The BT131 Series from Yangzhou Positioning Tech is a Triac with Breakover Voltage 600 to 800 V, Breakover Current 16 A, Gate Trigger Voltage 1.3 V, Gate Trigger Current 0.003 to 0.01 A, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole, Surface Mount. More details for BT131 Series can be seen below.