The BZX984B51 from Rectron Semiconductor is a Power Diode with Reverse Current 0.1 uA, Reverse Voltage 39 V, Repetitive Peak Reverse Voltage 39 V, Temperature operating range -55 to 125 Degree C, Reverse Breakdown Voltage 39 V. Tags: Surface Mount. More details for BZX984B51 can be seen below.