DQ-M (ADQM)
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 different.
2. Coil connection
When connecting coils, refer to the wiring
diagram to prevent mis-operation or
malfunction.
3. Soldering and cleaning
1) When soldering the relays, ensure
conformance with the conditions listed
below.
[Automatic soldering]
(1) Preheating: less than 120°C 248°F
(solder target surface of terminal) for less
than 120 sec
(2) Soldering: less than 260±5°C
500±41°F (solder temperature) for less
than 6 sec (soldering time)
[Manual soldering]
(1) Soldering tip temperature: less than
350°C 662°F
(2) Soldering iron: 60 W to 100 W
(3) Soldering time: less than 3 sec
Furthermore, because the type of PC
board used and other factors may
influence the relays, test that the relays
function properly on the actual board on
which they are mounted.
2) This relay is not sealed. Do not wash it.
Also, make sure that any flux overflowing
upward from the PC board does not get
inside the relay.
4. Others
1) If the relay has been dropped, the
appearance and characteristics should
always be checked before use.
2) The cycle lifetime is defined under the
standard test condition specified in the
JIS C 5442-1996 standard (temperature
15 to 35°C 59 to 95°F, humidity 25 to
75%). Check this with the real device as it
is affected by coil driving circuit, load
type, activation frequency, activation
phase, ambient conditions and other
factors.
Also, be especially careful of loads such
as those listed below.
(1) When used for AC load-operating and
the operating phase is synchronous.
Rocking and fusing can easily occur due
to contact shifting.
(2) High-frequency load-operating
When high-frequency opening and
closing of the relay is performed with a
load that causes arcs at the contacts,
nitrogen and oxygen in the air is fused by
the arc energy and HNO3 is formed. This
can corrode metal materials.
Three countermeasures for these are
listed here.
1. Incorporate an arc-extinguishing
circuit.
2. Lower the operating frequency
3. Lower the ambient humidity
3) For secure operations, the voltage
applied to the coil should be nominal
voltage. In addition, please note that pick-
up and drop-out voltage will vary
according to the ambient temperature
and operation conditions.
4) Heat, smoke, and even a fire may
occur if the relay is used in conditions
outside of the allowable ranges for the
coil ratings, contact ratings, operating
cycle lifetime, and other specifications.
Therefore, do not use the relay if these
ratings are exceeded. Also, make sure
that the relay is wired correctly.
5) Incorrect wiring may cause
unexpected events or the generation of
heat or flames.
6) Check the ambient conditions when
storing or transporting the relays and
devices containing the relays. Freezing or
condensation may occur in the relay,
causing functional damage. Avoid
subjecting the relays to heavy loads, or
strong vibration and shocks.
7) The minimum switching capacity is
given as a guide to the lowest level that
switching is possible when using minute
loads. This value can change due to
switching frequency, environmental
conditions, and desired reliability level.
Therefore, please conduct sufficient tests
under actual conditions.
8) Relays are shipped in a ‘reset’ state.
During shipping and handling, however,
shocks may change the state to ‘set.’
Consequently, at time of use (at power
on) it is recommended to ensure that
circuits are returned to the desired state
(‘set’ or ‘reset’).
9) Do not use parts that generate organic
silicon. When present in the vicinity,
conduction failure may occur.
10) This relay is designed to flux-resistant
type. Malfunction and contact failure may
result if small insects get inside the relay.
11) Installation of M4 securing screw
Do not apply excessive pressure on the
terminals. This could adversely affect
relay performance. Secure to the PC
board a dummy terminal designed for
reinforcement of the terminal and use a
washer in order to prevent deformation.
Keep the installation torque to within 1.2
and 1.4 N·m (12 to 14 kgf·cm). Also, use
a spring washer to prevent it from
loosening. Do not use the dummy
terminals as wiring to the PC board. In
case wiring of the dummy terminals, the
conductor destruction may occur due to
the high current.
5. Usage, transport and storage
conditions
1) Ambient temperature, humidity, and
atmospheric pressure during usage,
transport, and storage of the relay:
(1) Temperature:
–40 to +70°C –40 to +158°F
(2) Humidity: 5 to 75% 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:
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.
–40 0
5
75
70
–40 +32 +158
Te mperature, °C°F
Humidity, %RH
Tolerance range
(Avoid
condensation
when used at
temperatures higher
than 0°C32°F)
(Avoid freezing
when used at
temperatures
lower than
0°C32°F)
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