The RB160MM-40 from ROHM Semiconductor is a Power Diode with Forward Current 1 A, Forward Voltage 0.46 to 0.51 V, Reverse Current 6 to 30 uA, Reverse Voltage 40 V, Repetitive Peak Reverse Voltage 40 V. Tags: Surface Mount. More details for RB160MM-40 can be seen below.