The 1SMAF2EZ51 from Rectron Semiconductor is a Power Diode with Forward Current 0.2 A, Forward Voltage 1.2 V, Reverse Current 0.5 uA, Reverse Voltage 38.8 V, Repetitive Peak Reverse Voltage 38.8 V. Tags: Surface Mount. More details for 1SMAF2EZ51 can be seen below.