The STYN12110 from Sirectifier Electronics is a Silicon Controlled Rectifier with Breakover Voltage 1200 V, Breakover Current 935 to 1190 A, Gate Trigger Voltage 1.5 to 1.6 V, Gate Trigger Current 40 to 80 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for STYN12110 can be seen below.