The BZT52C9V1T from Micro Commercial Components is a Zener Diode with Zener Voltage 8.5 to 9.6 V, Zener Current 1 mA, Voltage Forward 0.9 V, Current 5 mA, Current Reverse Reverse Leakage Current:- 0.5 uA. More details for BZT52C9V1T can be seen below.