The T2801DHR from Digitron Semiconductors is a Triac with Breakover Voltage 400 V, Breakover Current 80 A, Gate Trigger Voltage 0.2 to 4 V, Gate Trigger Current 25 to 80 mA, Temperature Operating Range -40 to 100 Degree C. Tags: Through Hole. More details for T2801DHR can be seen below.