The T3800N18TOF VT from Infineon Technologies is a Silicon Controlled Rectifier with Breakover Voltage 1800 V, Breakover Current 53000 A, Gate Trigger Voltage 2.5 V, Gate Trigger Current 2250 A, Temperature Operating Range -40 to 135 Degree C. Tags: Chassis Mount. More details for T3800N18TOF VT can be seen below.