The MAC3040-15HR from Digitron Semiconductors is a Triac with Breakover Voltage 400 V, Breakover Current 150 A, Gate Trigger Voltage 0.2 to 2 V, Gate Trigger Current 40 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for MAC3040-15HR can be seen below.