The MMBZ5239BW from Rectron Semiconductor is a Power Diode with Forward Current 0.01 A, Forward Voltage 0.9 V, Reverse Current 3.0 uA, Reverse Voltage 7.0 V, Repetitive Peak Reverse Voltage 7.0 V. Tags: Surface Mount. More details for MMBZ5239BW can be seen below.