The RFUH20NS6S from ROHM Semiconductor is a Power Diode with Forward Current 20 A, Forward Voltage 1.8 to 2.8 V, Reverse Current 0.1 to 10 uA, Reverse Voltage 600 V, Repetitive Peak Reverse Voltage 600 V. Tags: Surface Mount. More details for RFUH20NS6S can be seen below.