The DL85C27 from Micro Commercial Components is a Zener Diode with Zener Voltage 25.1 to 28.9 V, Zener Current 0.25 mA, Voltage Forward 1.0 V, Current 8 mA, Current Reverse Reverse Leakage Current:- <0.5 uA. More details for DL85C27 can be seen below.