The RB550EAFH from ROHM Semiconductor is a Power Diode with Forward Current 0.7 A, Forward Voltage 0.36 to 0.49 V, Reverse Current 1 to 50 uA, Reverse Voltage 30 V, Repetitive Peak Reverse Voltage 30 V. Tags: Surface Mount. More details for RB550EAFH can be seen below.