In order to compact down my project and remove the bulky traditional automotive relay I'm looking at switching to an SSR (solid state relay). I've been googling them and reading up and they sound very nice. I'd like a bi directional (current can flow either way) unit I can use in 12 volt automotive applications and handle around 30 maybe 40 amps and be turned on/off by my arduino.
I've been searching over mouser.com but the volume is over whelming and a lot cost close to $100 and some as little as $4.
Anyone ever used SSRs and have some suggestions as to a good universal part # I could start with? Would love to order up a few and start playing around. Just completely lost as to which one to order.