The G45KAC from Greegoo Electric is a Silicon Controlled Rectifier with Breakover Voltage 800 to 1100 V, Breakover Current 9600 A, Gate Trigger Voltage 0.8 to 3.0 V, Gate Trigger Current 30 to 250 mA, Temperature Operating Range -40 to 115 Degree C. Tags: Disc. More details for G45KAC can be seen below.