The MS T45S106UB from MS Power is a Silicon Controlled Rectifier with Breakover Voltage 600 V, Breakover Current 900 to 1000 A, Gate Trigger Voltage 3.0 V, Gate Trigger Current 150 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Stud Mount. More details for MS T45S106UB can be seen below.