The MCR103HR from Digitron Semiconductors is a Silicon Controlled Rectifier with Breakover Voltage 60 V, Breakover Current 6.0 A, Gate Trigger Voltage 0.8 to 1.2 V, Gate Trigger Current 200 µA, Temperature Operating Range -65 to 85 Degree C. Tags: Through Hole. More details for MCR103HR can be seen below.