The BTA12-600B from Comset Semiconductors is a Triac with Breakover Voltage 600 V, Breakover Current 120 A, Gate Trigger Voltage 1.5 to 1.8 V, Gate Trigger Current 25 to 100 mA, Temperature Operating Range 0 to 110 Degree C. Tags: Through Hole. More details for BTA12-600B can be seen below.