The GSIB2580N from Vishay is a Power Diode with Forward Current 3.5 to 25 A, Forward Voltage 1.0 V, Reverse Current 0.01 to 0.35 mA, Repetitive Peak Reverse Voltage 800 V, Non-Repetitive Peak Forward Current 350 A. Tags: Through Hole. More details for GSIB2580N can be seen below.