The BZT52C10T from Micro Commercial Components is a Zener Diode with Zener Voltage 9.4 to 10.6 V, Zener Current 1 mA, Voltage Forward 0.9 V, Current 5 mA, Current Reverse Reverse Leakage Current:- 0.2 uA. More details for BZT52C10T can be seen below.