PCB AC Load SSR with DC control - del30010
This is a PCB Mount SSR for Control of a Small AC
load like a Lamp or a Contacter. It has Optical
Isolation and has a Thyristor for output. The
MOC3041 A zero crossover optical triac driver is
Major application of these relays are in
Controllers, Timers and Counters -
Analog Blind Dial On Delay Timer
The footprint is very small, many can be stacked
in one small PCB. These can be used to signal
bigger loads or devices. They can take upto
2 A, so small heaters or motors can be switched.
It is better to use a fuse in series with the
output as a defective load can blow the SSR.
These are also used in Lighting Control -
Computer Christmas - Light Control
You can see in the PCBs below the distance
between the input and output tracks is more than
5mm. The opto is itself a few kilovolts of
isolation and we should take care of the creepage
distance on the PCB and surface. Read more.