The NTE56040 from NTE Electronics is a Triac with Breakover Voltage 500 V, Breakover Current 27 A, Gate Trigger Voltage 0.25 to 1.5 V, Gate Trigger Current 0.0025 to 0.025 A, Temperature Operating Range 125 Degree C. Tags: Through Hole. More details for NTE56040 can be seen below.