a type)
Sample: DSP2a-DC12V, 5 pcs.
50
60
40
10
20
30
080 100 120
8A
0A
Coil applied voltage, %V
Coil temperature rise, °C
50
60
40
10
20
30
080 100 120
5A
0A
Coil applied voltage, %V
Coil temperature rise, °C
50
60
40
10
20
30
080 100 120
5A
0A
Coil applied voltage, %V
Coil temperature rise, °C
4.-(1) Operate & release time
(without diode, 1a type)
Sample: DSP1a-DC12V, 5 pcs.
4.-(2) Operate & release time
(without diode, 1a1b type)
Sample: DSP1-DC12V, 5 pcs.
4.-(3) Operate & release time
(without diode, 2a type)
Sample: DSP2a-DC12V, 5 pcs.)
80 100 120
4
3
2
1
0
5
6
7
Max.
x
Max.
Min.
Coil applied voltage, %V
Operate & release time, ms
x
Min.
Operate time
Release time
80 100 110
0
1
2
3
4
5
6
7
8
9
Max.
Min.
x
x
Max.
Min.
Coil applied voltage, %V
Operate & release time, ms
Operate time
Release time
80 100 120
0
1
2
3
4
5
6
7
8
9
Max.
Min.
x
x
Max.
Min.
Coil applied voltage, %V
Operate & release time, ms
Operate time
Release time
4.-(4) Operate & release time
(with diode, 1a type)
Sample: DSP1a-DC12V, 5 pcs.
4.-(5) Operate & release time
(with diode, 1a1b type)
Sample: DSP1-DC12V, 5 pcs.
4.-(6) Operate & release time
(with diode, 2a type)
Sample: DSP2a-DC12V, 5 pcs.
80 100 120
0
1
2
3
4
5
6
7
8
9
x
Min.
Max.
Min.
Coil applied voltage, %V
Operate & release time, ms
Operate time
Release time
Max.
x
80 100 110
0
1
2
3
4
5
6
7
8
9
Min.
Max.
Min.
Max.
x
Coil applied voltage, %V
Operate & release time, ms
Operate time
Release time
x
80 100 120
0
1
2
3
4
5
6
7
8
9
Max.
x
Min.
Coil applied voltage, %V
Operate & release time, ms
Operate time
Release time
Max.
Min.
x
5.-(1) Change of pick-up and drop-out voltage
(1a type)
Sample: DSP1a-DC12V, 5 pcs.
5.-(2) Change of pick-up and drop-out voltage
(1a1b type)
Sample: DSP1-DC12V, 5 pcs.
5.-(3) Change of pick-up and drop-out voltage
(2a type)
Sample: DSP2a-DC12V, 5 pcs.
–40 –20 0
20 40 60 80
50
–50
Ambient
temperature, °C
Pick-up voltage
Drop-out
voltage
(%)
Rate of change
–40 –20 0
20 40 60 80
50
–50
Ambient
temperature, °C
Pick-up voltage
Drop-out voltage
(%)
Rate of change
–40 –20 0
20 40
50
–50
Ambient
temperature, °C
Pick-up voltage
Drop-out
voltage
(%)
Rate of change
60 80
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
DSP
NOTES
For Cautions for Use, see Relay Technical Information
6.-(1) Influence of adjacent mounting
(1a type)
Sample: DSP1a-DC12V, 5 pcs.
6.-(2) Influence of adjacent mounting
(1a1b type)
Sample: DSP1-DC12V, 5 pcs.
6.-(3) Influence of adjacent mounting
(2a type)
Sample: DSP2a-DC12V, 5 pcs.
1050
5
10
15
5
10
15
Rate of change, %
A, C
relays
are not
energized
A, C
relays
are
energized
ABC
Pick-up voltage
Drop-out voltage
Inter-relay distance ( ), mm
12345 6
–8
–10
–6
–4
–2
0
0
2
4
6
8
10
Rate of change, %
A, C
relays
are not
energized
A, C
relays
are
energized
ABC
Pick-up voltage
Drop-out voltage
Inter-relay distance ( ), mm
1050
5
10
15
5
10
15
Rate of change, %
A, C
relays
are not
energized
A, C
relays
are
energized
ABC
Pick-up voltage
Drop-out voltage
Inter-relay distance ( ), mm
Soldering should be done under the
following conditions:
250°C 482°F within 10 s
300°C 572°F within 5 s
350°C 662°F within 3 s
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
DSP
DIMENSIONS mm inch
FIXING AND REMOVAL METHOD
SOCKETS FOR DSP RELAYS
SPECIFICATIONS
Item Specifications
Breakdown
voltage
3,000 Vrms between
terminals
(Except for the portion
between coil terminals)
Insulation
resistance
1,000 MΩ between
terminals at 500 V
Heat resistance 150°C for 1 hour
Max. continuous
current
1a: 8 A
2a: 5 A
TYPES AND APPLICABLE RELAYS
Type No.
Applicable relays
For DSP1a For DSP1a, DSP1, DSP2a
DSP1a-PS DSP1a-PSL2 DSP2a-PS DSP2a-PSL2
DSP1a relays OK OK OK OK
DSP1a-L2 relays OK OK
DSP1 relays OK OK
DSP1-L2 relays OK
DSP2a relays OK OK
DSP2a-L2 relays OK
5.7±0.3
.224±.012
17±0.6
.669±.024
11±0.6
.433±.024
23±0.6
.906±.024
0.3±0.1
.012±.004
7.62±0.3
.300±.012 10.16 ±0.3
.400±.012
0.8±0.1
.031±.004 0.65±0.1
.026±.004
7.62±0.3
.300±.012
2.54±0.3
.100±.012
3.7
.146
2.61
.103
PC board pattern (Copper-side view)
DSP1a-PS, DSP1a-PSL2
Te r minal No.2 and 15 are for
DSP1a-PSL2 only.
DSP2a-PS, DSP2a-PSL2
Te r minal No.2 and 15 are for
DSP2a-PSL2 only.
12
15 16
58
2.54
.100
2.54
.100
1.2 dia.
047 dia.
12
15 16
58
129
2.54
.100
2.54
.100
1.2 dia.
047 dia.
1. Match the direction of relay and socket.
2. Both ends of relays are fixed so surely
that the socket hooks on the top surface
of relays.
3. Remove the relay, applying force in the
direction shown below.
4. In case there is not enough space for
finger to pick relay up, use screw drivers
in the way shown below.
Good No good
All Rights Reserved © COPYRIGHT Matsushita Electric Works, Ltd.
