Panasonic is part of a large worldwide groupselling relays and associated switching products under different brand names in different territories.The conditions of use in some territories may differ from those customary in Europe. In particular there are often major differences in regard to national and international specifications, such as UL, CSA, VDE, SEV, EVE, SEMKO, etc. Thus, when considering contact loads as stated in this catalogue (e.g. 10 A, 30 VDC for the SP relay) its hould be understood that these values are not necessarily an absolute maximum but tested ratings. Mostly the stated value has been tested for a certain life expectancy as stated by the manufacturer or the respective test house. Thus, under different conditions, the stated “maximum” may, in practice, be safely exceeded.
Type
Suitability
for Relays
Features
Epoxy-base Good
• Good electrical insulation.
• Although slightly difficult apply, does not affect relay contacts.
7.
Urethane-base Care
• Good electrical insulation, easy apply.Excerpts from Technical Information
5.) may
damage the case chemically
dissolve the epoxy and break the seal. Or,
mount the relay after coating. tin g
If the board coated to
prevent the insulation the board
from deteriorating due corrosive
gases and high temperatures, note the
following.g.
Depending the type, some coating
materials may have adverse affect
on relays.
Although the environm entally sealed
type relay (plastic sealed type, etc. Avoid ultrasonic
cleaning relays. Furthermore, solvents (e. Trichlene,
chloroethene, thinner, benzyl alcohol,
gasoline) may damage the relay case.
If the relay and all components (e. g
° o
° o
° °
o o
° o
O 0
° o
0 0
o O
0 °
O °
0 0
Do not clean dust-cover type relays
and flux-resistant type relays by
immersion.g. The solder may peel
off from therm stress.g.
• Solvent dam age case.
• Cleaning with the boiling method is
recommended.
xylene, toluene, MEK, I. Use ultrasonic
cleaning may cause breaks the coil
or slight sticking the contacts due to
the ultrasonic energy.
Doing may deteriorate the sealing
performance.
67
.
Select coating materials carefully.)
can cleaned, avoid immersing the
relay into cold liquid (such cleaning
solvent) ediately after soldering.
ICs) are coated, sure to
carefully check the flexibility the
coating material. lin g
A tic g
Immediate air cooling recommend to
prevent deterioration the relay and
surrounding parts due soldering
heat.g.
If the relay and all com ponents (e. Use of
other cleaning solvents (e. hen
term inals are cut, breaking coil wire
and slight sticking the contacts may
occur due vibration the cutter.
ICs) are coated, sure to
carefully check the flexibility the
coating material.
Plastic sealed type relays can be
cleaned immersion.
Silicone-base Good
• Silicone gas becom the cause contact failure.
• not cut the terminals.P. The solder may peel
off from therm stress. heck before use.g. Even only the bottom
surface the board cleaned
(e.
6. with brush), careless cleaning
may cause cleaning solvent to
penetrate the relay.A.
Do not use the silicone-base type. Use Freon- or
alcohol-based cleaning solvent.
Do not coat dust-cover type relays and
flux-resistant type relays, since the
coating material may penetrate the
relay and cause contact failure
