The BZX584B2V4 from Micro Commercial Components is a Zener Diode with Zener Voltage 2.35 to 2.45 V, Zener Current 5 mA, Voltage Forward 0.9 V, Current 1 mA, Current Reverse Reverse Leakage Current:- 50 uA. More details for BZX584B2V4 can be seen below.