The 45CKQ100 from Infineon Technologies is a Power Diode with Forward Current 45 A, Forward Voltage 0.74 to 1.18 V, Reverse Voltage 100 V, Repetitive Peak Reverse Voltage 100 V, Non-Repetitive Peak Forward Current 400 A. Tags: Through Hole. More details for 45CKQ100 can be seen below.