The BXY43-T1 (ES) from Infineon Technologies is a Power Diode with Dynamic Resistance 0.9 to 70 ohm, Forward Current 0.4 A, Forward Voltage 0.97 to 1 V, Reverse Current 0.1 uA, Reverse Voltage 150 V. Tags: Stud Mount. More details for BXY43-T1 (ES) can be seen below.