The SKT 813/12E from Semikron Danfoss is a Silicon Controlled Rectifier with Breakover Voltage 1200 V, Breakover Current 13000 to 15000 A, Gate Trigger Voltage 3 V, Gate Trigger Current 200 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Disc. More details for SKT 813/12E can be seen below.