ElectronsFlow
Member
Hey Spec, Could I bug you with a problem I'm working on? I've got a very low current 5vdc power source, It's approx 20~30ma only!!! Now here's the catch, I need to switch a relay from that, I can use any subminiature DPDT form factor relay (though preferably not over 12vdc on the coil) I figured the only chance I've got to run the relay from such a low current power source is with an optocoupler/BCXXX NPN transistor combo? I've used them in the past but I'll be the first to admit that after browsing all the types of optocouplers I feel rather overwhelmed as to my best option. An optocoupler through mount PCB style would be ideal, but it's not essential. Any suggestions? TIA
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