This document is about the electrical characteristics of MMSZ5226B-MMSZ5257B zener diodes, including VZ, ZZ, ZZK, IR and other parameters
The MMSZ5226B‑MMSZ5257B series are SOD‑123 packaged Zener diodes offered by Fairchild Semiconductor. The sheet provides the voltage markings, forward voltage, and a full table of electrical characteristics for each part number in the range.
Key specifications include a maximum power dissipation of 500 mW, thermal resistance of 340 °C/W, storage temperature range from –55 °C to +150 °C, and a Zener voltage tolerance of ±5 %. Absolute maximum ratings and operating junction temperature limits are also listed.
| Power Dissipation (PD) | 500 mW |
|---|---|
| Thermal Resistance (RθJA) | 340 °C/W |
| Storage Temperature Range | -55 °C to +150 °C |
| Operating Junction Temperature (TJ) | +150 °C |
| Zener Voltage Tolerance | ±5 % |
| Package | SOD‑123 |
The maximum power dissipation is 500 mW at a 25 °C ambient temperature.
They can be stored from –55 °C up to +150 °C.
The Zener voltage tolerance is ±5 %.