The CR05AM-16A from Renesas is a Silicon Controlled Rectifier with Breakover Voltage 800 V, Breakover Current 0.47 A, Gate Trigger Voltage 0.8 V, Gate Trigger Current 0.0001 A, Temperature Operating Range -40 to 125 Degree C. Tags: Through Hole. More details for CR05AM-16A can be seen below.