One advantage of solid-state relay (SSR) over conventional electro-magnetic relay (EMR) is its tear and wear free operation. S201S01 from Sharp is a good example. Here is the circuit diagram of a DIY ...

Imagine a 60-Hz ac power circuit. A mechanical relay, ... Solid-state triac devices may be used to interrupt the flow of electricity in a manner that is synchronous with the ac current waveform.

As [Mic] often got requests to make high-power switching boards, he recently finally gave in and designed the one shown above based around a solid-state relay. Some of our readers that already play… ...

IXYS Integrated Circuits Division, (ICD), a leader in the design and manufacture of solid state relays and high voltage integrated circuits, is a wholly owned subsidiary of IXYS Corporation.