The UG30DPT-E3 from Vishay is a Power Diode with Forward Current 30 A, Forward Voltage 0.85 to 1.15 V, Reverse Current 0.015 to 0.8 mA, Repetitive Peak Reverse Voltage 200 V, Non-Repetitive Peak Forward Current 300 A. Tags: Through Hole. More details for UG30DPT-E3 can be seen below.