The STPSC20H12-Y from STMicroelectronics is a Power Diode with Forward Current 20 A, Forward Voltage 1.35 to 2.25 V, Reverse Current 800 uA, Repetitive Peak Reverse Voltage 1200 V, Non-Repetitive Peak Forward Current 700 A. Tags: Through Hole. More details for STPSC20H12-Y can be seen below.