The BZX584C10 from Micro Commercial Components is a Zener Diode with Zener Voltage 9.4 to 10.6 V, Zener Current 5 mA, Voltage Forward 0.9 V, Current 1 mA, Current Reverse Reverse Leakage Current:- 0.2 uA. More details for BZX584C10 can be seen below.