The SBTA72G12 from Sirectifier Electronics is a Triac with Breakover Voltage 1200 V, Breakover Current 750 to 1200 A, Gate Trigger Voltage 1.3 to 1.5 V, Gate Trigger Current 50 to 100 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for SBTA72G12 can be seen below.