Automation Controls Catalog
1a 8A, 1a1b/2a 5A
small polarized power
relays
3. High sensitivity
Using the same type of highperformance
polar magnetic circuits as DS relays, by
matching the spring load to the magnetic
force of attraction, greater sensitivity
has been achieved. The resultant pick
up sensitivity of about 190 mW makes
possible direct driving of transistors and
chips.
4. High breakdown voltage
Breakdown voltage has been raised by
keeping the coil and contacts separate.
Between contact and
coil
3,000 Vrms for 1 min.
5,000 V surge
breakdown voltage
Protective construction: Sealed type
FEATURES
1. Compact with high contact rating
Even with small 10 mm .394 inch (H) x
11 mm .433 inch (W) x 20 mm .787
inch (L) (dimensions, high capacity
switching is provided: 1a, 8 A 250 V
AC; 2a and 1a1b, 5 A 250 V AC.
2. High switching capability
High contact pressure, low contact
bounce, and wiping operation improve
resistance to weld bonding. Resistant
against lamp load and dielectric
loading: 1a achieves maximum
switching capacity of 2,000 VA (8A 250
V AC).
DSP RELAYS
TYPICAL APPLICATIONS
1. Office and industrial electronic
devices
2. Terminal devices of information
processing equipment, such as
printer, data recorder
3. Office equipment (copier, facsimile)
4. Measuring instruments
5. NC machines, temperature
controllers and programmable logic
controllers
Between contacts
1,000 Vrms for 1 min.
1,500 V surge
breakdown voltage
Conforms with FCC Part 68
5. Latching types available
6. Wide variation
Three types of contact arrangement
are offered: 1a, 2a, and 1a1b. In
addition, each is available in standard
and reversed polarity types.
7. Sealed construction allows
automatic washing
8. Complies with safety standards
Complies with Japan Electrical
Appliance and Material Safety Law
requirements for operating 200 V
power supply circuits, and complies
with UL, CSA, and TÜV safety
standards.
9. Sockets are available
ORDERING INFORMATION
DSP
Contact arrangement
1a :1 Form A
1 :1 Form A 1 Form B
2a : 2 Form A
Operating function
Nil:Single side stable
L2:2 coil latching
Nominal coil voltage(DC) Polarity
3, 5, 6, 9, 12, 24 V
Nil:Standard polarity
R :Reverse polarity
Contact material
• AgSnO2 type
F :1 Form A 1 Form B
Nil:1 Form A, 2 Form A
Notes:1. Reverse polarity types available(add suffix-R)
2. Certified by UL, CSA and TÜV
2019.03
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1
© Panasonic Corporation 2019
ASCTB180E 201903
DSP
TYPES
Contact
arrangement
1 Form A
1 Form A
1 Form B
2 Form A
Nominal coil
voltage
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
Single side stable
Part No.
DSP1a-DC3V
DSP1a-DC5V
DSP1a-DC6V
DSP1a-DC9V
DSP1a-DC12V
DSP1a-DC24V
DSP1-DC3V-F
DSP1-DC5V-F
DSP1-DC6V-F
DSP1-DC9V-F
DSP1-DC12V-F
DSP1-DC24V-F
DSP2a-DC3V
DSP2a-DC5V
DSP2a-DC6V
DSP2a-DC9V
DSP2a-DC12V
DSP2a-DC24V
2 coil latching
Part No.
DSP1a-L2-DC3V
DSP1a-L2-DC5V
DSP1a-L2-DC6V
DSP1a-L2-DC9V
DSP1a-L2-DC12V
DSP1a-L2-DC24V
DSP1-L2-DC3V-F
DSP1-L2-DC5V-F
DSP1-L2-DC6V-F
DSP1-L2-DC9V-F
DSP1-L2-DC12V-F
DSP1-L2-DC24V-F
DSP2a-L2-DC3V
DSP2a-L2-DC5V
DSP2a-L2-DC6V
DSP2a-L2-DC9V
DSP2a-L2-DC12V
DSP2a-L2-DC24V
Standard packing: Carton: 50 pcs.; Case: 500 pcs.
Note: Reverse polarity type are manufactured by lot upon receipt of order.
* Sockets available.
RATING
1.Coil data
• Operating characteristics such as ‘Operate voltage’ and ‘Release voltage’ are influenced by mounting conditions, ambient temperature, etc.
Therefore, please use the relay within ± 5% of rated coil voltage.
• ‘Initial’ means the condition of products at the time of delivery.
1) Single side stable
Nominal coil
voltage
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
Pick-up voltage
(at 20°C 68°F)
Drop-out voltage
(at 20°C 68°F)
80%V or less of
nominal voltage
(Initial)
10%V or more of
nominal voltage
(Initial)
Nominal coil
voltage
Set voltage
(at 20°C 68°F)
Reset voltage
(at 20°C 68°F)
3V DC
5V DC
6V DC
9V DC
12V DC
24V DC
80%V or less of
nominal voltage
(Initial)
80%V or less of
nominal voltage
(Initial)
Nominal operating
current
[±10%] (at 20°C 68°F)
100 mA
60 mA
50 mA
33.3mA
25 mA
12.5mA
Coil resistance
[±10%] (at 20°C 68°F)
30Ω
83Ω
120Ω
270Ω
480Ω
1,920Ω
Nominal operating
power
Max. applied voltage
(at 20°C 68°F)
300mW
130%V of
nominal voltage
2) 2 coil latching
Nominal operating
current
[±10%] (at 20°C 68°F)
Set coil
Reset coil
100 mA
100 mA
60 mA
60 mA
50 mA
50 mA
33.3mA
33.3mA
25 mA
25 mA
12.5mA
12.5mA
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2
Coil resistance
[±10%] (at 20°C 68°F)
Set coil
30Ω
83Ω
120Ω
270Ω
480Ω
1,920Ω
Reset coil
30Ω
83Ω
120Ω
270Ω
480Ω
1,920Ω
Nominal operating
power
Set coil
Reset coil
300mW
300mW
© Panasonic Corporation 2019
Max. applied voltage
(at 20°C 68°F)
130%V of
nominal voltage
ASCTB180E 201903
DSP
2. Specifications
Characteristics
Contact
Rating
Item
Arrangement
Contact resistance (Initial)
Contact material
Nominal switching capacity (resistive load)
Max. switching power (resistive load)
Max. switching voltage
Max. switching current
Nominal operating power
Min. switching capacity (Reference value)*1
Specifications
1 Form A 1 Form B
2 Form A
Max. 30 mΩ (By voltage drop 6 V DC 1A)
Au-flashed AgSnO2 type
8 A 250 V AC, 5A 30V DC
5 A 250 V AC, 5 A 30 V DC
2,000 VA, 150 W
1,250 VA, 150 W
250 V AC, 125 V DC (0.2 A)
8 A (AC), 5 A (DC)
5 A (AC, DC)
300 mW
10m A 5 V DC
Min. 1,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage”
section.
1,000 Vrms for 1min. (Detection current: 10mA.)
2,000 Vrms (1 Form A 1 Form B, 2 Form A) (Detection current: 10mA.)
3,000 Vrms for 1min. (Detection current: 10mA.)
1 Form A
Insulation resistance (Initial)
Breakdown voltage (Initial)
Electrical
characteristics
Between open contacts
Between contact sets
Between contact and coil
Surge breakdown voltage*2
between contacts and coil
(Initial)
Operate time [Set time] (at 20°C 68°F) (Initial)
Release time [Reset time] (at 20°C 68°F) (Initial)
Mechanical
characteristics
Expected life
Functional
Destructive
Functional
Destructive
Shock resistance
Vibration resistance
Mechanical
Electrical
Conditions for operation, transport and storage*3 (Not
freezing and condensing at low temperature)
Conditions
Max. operating speed
Unit weight
5,000 V
Max. 10 ms [10 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.)
Max. 5 ms [10 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.)
(without diode)
Min. 196 m/s2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs.)
Min. 980 m/s2 (Half-wave pulse of sine wave: 6 ms.)
10 to 55 Hz at double amplitude of 2 mm (Detection time: 10µs.)
10 to 55 Hz at double amplitude of 3.5 mm
Min. 5×107 (at 180 times/min.)
Min. 105 (resistive load)
Ambient temperature:
Ambient temperature:
Ambient temperature:
–40°C to +60°C
–40°C to +65°C
–40°C to +60°C
–40°F to +140°F
–40°F to +149°F
–40°F to +140°F
3 cps
Approx. 4.5 g .16 oz
Notes: *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.
*2. Wave is standard shock voltage of ±1.2×50μs according to JEC-212-1981
*3. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage
conditions in NOTES.
REFERENCE DATA
1. Max. switching capacity
2.-(1) Life curve (1 Form A 1 Form B)
2.-(2) Life curve (1 Form A 1 Form B)
DC resistive
load(1a)
1
DC resistive
load(1a1b, 2a)
0.1
10
100
Contact voltage(V)
265V・130V AC
(cosφ=1)
265V・130V AC
10 (cosφ=0.4)
1,000
Tested sample:DSP1a-12V DC, 5 pcs.
0
1
2
3
4
5
6
Switching capacity(A)
30
20
Tested sample:DSP1-12V DC, 5 pcs.
Tested sample:DSP2a-12V DC, 5 pcs.
100
120
Coil applied voltage(%V)
50
5A
0A
40
30
20
0
10
60
10
10
5A
50
0A
40
30
20
10
80
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30V DC
(L/R=7ms)
0.5
1
5
Switching capacity(A)
Temperature rise(℃)
0A
80
50
3.-(3) Coil temperature rise (2 Form A)
Temperature rise(℃)
8A
40
100
7
60
50
30V DC
resistive load
3.-(2) Coil temperature rise
(1 Form A 1 Form B)
60
Temperature rise(℃)
100
10
3.-(1) Coil temperature rise (1 Form A)
0
No. of operations(×10 4)
AC resistive
(1a1b,2a)
load
AC resistive
load(1a)
No. of operations(×10 4)
Contact current(A)
10
100
120
Coil applied voltage(%V)
3
0
© Panasonic Corporation 2019
80
100
120
Coil applied voltage(%V)
ASCTB180E 201903
DSP
4.-(1) Operate & release time
(without diode, 1 Form A)
4.-(2) Operate & release time
(without diode, 1 Form A 1 Form B)
Tested sample:DSP1a-12V DC, 5 pcs.
Tested sample:DSP1-12V DC, 5 pcs.
Operate time
4
Max.
3
Ave.
Min.
2
Release time
Max.
Ave.
Min.
1
80
6
5
Operate time
4
3
2
Release time
0
80
Max.
Ave.
Min.
Max.
Ave.
Min.
Operate time
4
Max.
Ave.
Min.
Max.
Ave.
Min.
3
2
Release time
Max.
Ave.
4
Min.
3
Max.
Ave.
2
Operate time
Min.
Release time
0
100
120
Coil applied voltage(%V)
5.-(1) Change of pick-up and drop-out voltage
(1 Form A)
Change rate to
nominal V(%V)
Tested sample:DSP1a-12V DC, 5 pcs.
ー60 ー40 ー20
80
20 40
ー10
Release voltage
Operate voltage
60 80 100
Ambient
(℃)
temperature
80
100
120
Coil applied voltage(%V)
ー60 ー40 ー20
0
ー10
7
6
Operate time
5
4
2
Release time
80
100
120
Coil applied voltage(%V)
Tested sample:DSP2a-12V DC, 5 pcs.
30
20
10
Operate voltage
Release voltage
20 40 60 80 100
Ambient
(℃)
temperature
ー60 ー40 ー20
Release voltage
ー30
ー30
Tested sample:DSP1-12V DC, 5 pcs.
Tested sample:DSP2a-12V DC, 5 pcs.
15
Operate voltage
15
A, C
relays
are not
energized
A, C
relays
are
energized
10
8
A B C
6
ℓ ℓ
4
Operate voltage
2
0
0
ー2
Release voltage
ー4
A, C
relays
are not
energized
A, C
relays
are
energized
A B C
10
Rate of change(%)
ℓ ℓ
Rate of change(%)
A B C
60 80 100
Ambient
(℃)
temperature
6.-(3) Influence of adjacent mounting
(2 Form A)
10
10
10
Operate voltage ー10
ー30
15
20
20 40
ー20
6.-(2) Influence of adjacent mounting
(1 Form A 1 Form B)
30
0
ー20
Tested sample:DSP1a-12V DC, 5 pcs.
Max.
Ave.
Min.
Max.
Ave.
Min.
3
ー20
6.-(1) Influence of adjacent mounting
(1 Form A)
Max.
Ave.
Min.
5.-(3) Change of pick-up and drop-out voltage
(2 Form A)
Tested sample:DSP1-12V DC, 5 pcs.
20
0
Release time
8
0
5.-(2) Change of pick-up and drop-out voltage
(1 Form A 1 Form B)
30
10
2
1
100
110
Coil applied voltage(%V)
Change rate to
nominal V(%V)
80
Max.
Ave.
Min.
3
9
1
1
4
Tested sample:DSP2a-12V DC, 5 pcs.
6
5
Operate time
5
Change rate to
nominal V(%V)
5
7
6
4.-(6) Operate & release time
(with diode, 2 Form A)
Operate and release time(ms)
6
Operate and release time(ms)
7
8
7
0
100
110
Coil applied voltage(%V)
9
8
8
1
Tested sample:DSP1-12V DC, 5 pcs.
9
Operate and release time(ms)
7
4.-(5) Operate & release time
(with diode, 1 Form A 1 Form B)
Tested sample:DSP1a-12V DC, 5 pcs.
Rate of change(%)
8
1
100
120
Coil applied voltage(%V)
4.-(4) Operate & release time
(with diode, 1 Form A)
5
9
Operate and release time(ms)
5
Operate and release time(ms)
Operate and release time(ms)
6
0
Tested sample:DSP2a-12V DC, 5 pcs.
9
7
0
4.-(3) Operate & release time
(without diode, 2 Form A)
5
ℓ ℓ
Operate voltage
15
A, C
relays
are not
energized
A, C
relays
are
energized
10
ー6
5
Release voltage
5
ー8
ー10
0
5
10
Inter-relay distance(ℓ), mm
1
2
3
4
5
6
Inter-relay distance(ℓ), mm
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Release voltage
0
© Panasonic Corporation 2019
5
10
Inter-relay distance(ℓ), mm
ASCTB180E 201903
DSP
DIMENSIONS (mm)
CAD The CAD data of the products with a “CAD” mark can be downloaded from our Website.
1. 1 Form A type
External dimensions
Single side stable
CAD
2 coil latching
20.2
10.5
10
10.5
10
11
11
20.2
7.62
4ー0.3
7.62
10.16
1.21
2 coil latching
10.16
7.62
7.62
7.62
4ー1.2dia.
Single side stable
2.54
2. 1 Form A 1 Form B type
Single side stable
+
2
1
1
8
5
(Reset condition)
2 coil latching
20.2
11
11
20.2
10.5
10
10.5
10
1.21
7.62
6ー0.3
7.62
1.21
7.62
7.62
General tolerance ±0.3
7.62
7.62
Single side stable
2.54
9
8
9
-
5
12
15 16
1
8
-
-
+
+
2
1
5
(Reset condition)
Tolerance ±0.1
External dimensions
Single side stable
CAD
2 coil latching
16
(Deenergized condition)
8ー1.2dia.
Tolerance ±0.1
3. 2 Form A type
12
+
7.62
6ー1.2dia.
7.62
Schematic (Bottom view)
2 coil latching
10.16
7.62
7.62
2.54
General tolerance ±0.3
PC board pattern (Bottom view)
Single side stable
8ー0.3
8ー0.8
10.16
3.5
3.5
-
+
5
External dimensions
2 coil latching
20.2
10.5
10
10.5
10
11
11
20.2
6ー0.8
1.21
7.62
6ー0.3
10.16
8ー0.8
7.62
3.5
3.5
-
+
Tolerance ±0.1
6ー0.8
1.21
7.62
7.62
General tolerance ±0.3
Single side stable
2 coil latching
10.16
7.62
7.62
2.54
6ー1.2dia.
Tolerance ±0.1
8ー0.3
7.62
Schematic (Bottom view)
Single side stable
9
12
16
-
2 coil latching
9
12
+
7.62
7.62
7.62
2.54
General tolerance ±0.3
PC board pattern (Bottom view)
8
5
1
(Deenergized condition)
8ー1.2dia.
8
5
15 16
-
-
+
+
2
1
(Reset condition)
Tolerance ±0.1
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15 16
(Deenergized condition)
6ー1.2dia.
CAD
2 coil latching
16
-
8
Tolerance ±0.1
7.62
0.3
General tolerance
Schematic
(Bottom±view)
7.62
7.62
2.54
7.62
7.62
±0.3
General
tolerance
PC board pattern
(Bottom
view)
Single side stable
6ー0.3
6ー0.8
3.5
3.5
4ー0.8
1.21
5
© Panasonic Corporation 2019
ASCTB180E 201903
DSP
SAFETY STANDARDS
Item
File No.
E43028
1 Form A
E43028
1 Form A
1 Form B
2 Form A
E43028
UL (Recognized)
Contact rating
8A 125/250V AC General use
1/6HP 125/250V AC
5A 30V DC Resistive
B300
5A 125/250V AC General use
1/6HP 125/250V AC
5A 30V DC Resistive
30W Max.: 1A 30V DC-0.24A
125V DC
5A 125/250V AC General use
1/10HP 125/250V AC
5A 30V DC Resistive
File No.
LR26550
LR26550
LR26550
CSA (Certified)
Contact rating
8A 125/250V AC General use
1/6HP 125/250V AC
5A 30V DC Resistive
B300
5A 125/250V AC General use
1/6HP 125/250V AC
5A 30V DC Resistive
30W Max.: 1A 30V DC-0.24A
125V DC
B300
5A 125/250V AC General use
1/10HP 125/250V AC
5A 30V DC Resistive
File No.
B 13 11
13461 342
TÜV (Certified)
Contact rating
8A 250V AC (cosφ =1.0)
5A 250V AC (cosφ =0.4)
5A 30V DC (0 ms)
B 13 11
13461 342
5A 250V AC (cosφ =1.0)
3A 250V AC (cosφ =0.4)
5A 30V DC (0 ms)
B 13 11
13461 342
5A 250V AC (cosφ =1.0)
3A 250V AC (cosφ =0.4)
5A 30V DC (0 ms)
* Remarks: The standard certified for may differ depending on where the product was manufactured.
NOTES
1. For cautions for use, please read
“GENERAL APPLICATION
GUIDELINES”.
2. Soldering conditions
Please obey the following conditions
when soldering automatically.
1) Preheating: Within 120°C 248°F and
within 120 seconds
2) Soldering iron: 260°C±5°C
500°F±41°F and within 6 seconds
3. Cleaning
For automatic cleaning, the boiling
method is recommended. Avoid
ultrasonic cleaning which subjects the
relays to high frequency vibrations, which
may cause the contacts to stick.
It is recommended that a fluorinated
hydrocarbon or other alcoholic solvents
be used.
4. External magnetic field
Since DSP relays are highly sensitive
polarized relays, their characteristics will
be affected by a strong external magnetic
field. Avoid using the relay under that
condition.
5. Coil operating power
Pure DC current should be applied to the
coil. The wave form should be
rectangular. If it includes ripple, the ripple
factor should be less than 5%.
However, check it with the actual circuit
since the characteristics may be slightly
different.
6. When using, please be aware that
the a contact and b contact sides of
1 Form A 1 Form B type may go on
simultaneously at operate time and
release time.
Please refer to "the latest product specifications"
when designing your product.
• Requests to customers :
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© Panasonic Corporation 2019
ASCTB180E 201903
DSP RELAYS
PC BOARD SOCKETS
ACCESSORIES
TYPES
Part No.
For Single side stable
For 2 coil latching
DSP1a-PS
DSP1a-PSL2
DSP2a-PS
DSP2a-PSL2
Product name
For DSP1a
For DSP1a, DSP1, DSP2a
Standard packing: Carton: 50 pcs.; Case: 500 pcs.
TYPES AND APPLICABLE RELAYS
Applicable
relays
DSP1a relays
DSP1a-L2 relays
DSP1 relays
DSP1-L2 relays
DSP2a relays
DSP2a-L2 relays
For DSP1a
Item
For DSP1a, DSP1, DSP2a
DSP1a-PS
DSP1a-PSL2
DSP2a-PS
DSP2a-PSL2
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
DIMENSIONS (mm)
Breakdown voltage
Insulation resistance
Heat resistance
Max. continuous current
CAD The CAD data of the products with a “CAD” mark can be downloaded from our Website.
External dimensions
CAD
Specifications
3,000 Vrms between terminals
(Except for the portion between coil terminals)
1,000 MΩ between terminals at 500 V
150°C 302°F for 1 hour
8 A (DSP1a-PS and DSP1a-PSL2),
5 A (DSP2a-PS and DSP2a-PSL2)
PC board pattern (Bottom view)
DSP1a-PS, DSP1a-PSL2
23±0.6
11±0.6
2 coil latching type only
2 coil latching type only
16
2 coil latching type only
8
5
7.62
10.16
7.62
2
1
2.54
Tolerance ±0.1
Note:Terminal No.2 and 15 are for
DSP1a-PSL2 only.
7.62
2.54
12 15
8
5
1.2dia.
2 coil latching type only
3.7
0.3±0.1
17±0.6
1.2dia.
5.7
4ー0.8±0.1
2.61
9
16
2.54
15
DSP2a-PS, DSP2a-PSL2
2.54
Type No.
SPECIFICATIONS
2
1
2.54
2 coil latching type only
Tolerance ±0.1
Note:Terminal No.2 and 15 are for
DSP2a-PSL2 only.
0.65±0.1
General tolerance ±0.3
FIXING AND REMOVAL METHOD
1. Match the direction of relay and socket.
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.
2. Both ends of relays are fixed so tightly
that the socket hooks on the top surface
of relays.
Notes: 1. Exercise care when removing relays. If
greater than necessary force is applied at
the socket hooks, deformation may alter the
dimensions so that the hook will no longer
catch, and other damage may also occur.
2. It is hazardous to use IC chip sockets.
2019.03
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© Panasonic Corporation 2019
ASCTB266E 201903
GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF RELAYS USAGE
For cautions for use, please read “GUIDELINES FOR RELAY USAGE”.
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
Precautions for Coil Input
Long term current carrying
Maximum allowable voltage and temperature rise
A circuit that will be carrying a current continuously for long periods
without relay switching operation. (circuits for emergency lamps, alarm
devices and error inspection that, for example, revert only during
malfunction and output warnings with form B contacts) Continuous,
long-term current to the coil will facilitate deterioration of coil insulation
and characteristics due to heating of the coil itself.
For circuits such as these, please use a magnetic-hold type latching
relay. If you need to use a single stable relay, use a sealed type relay
that is not easily affected by ambient conditions and make a failsafe
circuit design that considers the possibility of contact failure or
disconnection.
Proper usage requires that the rated coil voltage be impressed on the
coil. Note, however, that if a voltage greater than or equal to the
maximum continuous voltage is impressed on the coil, the coil may
burn or its layers short due to the temperature rise. Furthermore, do
not exceed the usable ambient temperature range listed in the catalog.
Operate voltage change due to coil temperature rise
(Hot start)
In DC relays, after continuous passage of current in the coil, if the
current is turned OFF, then immediately turned ON again, due to the
temperature rise in the coil, the pick-up voltage will become somewhat
higher. Also, it will be the same as using it in a higher temperature
atmosphere. The resistance/temperature relationship for copper wire
is about 0.4% for 1°C, and with this ratio the coil resistance increases.
That is, in order to operate of the relay, it is necessary that the voltage
be higher than the pick-up voltage and the pick-up voltage rises in
accordance with the increase in the resistance value. However, for
some polarized relays, this rate of change is considerably smaller.
DC Coil operating power
Steady state DC current should be applied to the coil. The wave form
should be rectangular. If it includes ripple, the ripple factor should be
less than 5%.
However, please check with the actual circuit since the electrical
characteristics may vary. The rated coil voltage should be applied to
the coil and the set/reset pulse time of latching type relay differs for
each relays, please refer to the relay's individual specifications.
Coil connection
When connecting coils of polarized relays, please check coil polarity
(+,-) at the internal connection diagram (Schematic). If any wrong
connection is made, it may cause unexpected malfunction, like
abnormal heat, fire and so on, and circuit do not work. Avoid
impressing voltages to the set coil and reset coil at the same time.
Ambient Environment
Dew condensation
Usage, Transport, and Storage Conditions
Condensation occurs when the ambient temperature drops
suddenly from a high temperature and humidity, or the relay is
suddenly transferred from a low ambient temperature to a high
temperature and humidity. Condensation causes the failures like
insulation deterioration, wire disconnection and rust etc.
Panasonic Corporation does not guarantee the failures caused
by condensation.
The heat conduction by the equipment may accelerate the
cooling of device itself, and the condensation may occur.
Please conduct product evaluations in the worst condition of
the actual usage. (Special attention should be paid when high
temperature heating parts are close to the device. Also please
consider the condensation may occur inside of the device.)
During usage, storage, or transportation, avoid locations
subjected to direct sunlight and maintain normal temperature,
humidity and pressure conditions.
Temperature/Humidity/Pressure
When transporting or storing relays while they are tube
packaged, there are cases the temperature may differ from the
allowable range. In this case be sure to check the individual
specifications. Also allowable humidity level is influenced by
temperature, please check charts shown below and use relays
within mentioned conditions. (Allowable temperature values
differ for each relays, please refer to the relay's individual
specifications.)
Icing
Condensation or other moisture may freeze on relays when the
temperature become lower than 0°C.This icing causes the sticking of
movable portion, the operation delay and the contact conduction failure
etc. Panasonic Corporation does not guarantee the failures caused by
the icing.
The heat conduction by the equipment may accelerate the cooling of
relay itself and the icing may occur. Please conduct product
evaluations in the worst condition of the actual usage.
Low temperature and low humidity
The plastic becomes brittle if the switch is exposed to a low
temperature, low humidity environment for long periods of time.
High temperature and high humidity
Storage for extended periods of time (including transportation periods)
at high temperature or high humidity levels or in atmospheres with
organic gases or sulfide gases may cause a sulfide film or oxide film to
form on the surfaces of the contacts and/or it may interfere with the
functions. Check out the atmosphere in which the units are to be
stored and transported.
1) Temperature:
The tolerance temperature range differs for each relays,
please refer to the relay’s individual specifications
2) Humidity:
5 to 85 % RH
3) Pressure:
86 to 106 kPa
Humidity, %R.H.
85
Allowable range
(Avoid icing
when used at
temperatures
lower than 0°
C)
5
–40
(Avoid
condensation
when used at
temperatures
higher than
0°
C)
0
Ambient temperature, °
C
85
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ASCTB412E 201903
GUIDELINES FOR POWER RELAYS AND HIGH-CAPACITY DC CUT OFF RELAYS USAGE
Package
In terms of the packing format used, make every effort to keep the
effects of moisture, organic gases and sulfide gases to the absolute
minimum.
Silicon
When a source of silicone substances (silicone rubber, silicone oil,
silicone coating materials and silicone filling materials etc.) is used
around the relay, the silicone gas (low molecular siloxane etc.) may be
produced.
This silicone gas may penetrate into the inside of the relay. When the
relay is kept and used in this condition, silicone compound may adhere
to the relay contacts which may cause the contact failure. Do not use
any sources of silicone gas around the relay (Including plastic seal
types).
NOx Generation
When relay is used in an atmosphere high in humidity to switch a load
which easily produces an arc, the NOx created by the arc and the
water absorbed from outside the relay combine to produce nitric acid.
This corrodes the internal metal parts and adversely affects operation.
Avoid use at an ambient humidity of 85%RH or higher (at 20°C). If use
at high humidity is unavoidable, please contact our sales
representative.
Others
Cleaning
1) Although the environmentally sealed type relay (plastic sealed type,
etc.) can be cleaned, avoid immersing the relay into cold liquid (such
as cleaning solvent) immediately after soldering. Doing so may
deteriorate the sealing performance.
2) Cleaning with the boiling method is recommended(The temperature
of cleaning liquid should be 40°C or lower ).
Avoid ultrasonic cleaning on relays. Use of ultrasonic cleaning may
cause breaks in the coil or slight sticking of the contacts due to
ultrasonic energy.
Please refer to "the latest product specifications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
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ASCTB412E 201903
2019
ASCTB180E-2 201903