The T2180N18TOF VT from Infineon Technologies is a Silicon Controlled Rectifier with Breakover Voltage 1800 V, Breakover Current 36000 A, Gate Trigger Voltage 2 V, Gate Trigger Current 2180 A, Temperature Operating Range -40 to 125 Degree C. Tags: Chassis Mount. More details for T2180N18TOF VT can be seen below.