TRIAC Symbol
The circuit symbol for TRIACs shows the three electrodes of the device, including both anodes and the gate. Although not all TRIAC devices will be constructed in exactly this way, they all have two SCRs that are linked antiparallel to each other via a cathode and anode.
Jun 19, 2023
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The triac symbol can be seen to be a couple of thyristor symbols in opposite senses merged together. ... Like a thyristor, a triac has three terminals. However ...