The BZT52C3V0T from Micro Commercial Components is a Zener Diode with Zener Voltage 2.8 to 3.2 V, Zener Current 1 mA, Voltage Forward 0.9 V, Current 5 mA, Current Reverse Reverse Leakage Current:- 10 uA. More details for BZT52C3V0T can be seen below.