The IDK03G65C5 from Infineon Technologies is a Power Diode with Forward Current 3 A, Forward Voltage 1.5 V, Reverse Current 0.00015 to 0.37 mA, Repetitive Peak Reverse Voltage 650 V, Non-Repetitive Peak Forward Current 31 A. Tags: Surface Mount. More details for IDK03G65C5 can be seen below.