The RFN20TF6SFH from ROHM Semiconductor is a Power Diode with Forward Current 20 A, Forward Voltage 1.25 to 1.55 V, Reverse Current 0.05 to 10 uA, Reverse Voltage 600 V, Repetitive Peak Reverse Voltage 600 V. Tags: Through Hole. More details for RFN20TF6SFH can be seen below.