The BZT52B27SV 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 18.9 V, Repetitive Peak Reverse Voltage 18.9 V. Tags: Surface Mount. More details for BZT52B27SV can be seen below.