The BT152-500RT from WeEN Semiconductors is a Silicon Controlled Rectifier with Breakover Voltage 500 V, Breakover Current 200 A, Gate Trigger Voltage 0.25 to 1 V, Gate Trigger Current 0.032 A, Temperature Operating Range -40 to 150 Degree C. Tags: Through Hole. More details for BT152-500RT can be seen below.