The IDW20G120C5B from Infineon Technologies is a Power Diode with Forward Current 20 A, Forward Voltage 1.4 V, Reverse Current 0.006 to 0.84 mA, Repetitive Peak Reverse Voltage 1200 V, Non-Repetitive Peak Forward Current 190 A. Tags: Through Hole. More details for IDW20G120C5B can be seen below.