The NTE56058 from NTE Electronics is a Triac with Breakover Voltage 500 V, Breakover Current 150 A, Gate Trigger Voltage 0.25 to 1.5 V, Gate Trigger Current 0.005 to 0.07 A, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for NTE56058 can be seen below.