I'm trying to translate a circuit I made from breadboard to PCB and need some help finding out what components I should be looking for.
Basically, so far I have a very simple circuit running 12V AC, at about 10-20A using a relay.
I'm controlling this relay with an arduino, so if I give 0v the circuit flows towards circuit A, and if I give 5v, the relay switches the flow to circuit B.
My issue is that the relay is too big for my application, I need something smaller, that I can fit in to a smaller chip.
From my research FET's is what I should be using, but are there other easier components I can use? With FET's, I will need to use an optocoupler to drive them from the arduino correct? Are there simpler ways?