3. External magnetic field
Since RS relays are highly sensitive
polarized relays, their characteristics will
be affected by a strong external magnetic
field. 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. Conditions for operation, transport
and storage conditions
1) Temperature
•Single side stable standard and latching
type: –40 to 70°C –40 to 158°F
•Single side stable silent type:
–40 to 60°C –40 to 140°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:
Single side stable standard
and latching type
Single side stable silent type
4) 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.
5) 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.
6) 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.
7) Storage requirements
Since the relay is sensitive to humidity,
the surface-mount type 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.
If relays are left as is after unpacking,
they will absorb moisture which will result
in loss of air tightness as a result of case
expansion due to thermal stress when
reflow soldering during the mounting
process. (within one day, 30°C and
60%R.H or less)
(2) When storing for a log period after
opening the anti-humidity pack, storage
in anti-humidity packaging with an anti-
humidity bag to which silica gel has been
added, is recommended.
*Furthermore, if the relay is solder
mounted when it has been subjected to
excessive humidity, cracks and leaks can
occur. Be sure to mount the relay under
the required mounting conditions.
6. Soldering
1) Please meet the following conditions if
this relay is to be automatically soldered.
(1) Preheating: Max. 120°C 248°F
(terminal solder surface) for max. 120
seconds
(2) Soldering: Max. 260±5°C 500±9°F for
max. 6 seconds
*Relays are influenced by the type of PC
board used. Please confirm with the
actual PC board you plan to use.
*Please avoid reflow soldering.
2) Surface-mount terminal
In case of automatic soldering, the
following conditions should be observed
(1) Position of measuring temperature
(2) IR (infrared reflow) soldering method
• Mounting cautions
Rise in relay temperature depends
greatly on the component mix on a given
PC board and the heating method of the
reflow equipment. Therefore, please test
beforehand using actual equipment to
ensure that the temperature where the
relay terminals are soldered and the
temperature at the top of the relay case
are within the conditions given above.
3) Please meet the following conditions if
this relay is to be soldered by hand.
(1) 260°C 500°F for max. 10 seconds
(2) 350°C 662°F for max. 3 seconds
The effect on the relay depends on the
actual substrate used. Please verify the
substrate to be used.
(3) Avoid ultrasonic cleaning. Doing so
will adversely affect relay characteristics.
Please use alcohol-based cleaning
solvents when cleaning relays.
7. Tape and reel packing
1) Tape dimensions
2) Dimensions of plastic reel
Humidity, %R.H.
Temperature, °C °F
Tolerance range
85
5
070-40 32 158-40
(Avoid
condensation
when used at
temperatures
higher than
0°C 32°F)
(Avoid freezing
when used at
temperatures
lower than
0°C 32°F)
Humidity, %R.H.
Temperature, °C °F
Tolerance range
85
5
060-40 32 140-40
(Avoid
condensation
when used at
temperatures
higher than
0°C 32°F)
(Avoid freezing
when used at
temperatures
lower than
0°C 32°F)
A
A: Surface of PC board where relay is mounted.