The MMBZ5239C from Micro Commercial Components is a Zener Diode with Zener Voltage 8.92 to 9.28 V, Zener Current 20 to 0.25 mA, Voltage Forward 1.2 V, Current Reverse Leakage Current:- 3 uA, Power 300 mW. More details for MMBZ5239C can be seen below.