The B40C1000G from Vishay is a Power Diode with Forward Current 1.0 to 1.2 A, Forward Voltage 1.0 V, Reverse Current 0.01 mA, Repetitive Peak Reverse Voltage 65 V, Non-Repetitive Peak Forward Current 45 A. Tags: Through Hole. More details for B40C1000G can be seen below.