The UT138EG-8-TQ2-T from Unisonic Technologies is a Triac with Breakover Voltage 800 V, Breakover Current 95 to 105 A, Gate Trigger Voltage 0.25 to 1.5 V, Gate Trigger Current 2.5 to 25 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for UT138EG-8-TQ2-T can be seen below.