The STPS40100HR from STMicroelectronics is a Power Diode with Forward Current 20 to 40 A, Forward Voltage 0.61 to 0.9 V, Reverse Current 5 to 30 uA, Repetitive Peak Reverse Voltage 100 V, Non-Repetitive Peak Forward Current 300 A. Tags: Through Hole. More details for STPS40100HR can be seen below.