The BT169H-L from WeEN Semiconductors is a Silicon Controlled Rectifier with Breakover Voltage 800 V, Breakover Current 9 A, Gate Trigger Voltage 0.3 to 0.8 V, Gate Trigger Current 0.00005 A, Temperature Operating Range -40 to 150 Degree C. Tags: Through Hole. More details for BT169H-L can be seen below.