The BT169EL-T92-K from Unisonic Technologies is a Silicon Controlled Rectifier with Breakover Voltage 500 V, Breakover Current 8 A, Gate Trigger Voltage 0.2 to 0.8 V, Gate Trigger Current 25 to 200 uA, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for BT169EL-T92-K can be seen below.