The G2SB80 from Vishay is a Power Diode with Forward Current 1.5 A, Forward Voltage 1.0 V, Reverse Current 0.005 to 0.3 mA, Repetitive Peak Reverse Voltage 800 V, Non-Repetitive Peak Forward Current 80 A. Tags: Through Hole. More details for G2SB80 can be seen below.