The BZT52B51BS-TP from Micro Commercial Components is a Power Diode with Forward Current 0.01 A, Forward Voltage 0.9 V, Reverse Current 0.045 uA, Reverse Voltage 35.7 V, Repetitive Peak Reverse Voltage 35.7 V. Tags: Surface Mount. More details for BZT52B51BS-TP can be seen below.