The BTB312AG-8-TW-TQ2-T from Unisonic Technologies is a Triac with Breakover Voltage 800 V, Breakover Current 120 to 126 A, Gate Trigger Voltage 1.3 V, Gate Trigger Current 5 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for BTB312AG-8-TW-TQ2-T can be seen below.