The DCR5480A28 from Dynex Semiconductor is a Silicon Controlled Rectifier with Breakover Voltage 2800 V, Breakover Current 73100 A, Gate Trigger Voltage 1.5 V, Gate Trigger Current 400 mA, Temperature Operating Range -55 to 125 Degree C. Tags: Disc. More details for DCR5480A28 can be seen below.