The MMSZ4697 from Micro Commercial Components is a Zener Diode with Zener Voltage 10 to 10.5 V, Zener Current 50 mA(zener test current), Voltage Forward 0.95 V, Current Reverse Leakage Current:- 10 uA, Power 500 mW. More details for MMSZ4697 can be seen below.