In this paper we report a 600 V Emitter Switched Thyristor with a Dive
rter (ESTD), that incorporates a p-channel diverter adjacent to the fl
oating emitter to improve the turn-off capability of the conventional
Emitter Switched Thyristor (EST). The current saturation feature of th
e EST is retained in this new device. Experimental devices show a 27-5
0% improvement in maximum gate controllable current over the conventio
nal EST for resistive switching, with a small penalty in forward drop.