The RBS5LAM40A from ROHM Semiconductor is a Power Diode with Forward Current 5 A, Forward Voltage 0.43 to 0.49 V, Reverse Current 400 to 800 uA, Reverse Voltage 20 V, Repetitive Peak Reverse Voltage 40 V. Tags: Surface Mount. More details for RBS5LAM40A can be seen below.