© Panasonic Corporation 2019
1
industrial.panasonic.com/ac/e/ ASCTB102E 201903
2019.03
ORDERING INFORMATION
TYPICAL APPLICATIONS
FEATURES
RA RELAYS (ARA)
1 GHz capable,
3 W carrying power
(at 1 GHz), 50Ω impedance
and 2 Form C relays
1. High frequency characteristics
(Impedance 50Ω, ~1.0GHz)
• Insertion loss; Max. 0.3dB
• Isolation; Min. 20dB
(Between open contacts)
Min. 30dB
(Between contact sets)
• V.S.W.R.; Max. 1.2
2. Surface mount terminal
This relay is a surface-mounted model
with excellent high-frequency
properties. In addition, it can use a
microstrip line in the base circuit
design which spares the labor of
machining the base.
3. Low prole small type
9.7(W)×14.7(L)×5.9(H) mm
.382(W)×.579(L)×.232(H) inch
Measurement market
Oscilloscope attenuator circuit
Communication market
Antenna switching, All types of wireless
devices
If you consider using applications with
low level loads or with high frequency
switching, please consult us.
Contact arrangement
2: 2 Form C
RA relays
ARA 2 0 A
Operating function
0: Single side stable
1: 1 coil latching
2: 2 coil latching
Type of operation
0: Standard type (B.B.M)
Coil voltage, V DC
1H: 1.5, 03: 3, 4H: 4.5, 05: 5, 06: 6, 09: 9, 12: 12, 24: 24, 48: 48
(H=0.5)
Terminal shape
A: Surface-mount terminal
Packing style
Nil:
X:
Z:
Tube packing
Tape and reel packing (picked from 1 pin side)
Tape and reel packing (picked from 10 pin side)
.579 .382
.232
14.7 9.7
5.9 4. High sensitivity: 140 mW nominal
operating power (Single side stable,
2 coil latching)
5. High contact reliability
Electrical life: Min. 107 (10mA 10V
DC)
Protective construction: Sealed type
mm inch
Automation Controls Catalog
RA (ARA)
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© Panasonic Corporation 2019 ASCTB102E 201903
RATING
1.Coil data
1) Single side stable
• Operating characteristics such as ‘Operate voltage’ and ‘Release voltage’ are inuenced 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.
2) 1 coil latching
Note: Tape and reel packing symbol “-Z” is not marked on the relay. “X” type tape and reel packing (picked from 1-pin side) is also available.
* Square, pulse drive (JIS C5442-1996)
TYPES
1. Tube packing
2. Tape and reel packing
Contact
arrangement Rated voltage Part No. Standard packing
Single side stable 1 coil latching 2 coil latching Tube Case
2 Form C
1.5 V DC ARA200A1H ARA210A1H ARA220A1H
40 pcs. 1,000 pcs.
3 V DC ARA200A03 ARA210A03 ARA220A03
4.5 V DC ARA200A4H ARA210A4H ARA220A4H
5 V DC ARA200A05 ARA210A05 ARA220A05
6 V DC ARA200A06 ARA210A06 ARA220A06
9 V DC ARA200A09 ARA210A09 ARA220A09
12 V DC ARA200A12 ARA210A12 ARA220A12
24 V DC ARA200A24 ARA210A24 ARA220A24
48 V DC ARA200A48
Contact
arrangement Rated voltage Part No. Standard packing
Single side stable 1 coil latching 2 coil latching Tape and reel Case
2 Form C
1.5 V DC ARA200A1HZ ARA210A1HZ ARA220A1HZ
500 pcs. 1,000 pcs.
3 V DC ARA200A03Z ARA210A03Z ARA220A03Z
4.5 V DC ARA200A4HZ ARA210A4HZ ARA220A4HZ
5 V DC ARA200A05Z ARA210A05Z ARA220A05Z
6 V DC ARA200A06Z ARA210A06Z ARA220A06Z
9 V DC ARA200A09Z ARA210A09Z ARA220A09Z
12 V DC ARA200A12Z ARA210A12Z ARA220A12Z
24 V DC ARA200A24Z ARA210A24Z ARA220A24Z
48 V DC ARA200A48Z
Rated voltage Pick-up voltage*
(at 20°C 68°F)
Drop-out voltage*
(at 20°C 68°F)
Rated operating current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)Rated operating power Max. allowable voltage
(at 20°C 68°F)
1.5 V DC
75%V or less of
rated voltage
(initial)
10%V or more
of rated voltage
(initial)
93.8 mA
16
Ω
140 mW 150%V of rated voltage
3
V DC 46.7 mA
64.3
Ω
4.5 V DC
31
mA
145
Ω
5
V DC 28.1 mA
178
Ω
6
V DC 23.3 mA
257
Ω
9
V DC 15.5 mA
579
Ω
12 V DC 11.7 mA
1,028
Ω
24 V DC 8.3 mA
2,880
Ω200 mW
48 V DC 6.3 mA
7,680
Ω300 mW 120%V of rated voltage
* Square, pulse drive (JIS C5442-1996)
Rated voltage Set voltage*
(at 20°C 68°F)
Reset voltage*
(at 20°C 68°F)
Rated operating current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)Rated operating power Max. allowable voltage
(at 20°C 68°F)
1.5 V DC
75%V or less of
rated voltage
(initial)
75%V or less of
rated voltage
(initial)
46.9 mA
32
Ω
70 mW 150%V of rated voltage
3
V DC 23.3 mA
128.6
Ω
4.5 V DC 15.6 mA
289.3
Ω
5
V DC
14
mA
357
Ω
6
V DC 11.7 mA
514
Ω
9
V DC 7.8 mA
1,157
Ω
12 V DC 5.8 mA
2,057
Ω
24 V DC 4.2 mA
5,760
Ω100 mW
3) 2 coil latching
* Square, pulse drive (JIS C5442-1996)
Rated
voltage
Set voltage*
(at 20°C 68°F)
Reset voltage*
(at 20°C 68°F)
Rated operating current
[±10%] (at 20°C 68°F)
Coil resistance
[±10%] (at 20°C 68°F)Rated operating power Max. allowable voltage
(at 20°C 68°F)
1.5 V DC
75%V or less of
rated voltage
(initial)
75%V or less of
rated voltage
(initial)
93.8 mA
16
Ω
140 mW 150%V of rated voltage
3
V DC 46.7 mA
64.3
Ω
4.5 V DC
31
mA
145
Ω
5
V DC 28.1 mA
178
Ω
6
V DC 23.3 mA
257
Ω
9
V DC 15.5 mA
579
Ω
12 V DC 11.7 mA
1,028
Ω
24 V DC 8.3 mA
2,880
Ω200 mW
RA (ARA)
3
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2. Specications
Note: * The upper operation ambient temperature limit is the maximum temperature that can satisfy the coil temperature rise value. Refer to “AMBIENT ENVIRONMENT” in
GENERAL APPLICATION GUIDELINES. Allowable temperature is from –40 to 70°C –40 to 158°F at our standard packing condition.
REFERENCE DATA
1-(1). High frequency characteristics (Impedance 50Ω)
Sample: ARA200A12
Measuring method: Measured by using our PC board for measurement and HP network analyzer (HP8753C).
• V.S.W.R. • Isolation
Characteristics Item Specications
Contact data
Arrangement 2 Form C
Contact resistance (initial) Max. 75mΩ (By voltage drop 6V DC 1A)
Contact material Stationary: AgPd + Au clad, Movable: AgPd
Contact rating (resistive) 10mA 10V DC, 1A 30V DC
Contact input power 3W (at 1GHz, impedance 50Ω, V.S.W.R. max.1.2)
Max. switching voltage 30V DC
Max. switching current 1A (DC)
High frequency
characteristics
(initial) (~1GHz,
Impedance 50Ω)
Isolation Between open contacts Min. 20dB
Between contact sets Min. 30dB
Insertion loss (without D.U.T. board’s loss) Max. 0.3dB
V.S.W.R. Max. 1.2
Insulation resistance (initial) Min. 100MΩ (at 500V DC, Measured portion is the same as the case of dielectric voltage.)
Breakdown voltage
(initial)
Between open contacts 750 Vrms for 1min. (detection current: 10mA)
Between contact sets 1,000 Vrms for 1min. (detection current: 10mA)
Between contact and coil 1,000 Vrms for 1min. (detection current: 10mA)
Between contact and earth terminal 1,000 Vrms for 1min. (detection current: 10mA)
Time
characteristics
Operate [Set] time (initial) Max. 4ms (Approx. 2ms) [Max. 4ms (Approx. 2ms)] (at 20°C 68°F, at rated voltage, without bounce)
Release [Reset] time (initial) Max. 4ms (Approx. 1ms) [Max. 4ms (Approx. 2ms)] (at 20°C 68°F, at rated voltage, without bounce,
without diode)
Mechanical
characteristics
Shock
resistance
Functional Min. 500 m/s2 (half-sine shock pulse: 11ms; detection time: 10µs)
Destructive Min. 1,000 m/s2 (half-sine shock pulse: 6ms.)
Vibration
resistance
Functional 10 to 55 Hz at double amplitude of 3mm (detection time: 10µs)
Destructive 10 to 55 Hz at double amplitude of 5mm
Expected life
Mechanical Min. 108 (at 180 cpm)
Electrical Min. 107 (at 20 cpm) (10mA 10V DC resistive)
Min. 105 (at 20 cpm) (1A 30V DC resistive)
Conditions Conditions for operation, transport and storage* Ambient temperature: –40°C to +85°C –40°F to +185°F
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Unit weight Approx. 2 g .07 oz
1.1
1.0
1.5
1.4
1.2
1.3
300kHz 0.5GHz 1.0GHz
COM-NO
COM-NC
Frequency
V.S.W.R.
0.8
1.0
0
0.2
0.6
0.4
0.3
300kHz 0.5GHz 1.0GHz
COM-NC
COM-NO
Insertion loss, dB
Frequency
80
100
0
20
30
60
40
300kHz 0.5GHz 1.0GHz
COM-NC
COM-NO
CONTACT sets
Isolation, dB
Frequency
• Insertion loss
RA (ARA)
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© Panasonic Corporation 2019 ASCTB102E 201903
A
9.70
0.25
12.90
14.30
Soldering with
PC board earth
(4 ribs)
14.70
2.54
0.50
5.90
7.62
11.50.5
.382
.010
.508
.563
.579
.100
.020
.232
.300
.453.020
DIMENSIONS (mm inch)The CAD data of the products with a CAD Data mark can be downloaded from https://industrial.panasonic.com/ac/e/
CAD Data
PC board pattern
Single side table
(Deenergized condition) (Reset condition)
Tolerance: ±0.3 ±.012
Tolerance: ±0.1 ±.004
Schematic (Top view)
12345
678910
Direction indication
12345
678910
1
01
2345
6789
1 coil latching 2 coil latching
(Reset condition)
1-(2). High frequency characteristics (Impedance 75Ω)
Sample: ARA200A12
Measuring method: Measured by using our PC board for measurement and HP network analyzer (HP8753C).
• V.S.W.R. • solation
80
100
0
20
30
60
40
300kHz 0.5GHz 1.0GHz
COM-NC
COM-NO
CONTACT sets
Isolation, dB
Frequency
• Insertion loss
COM-NC
COM-NO
1.0
Frequency
1.2
1.4
1.1
1.3
1.5
300kHz 0.5GHz 1.0GHz
V.S.W.R.
1.0
Frequency
0.6
0.2
0.8
0.4
0
300kHz 0.5GHz 1.0GHz
Insertion loss, dB
2.00
.079
.012
0.3
14.0
.551 .100
2.54
.039
1.0
Earth
For glue pad
.079
2.0
.116
2.94
14.90
.587
12.40
.488
12.50
.492
8.90
.350 9.56
.376
RA (ARA)
5
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industrial.panasonic.com/ac/e/ © Panasonic Corporation 2018 ASCTB102E 201903
NOTES
1. 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 di󰀨erent. The nominal operating voltage should
be applied to the coil for more than 10 ms to set/reset the
latching type relay.
2) IR (infrared reow) soldering method
2. Coil connection
When connecting coils, refer to the wiring diagram to prevent
mis-operation or malfunction.
3. External magnetic eld
Since RA relays are highly sensitive polarized relays, their
characteristics will be a󰀨ected by a strong external magnetic
eld. Avoid using the relay under that condition.
4. 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 alcoholic solvents be used.
5. Tape and reel packing
1) Tape dimensions
Max. 5°
12.30
.484
16.0
.630
2.0
.079 4.0
.157
11.5
.453
0.4
.016
15.2
.598 6.40.2
.252.008
24.00
.945
RA relay (10.75)
(.423)
1.75
.069
1.5+0.1
0
.059
dia.
dia.
+.004
0
(General tolerance: ±0.1 ±.004)
2) X type, Z type
Tape coming out direction
Relay polarity bar
X: Picked from 1 pin
Z: Picked from 10 pin
3) Dimensions of plastic reel
24.4+2.0
0
.961+.079
0
2.0±0.2
.079±.008
13±0.2 dia.
.512±.008 dia.
.827±.031 dia.
21±0.8 dia.
80±1 dia.
3.150±.039 dia.
330±2 dia.
12.992±.079 dia.
.079±.020
2.0±0.5
6. Soldering
Manual soldering shall be performed under following condition.
Tip temperature: 280°C to 300°C 536°F to 572°F.
Wattage: 30 to 60W
Soldering time: within 5s
In case of automatic soldering, the following conditions should
be observed
1) Position of measuring temperature
Surface of PC board where relay is mounted.
Temperature rise of relay itself may vary according to the
mounting level or the heating method of reow equipment.
Therefore, please set the temperature of soldering portion of
relay terminal and the top surface of the relay case not to
exceed
the above mentioned soldering condition.
It is recommended to check the temperature rise of each
portion
under actual mounting condition before use.
The soldering earth shall be performed by manual soldering.
7. Conditions for operation, transport and storage
conditions
1) Ambient temperature, humidity, and atmospheric pressure
during usage, transport, and storage of the relay:
(1) Temperature:
–40 to +85°C –40 to +185°F
(2) Humidity: 5 to 85% RH
(Avoid freezing and condensation.)
The humidity range varies with the temperature. Use within
the
range indicated in the graph below.
(3) Atmospheric pressure: 86 to 106 kPa
Temperature and humidity range for usage, transport, and
storage:
85
5
Humidity, %RH
Tolerance range
(Avoid
condensation
when used at
temperatures
higher than
0°C 32°F)
(Avoid freezing
when used at
temperatures
lower than
0°C 32°F)
850–40 +185+32–40
Temperature, °C °F
2) Condensation
Condensation forms when there is a sudden change in
temperature under high temperature and high humidity
conditions. Condensation will cause deterioration of the relay
insulation.
3) Freezing
Condensation or other moisture may freeze on the relay when
the temperature is lower than 0°C 32°F. This causes problems
such as sticking of movable parts or operational time lags.
4) Low temperature, low humidity environments
The plastic becomes brittle if the relay is exposed to a low
temperature, low humidity environment for long periods of time.
t1t2
T3
T2
T1
T1 = 150 to 180°C
T2 = 230°C
T3 = Within 250°C
302 to 356°F
446°F and higher
482°F
t1 = 60 to 120 sec.
t2 = Within 30 sec.
RA (ARA)
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© Panasonic Corporation 2019 ASCTB102E 201903
8. Measuring method (50Ω type)
Please refer to "the latest product specications"
when designing your product.
• Requests to customers :
https://industrial.panasonic.com/ac/e/salespolicies/
Connect connectors 1 and 2 respectively to PORT1 and PORT2.
Perform calibration using the 3.5 mm .138 inch calibration kit
(HP85033C).
Material; Glass PTFE
R-4737 (manufactured by our company)
Board thickness; t = 0.8mm .031inch
Copper planting thickness; 18μm (Double sided)
Connector (SMA type)
Product name; R125 403 (RADIALL)
Insertion loss compensation; The insertion loss of relay itself is
given by subtracting the insertion loss of short-circuit the Com
and the NC (or NO). (signal path and two connectors)
No. Product name Contents
1
HP 11857D 7mm Test port, Extension cable, (APC7connector)
2
HP 11533A Adapter, APC7-SMA (Male)
After calibration, connect the D.U.T board and measure.
D.U.T. board
Dimensions (mm inch)
Network
Analyzer
S Parameter
Testset
HP 85047AHP 8753C
21
21
PORT1
PORT2
RF
OUT
R
A
B
RF
IN
R
A
B
.866
.787
.630
.551
.394
22.0
20.0
16.0
14.0
10.0
5.08
.200
45°
.079
2.0
4.0
2.0
.157
.079
SMA connector to be soldered
25.0
.984
20.0
.787
10.16
.400
2.00
.079
6.0
.236 8.0
.315 12.5
.492
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c
GUIDELINES FOR MICROWAVE DEVICES USAGE
Precautions for Coil Input
For cautions for use, please read “GUIDELINES FOR RELAY USAGE”.
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
Long term current carrying
A circuit that will be carrying a current continuously for long periods
without relay or microwave device 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 a󰀨ected by ambient conditions and make a failsafe
circuit design that considers the possibility of contact failure or
disconnection.
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 di󰀨ers for
each relays, please refer to the relay's individual specications.
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, re and so on, and circuit do not work. Avoid
impressing voltages to the set coil and reset coil at the same time.
Maximum allowable voltage and temperature rise
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.
Maximum allowable voltage for coil
In addition to being a requirement for relay operation stability, the
maximum continuous impressed coil voltage is an important constraint
for the prevention of such problems as thermal deterioration or
deformity of the insulation material, or the occurrence of re hazards.
Temperature rise due to pulse voltage
When a pulse voltage with ON time of less than 2 minutes is used, the
coil temperature rise bares no relationship to the ON time. This varies
with the ratio of ON time to OFF time, and compared with continuous
current passage, it is rather small. The various relays are essentially
the same in this respect.
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.
Current passage time (%)
For continuousu passage Tempereture rise value is
100
%
ON : OFF =
3
:
1
About
80
%
ON : OFF =
1
:
1
About
50
%
ON : OFF =
1
:
3
About
35
%
ON : OFF = 1 : 1
Voltage
Time
Ambient Environment
Dew condensation
Condensation occurs when the ambient temperature drops suddenly
from a high temperature and humidity, or the relay and microwave
device 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.)
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 sulde gases may cause a sulde lm or oxide lm 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.
Package
In terms of the packing format used, make every e󰀨ort to keep the
e󰀨ects of moisture, organic gases and sulde gases to the absolute
minimum.
ASCTB403E 201905
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c
GUIDELINES FOR MICROWAVE DEVICES USAGE
Storage requirements
Since the SMD type is sensitive to humidity it is packaged with tightly
sealed anti-humidity packaging. However, when storing, please be
careful of the following.
1) Please use promptly once the anti-humidity pack is opened.(within
72 hours, Max. 30°C/70% R.H.). If left with the pack open, the relay
will absorb moisture which will cause thermal stress when reow
mounting and thus cause the case to expand. As a result, the seal
may break.
* For RE relays, after this bag is opened, the product must be used
within 24 hours.
2) If relays will not be used within 72 hours, please store relays in a
humidity controlled desiccator or in an anti-humidity bag to which
silica gel has been added.
* If the relay is to be soldered after it has been exposed to excessive
humidity atmosphere, cracks and leaks can occur. Be sure to mount
the relay under the required mounting conditions
* For RE relays, after this bag is opened, the product must be used
within 24 hours.
3) The following cautionary label is a󰀩xed to the anti-humidity pack.
Silicon
When a source of silicone substances (silicone rubber, silicone oil,
silicone coating materials and silicone lling 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 a󰀨ects 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) Surface mount terminal type relay is sealed type and it can be
cleaned by immersion. Use pure water or alcohol-based cleaning
solvent.
3) 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 the
ultrasonic energy.
Other handling precautions
Expected switching life is dened under the standard test conditions
(temperature 15 to 35°C, humidity: 25 to 75%) specied in JIS C
5442.
Expected switching life is depend on usage conditions; coil driving
circuit, load type, activation frequency, activation phase, ambient
conditions and other factors. Please check relays and microwave
devices on the actual circuit.
Also, pay special attention loads such as those listed below.
When used for AC load-operating and the operating phase is
synchronous, rocking and fusing can easily occur due to contact
shifting.
Frequent switching under load condition
When high frequently switched under load condition that can cause
arc at the contacts, nitrogen and oxygen in the air is fused by the
arc energy and HNO3 is formed. This can corrode metal materials.
Countermeasures for these are.
1. Incorporate an arc-extinguishing circuit.
2. Lower the operating frequency
3. Lower the ambient humidity
When used for ‘‘Dry switching’’ without load current, please contact
our sales representative.
Please avoid relays to be used outside of the specication ranges
such as the coil rating, contact rating and switching life that may
cause abnormal heating, smoke, and re.
In case relays and microwave devices are dropped, please do not
use.
Please refer to "the latest product specications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
*RE Relays only
ASCTB403E 201905
Please contact ..........
Electromechanical Control Business Division
industral.panasonic.com/ac/e/
Specifications are subject to change without notice.
1006, Oaza Kadoma, Kadoma-shi, Osaka 571-8506, Japan
©Panasonic Corporation 2019
ASCTB102E 201907