MMSZ5237ET1

Single Zener Diodes Overview

The MMSZ5237ET1G is a single Zener diode manufactured by onsemi, designed for surface-mount applications in the SOD-123 package. It features a nominal Zener voltage of 8.2 V with a 5% tolerance and a maximum power dissipation of 500 mW. The device operates within a temperature range of -55°C to +150°C and exhibits a maximum reverse leakage current of 3 µA at a test current of 20 mA.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in compact surface-mount configurations
• Engineered for high-density printed circuit board layouts
• Suitable for transient overvoltage protection scenarios

Single Zener Diodes Applications

• Cellular phone circuits
• Handheld portable devices
• High density PC boards

Single Zener Diodes Procurement Notes

Verify the complete part number suffix, as 'MMSZ5237ET1' may refer to the MMSZ5237ET1G variant which includes RoHS compliance and tape-and-reel packaging. Confirm package type and electrical tolerances against specific design requirements before procurement.

Single Zener Diodes Selection Notes

Select this component for space-constrained designs requiring an 8.2 V reference or clamp. Ensure the application current does not exceed the 500 mW thermal limit. Verify compatibility with standard SMD reflow processes for the SOD-123 footprint.

Single Zener Diodes Part Context

This component belongs to the MMSZ52 series of Zener voltage regulators. These devices are silicon planar junction diodes optimized for low-cost, high-volume manufacturing while maintaining reliable performance in consumer electronics and industrial control systems.

Single Zener Diodes Replacement Considerations

The MMSZ5237B is a verified equivalent offering identical 8.2 V regulation and 500 mW rating in the same SOD-123 package. Cross-reference datasheets to confirm pinout and thermal characteristics match.