The SJ6040L2 from Littelfuse is a Silicon Controlled Rectifier with Breakover Voltage 600 V, Breakover Current 40 A, Gate Trigger Voltage 1.7 V, Gate Trigger Current 0.015 A, Temperature Operating Range -40 to 150 Degree C. Tags: Through Hole. More details for SJ6040L2 can be seen below.
