The BZT52C43SV from Rectron Semiconductor is a Power Diode with Forward Current 0.01 A, Forward Voltage 0.9 V, Reverse Current 0.1 uA, Reverse Voltage 29.4 V, Repetitive Peak Reverse Voltage 29.4 V. Tags: Surface Mount. More details for BZT52C43SV can be seen below.