The UT131G-6-AA3-R from Unisonic Technologies is a Triac with Breakover Voltage 600 V, Breakover Current 16 to 17.6 A, Gate Trigger Voltage 0.2 to 1.5 V, Gate Trigger Current 0.4 to 7 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Surface Mount. More details for UT131G-6-AA3-R can be seen below.