The STPS2L40ZFY from STMicroelectronics is a Power Diode with Forward Current 2 A, Forward Voltage 0.50 to 0.63 V, Reverse Current 35 uA, Repetitive Peak Reverse Voltage 40 V, Non-Repetitive Peak Forward Current 50 A. Tags: Through Hole. More details for STPS2L40ZFY can be seen below.