The GBLA08 from Vishay is a Power Diode with Forward Current 3 to 4 A, Forward Voltage 1.0 V, Reverse Current 0.005 to 0.5 mA, Repetitive Peak Reverse Voltage 800 V, Non-Repetitive Peak Forward Current 120 A. Tags: Through Hole. More details for GBLA08 can be seen below.