Integrated gate-commutated thyristor

Integrated gate-commutated thyristor
Component typeActive
First producedABB
Mitsubishi
Pin namesanode, gate and cathode
Electronic symbol

The integrated gate-commutated thyristor (IGCT) is a power semiconductor electronic device, used for switching electric current in industrial equipment. It is related to the gate turn-off (GTO) thyristor.

It was jointly developed by Mitsubishi and ABB. Like the GTO thyristor, the IGCT is a fully controllable power switch, meaning that it can be turned both on and off by its control terminal (the gate). Gate drive electronics are integrated with the thyristor device.