The SV6025R1Q from Littelfuse is a Silicon Controlled Rectifier with Breakover Voltage 600 V, Breakover Current 25 A, Gate Trigger Voltage 1.7 V, Gate Trigger Current 0.006 A, Temperature Operating Range -40 to 150 Degree C. Tags: Through Hole. More details for SV6025R1Q can be seen below.