The MMBZ5253C from Micro Commercial Components is a Zener Diode with Zener Voltage 24.5 to 25.5 V, Zener Current 5 to 0.25 mA, Voltage Forward 1.2 V, Current Reverse Leakage Current:- 0.1 uA, Power 300 mW. More details for MMBZ5253C can be seen below.