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RA (ARA)
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
3) Dimensions of plastic reel
21 ± 0.8 dia.
.827 ± .031 dia.
7. Conditions for operation, transport
and storage conditions
1) Ambient temperature, humidity, and
atmospheric pressure during usage,
13 ± 0.2 ± .008
2.0 ± 0.2 ± .008
factor should be less than 5%.
However, check it with the actual circuit
since the characteristics may be slightly
different. The nominal operating voltage
should be applied to the coil for more
than 10 ms to set/reset the latching type
relay.
2.0 ± 0.5
.079 ± .020
.512 dia.
dia.
24.4 +2.0
.961 +.079
330 ± 2 dia.
12.992 ± .079 dia.
80 ± 1 dia.
3.150 ± .039 dia.
.079
transport, and storage of the relay:
(1) Temperature:
–40 to +70°C –40 to +158°F
(2) Humidity: 5 to 85% RH
(Avoid freezing and condensation.)
The humidity range varies with the
temperature. Use within the range
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 affected by a strong external magnetic
?eld. Avoid using the relay under that
condition.
4. Cleaning
For automatic cleaning, the boiling
method is recommended. Avoid
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.
indicated in the graph below.
(3) Atmospheric pressure: 86 to 106 kPa
Temperature and humidity range for
usage, transport, and storage:
Humidity, %R.H.
85
Tolerance range
(Avoid freezing (Avoid
when used at condensation
temperatures when used at
lower than temperatures
0 ° C 32 ° F ) higher than
0 ° C 32 ° F )
5
ultrasonic cleaning which subjects the
relays to high frequency vibrations, which
–40
–40
0
+32
Temperature, ° C ° F
70
+158
may cause the contacts to stick.
It is recommended that alcoholic solvents
be used.
5. Tape and reel packing
1) Tape dimensions
2) IR (infrared re?ow) soldering method
T 3
T 2
T 1
2) Condensation
Condensation forms when there is a
sudden change in temperature under
high temperature and high humidity
conditions. Condensation will cause
.059 +.004 dia.
2.0
.079
1.75
.069
11.5
.252 ± .008
16.0
.630
24.00
.945
RA relay
2) X type, Z type
X: Picked from 1 pin
Z: Picked from 10 pin
1.5 +0.1 dia.
0
4.0
.157
0.4
.016
.453
15.2
.598
6.4 ± 0.2
12.30 (10.75)
.484 (.423)
(General tolerance: ± 0.1 ± .004 )
Tape coming out direction
Relay polarity bar
t 1 t 2
T 1 = 150 to 180 ° C 302 to 356 ° F t 1 = 60 to 120 sec.
T 2 = 230 ° C 446 ° F and higher t 2 = Within 30 sec.
T 3 = Within 250 ° C 482 ° F
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
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.
temperature rise of each portion under
actual mounting condition before use.
The soldering earth shall be performed
by manual soldering.
For general cautions for use, please
refer to the “General Application
Guidelines”.
ASCTB102E 201202-T
Panasonic Corporation
Automation Controls Business Unit
industrial.panasonic.com/ac/e/
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