This document provides the absolute maximum ratings and electrical characteristics of the MMSZ5226B to MMSZ5257B series Zener diodes produced by Fairchild Semiconductor Corporation. The series includes products with different rated voltages and impedances, suitable for various circuit applications.
This document is a technical datasheet for the Fairchild Semiconductor MMSZ5226B through MMSZ5257B series of zener diodes. The components are housed in an SOD-123 package with a tolerance of 5% and feature a forward voltage maximum of 0.9V at 10mA.
The datasheet provides absolute maximum ratings, including a power dissipation of 500mW at 25°C and a thermal resistance (Junction to Ambient) of 340°C/W for FR-4 or FR-5 substrates. It details electrical characteristics such as zener voltage, dynamic impedance, and reverse current across the full series range.
| Power Dissipation @25°C | 500 mW |
|---|---|
| Thermal Resistance, Junction to Ambient (FR-4/FR-5) | 340 °C/W |
| Storage Temperature Range | -55 to +150 °C |
| Operating Junction Temperature | +150 °C |
| Package Type | SOD-123 |
| Forward Voltage (Max @ IF=10mA) | 0.9V |
The maximum power dissipation at 25°C is 500 mW.
The thermal resistance (Junction to Ambient) for FR-4 or FR-5 substrates is 340 °C/W.
The forward voltage is a maximum of 0.9V when IF = 10mA.