Dynex DCR370T18, Thyristor 1800V, 370A 300mA

Gate & Cathode Leads.

Thyristors - DYNEX

A Thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. They act as bistable switches, conducting when their gate receives a current trigger, and continue to conduct while they are forward biased. Thyristors are synonymous to Silicon-Controlled Rectifier (SCR).