A semiconductor used as a gate circuit The solid state equivalent of a thyratron Synonymous with Silicon Controlled Rectifier (SCR)
A semiconductor switch with "on" and "off" states May be uni-directional or bi-directional, and may be a triggered three-terminal device (a controlled rectifier), or a two-terminal device (diode)
Also known as silicon controlled rectifier, it is a power semiconductor device with three terminals (gate, cathode and anode) It becomes conductive (ON state) whenever a positive anode-cathode voltage exists and a trigger gate-cathode current is applied It turns to a blocking (or OFF) state when previously in conduction and the anode-cathode current tries to invert its sense, or when anode-cathode voltage is negative See thyristor symbol in illustration
A solid-state switching device for semiconductors to convert AC current in one of two directions controlled by an electrode