The RB160QS-40 from ROHM Semiconductor is a Power Diode with Forward Current 1.5 A, Forward Voltage 0.45 to 0.65 V, Reverse Current 1 to 20 uA, Reverse Voltage 40 V, Repetitive Peak Reverse Voltage 40 V. Tags: Surface Mount. More details for RB160QS-40 can be seen below.