What is the NO SPST normally open relay? The NO Normally-Open SPST (Single Pole Single Throw) relay has an opened circuit state when no current is applied to its coil so basically it disconnects the ...

The PAA193 is a dual single-pole, normally open optoMOS relay featuring 5000 Vrms input/output isolation with low drive power requirements. It has no moving parts with high-reliability and does not ...

My July 3 column covered the theory and operation of potential relays. This article covers potential relay ratings and specifications along with systematic troubleshooting. Here is an example of a ...