The YZPST-BT138 from Yangzhou Positioning Tech is a Triac with Breakover Voltage 600 to 800 V, Breakover Current 80 to 120 A, Gate Trigger Current 0.01 to 0.05 A, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for YZPST-BT138 can be seen below.