The MS TF1290C11LA from MS Power is a Silicon Controlled Rectifier with Breakover Voltage 1100 V, Breakover Current 22 kA, Gate Trigger Voltage 3.0 V, Gate Trigger Current 300 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Disc. More details for MS TF1290C11LA can be seen below.