High power thyristors, triac thyristor circuits, alternating current - tatanh1983/conchodom GitHub Wiki BTA12 Series 600 Vdrm 12 A Flange Mount Snubberless Triac - TO-220AB https://www.futureelectronics.com/p/electromechanical--circuit-protection--power-thyristors/bta12-600bwrg-stmicroelectronics-6124363