The FCH20BU10 from Kyocera AVX is a Power Diode with Forward Current 20 A, Forward Voltage 0.91 to 1.00 V, Reverse Current 100 uA, Repetitive Peak Reverse Voltage 100 V, Non-Repetitive Peak Forward Current 120 A. Tags: Through Hole. More details for FCH20BU10 can be seen below.