[TechColab] needed to control a solenoid valve with a short pulse via a solid ... PCB supports an optoisolator that switches up to 1 A, a MOSFET that switches up to 2 A, and an on-board relay ...

As nice as they are for relay-based computers, there are times when you don’t want to deal with noise or the unreliability of moving parts. This is where solid-state relays (SSRs) are worth ...