Datasheet

Solid State Relays Common Precautions
3. Mounting SSR to PCB
Read the precautions for each model and fully
familiarize yourself with the following information
when mounting the SSR to the PCB.
1. Do not bend the terminals to make the SSR
self-standing, otherwi
se the full
perf
ormance of the SSR ma
y not be
possible.
2. Process the PCB properly according to
the
mounting dimensions
.
Step 1
SSR mounting
1. The flux must be a non-corrosive rosin flux,
which is suitable to the material of the SSR.
Apply alcohol solvent to dissolve the flux.
2. Make sure that all parts of the SSR other
than th
e term
inals are free of the flux. The
insulation resistan
ce of the SSR ma
y be
degraded if there is flux on the bottom of
the SSR.
Step 2
Flux coating
Flux
1. Be sure to preheat the SSR to allow better
s
oldering.
2. Preheat the SSR under the following
conditions.
3. Do not use the SSR if it is left at hi
gh
temper
ature over a long time. This ma
y
change the char
acteristics of the SSR.
Temperature 100°C max.
Time 1 min max.
Step 3
Preheating
Heater
●Automatic Soldering
1. Flow soldering is recommended fo
r
maintaining a
uniform soldering quality.
x Solder: JIS Z3282 or H63A
x Soldering temperature: Approx. 250°C
(Approx. 260°C for DWS)
x Soldering time: Approx. 5 s
(Approx. 2 s for first time and approx. 3 s for
second time for DWS)
x Perform solder level adjustments so that
the solder will not overflow on the PCB.
●Manual Soldering
1. After smoothing the tip of the soldering
iron, solder the SSR under the follow
ing
conditions
.
x Solder: JIS Z3282,
1160A, or H63A with
rosin-flux-cored solder
x Soldering iron: 30 to 80 W
x Soldering temperature:
280°C to 350°C
x Soldering time: Approx. 3 s
2. As shown in the above illustration, solder
with a groove for preventing flux dispersion.
Solder
Flux
Step 4
Soldering
1. After soldering the SSR, be sure to cool
do
wn the SSR so that the solder
ing heat
will not det
eriorate the SSR or an
y other
components.
2. Do not dip the SSR into cold liquid, such as
a detergent, immediately after soldering the
SSR.
Step 5
Cooling
1. Refer to the following table for the selection
of the cleaning method and
detergent.
Detergent
2. Applicability of Detergents
Note 1. Contact your OMRON representatives
before using any other detergent. Do not
apply Freon TMC, paint thinner, or gasoline
to any SSR.
Note 2. The space between the SSR and PCB may
be not be adequately cleaned with a
hydrocarbon or alcohol detergent.
Boiling or dip cleaning is possible for the SSR. Do
not perform ultrasonic cleaning or cut the
terminals, otherwise the internal parts of the SSR
may be damaged. Make sure that the temperature
of the detergent is within the permissible ambient
operating temperature of the SSR.
Detergent Applicability
Chlorine
detergent
x Perochine
Chlorosolder
x Trichloroethylene
OK
Aqueous
detergent
x Indusco x Holys
x Pure water (pure hot
water)
OK
Alcohol
x IPA x Ethanol OK
Others
x Paint thinner
x Gasoline
NG
Actions are being taken worldwide to stop
the use of CFC-113 (chlorofluorocarbon)
and 1.1.1 trichloroethane. Your
understanding and cooperation are highly
appreciated.
Step 6
Cleaning
1. Do not fix the whole SSR with resin,
otherwise the
characteri
stics of the SSR
ma
y change.
2. The temperature of the coating material
m
ust be within the permissib
le ambient
oper
ating temperature range.
Coating
Note. When soldering PCB SSR with high-heat
capacity such as the G3M, make sure that
the soldering of SSR terminals is properly
performed.
Type Applicability
Epoxy OK
Urethane OK
Silicone OK
Step 7
Coating
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