The MMSZ5254B is an ultra-small, surface-mount Zener diode made by Diotec Electronic Corporation. This device features a breakdown voltage of 5.1V and a maximum power dissipation of 500mW. The MMSZ5254B has a total capacitance of 25pF, a forward voltage of 1.2V, and a reverse current leakage of 10nA. It is designed for use as a voltage reference in general purpose digital and analog circuits, such as logic levels, power supplies, and amplifier clippers. Additionally, it is also suitable for applications such as static discharge protection, waveform clamping, and temperature compensation.