The AU1PK from Vishay is a Power Diode with Forward Current 1.0 A, Forward Voltage 1.6 to 1.85 V, Reverse Current 0.001 to 0.1 mA, Repetitive Peak Reverse Voltage 800 V, Non-Repetitive Peak Forward Current 25 A. Tags: Surface Mount. More details for AU1PK can be seen below.