Panasonic ARS10A4H PCB Mount Relay 1 CO, SPDT ARS10A4H Data Sheet

Product codes
ARS10A4H
Page of 11
RS
11
ds_61314_0000_en_rs: 210408J
For Cautions for Use, see 
Insertion loss compensation
The insertion loss of relay itself is given 
by subtracting the insertion loss of 
shortcircuit the COM and the NC (or NO). 
(signal path and two connectors)
9. Others
1) The switching lifetime is defined under 
the standard test condition specified in 
the JIS* C 5442 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.
• When used for AC load-operating and 
the operating phase is synchronous, 
rocking and fusing can easily occur due 
to contact shifting.
• 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 HNO
3
 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
2) Use the relay within specifications 
such as coil rating, contact rating and on/
off service life. If used beyond limits, the 
relay may overheat, generate smoke or 
catch fire.
3) Be careful not to drop the relay. If 
accidentally dropped, carefully check its 
appearance and characteristics before 
use.
4) Be careful to wire the relay correctly. 
Otherwise, malfunction, overheat, fire or 
other trouble may occur.
5) If a relay stays on in a circuit for many 
months or years at a time without being 
activated, circuit design should be 
reviewed so that the relay can remain 
non-excited. A coil that receives current 
all the time heats, which degrades 
insulation earlier than expected. A 
latching type relay is recommended for 
such circuits.
6) To ensure accurate operation of the 
latching type amidst surrounding 
temperature changes and other factors 
that might affect the set and reset pulse 
times, we recommend a coil impress set 
and reset pulse width of at least 30 ms at 
the rated operation voltage.
7) The latching type relay is shipped in 
the reset position. But jolts during 
transport or impacts during installation 
can change the reset position. It is, 
therefore, advisable to build a circuit in 
which the relay can be initialized (set and 
reset) just after turning on the power.
8) If silicone materials (e.g., silicone 
rubbers, silicone oils, silicone coating 
agents, silicone sealers) are used in the 
vicinity of the relay, the gas emitted from 
the silicone may adhere to the contacts of 
the relay during opening and closing and 
lead to improper contact. If this is the 
case, use a material other than silicone.