triac thyristor, Silicon controlled rectifier, Triac thyristor circuits
BTA12 Series 600 Vdrm 12 A Flange Mount Snubberless Triac – TO-220AB Website URL: https://www.futureelectronics.com/p/electromechanical–circuit-protection–power-thyristors/bta12-600bwrg-stmicroelectronics-4733333