The 5STP 42U6500 from Hitachi Energy is a Silicon Controlled Rectifier with Breakover Voltage 6500 V, Breakover Current 64000 to 86000 A, Gate Trigger Voltage 2.6 V, Gate Trigger Current 400 mA, Temperature Operating Range -40 to 125 Degree C. Tags: Disc. More details for 5STP 42U6500 can be seen below.