MMSZ5221BT1 is a 500mW surface mount Zener voltage regulator with a wide range of applications and is suitable for use on FR-4 or FR-5 circuit boards
The MMSZ5221BT1 Series offers surface‑mount Zener voltage regulators in a compact SOD‑123 package, suitable for high‑density applications. Features include a 500 mW power rating, a wide reverse voltage range from 2.4 V to 110 V, and Class 3 ESD protection (>16 kV).
The datasheet lists detailed electrical characteristics, mechanical dimensions, and typical performance curves such as temperature coefficients, leakage current, and dynamic impedance. Ordering information and package drawings are also provided for design and procurement.
| Power Dissipation | 500 mW |
|---|---|
| Reverse Zener Voltage Range | 2.4 V to 110 V |
| ESD Rating | Class 3 (>16 kV) HBM |
Each device is rated for 500 mW when mounted on an FR‑4 or FR‑5 board.
The parts have an ESD rating of Class 3, greater than 16 kV per the Human Body Model.