The BYT53D from Vishay is a Power Diode with Forward Current 1.9 A, Forward Voltage 0.9 to 1.1 V, Reverse Current 0.005 to 0.2 mA, Repetitive Peak Reverse Voltage 200 V, Non-Repetitive Peak Forward Current 50 A. Tags: Through Hole. More details for BYT53D can be seen below.