May 20, 2018
MOC3021 Triac Driven Optoisolator
The MOC3021 is a Zero-Crossing TRIAC driven Optocoupler or Optoisolator. As we know the term Optocoupler/optoisolater means the same that is we use light to indirectly couple to sets of circuits. The speciality of MOC3021 is that it has Zero-Crossing ability and is driven by a Triac.
Since the output is driven by a TRIAC we can drive loads upto 400V and the triac can conduct in both directions hence controlling AC loads will not be a problem