The G50KAC from Greegoo Electric is a Silicon Controlled Rectifier with Breakover Voltage 800 to 1100 V, Breakover Current 12000 A, Gate Trigger Voltage 0.8 to 3.0 V, Gate Trigger Current 30 to 300 mA, Temperature Operating Range -40 to 115 Degree C. Tags: Disc. More details for G50KAC can be seen below.