1N5273

Single Zener Diodes Overview

The Microchip Technology 1N5273 is a silicon unidirectional Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 120V with a maximum power dissipation of 0.5W. The component is available in various package configurations, including the DO-35 glass axial leaded case and hermetically sealed variants such as DO-7 or MELF formats depending on the specific suffix. Tolerance levels vary by series designation, typically offering standard 5% or 10% accuracy, with tighter tolerances available through specific part number suffixes.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation within the 1N5221 to 1N5281B series range
• Constructed with a silicon junction for reliable performance
• Available in hermetically sealed glass packages for harsh environments

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection stages
• General purpose voltage regulation

Single Zener Diodes Procurement Notes

Verify the specific suffix letter (e.g., A, B, C, D) to confirm tolerance and packaging requirements. Confirm RoHS compliance status, as older military-grade versions may contain lead. Ensure the manufacturer source is identified correctly, as Microsemi assets are now managed under Microchip Technology.

Single Zener Diodes Selection Notes

Select based on required Zener voltage tolerance and operating temperature range. Choose hermetically sealed packages for high-reliability or aerospace applications. Verify that the 0.5W power rating meets the thermal dissipation needs of the target circuit design.

Single Zener Diodes Part Context

This component belongs to the popular 1N5221 through 1N5281B series of 0.5-watt Zener Voltage Regulators. Originally produced by Microsemi Corporation, these parts are widely recognized for their availability in standard and tight tolerance options across various glass axial-leaded packages.

Single Zener Diodes FAQ

What is the nominal Zener voltage of the 1N5273?

The nominal Zener voltage is 120V.

Is the 1N5273 available in a surface mount package?

Standard versions are axial-leaded (DO-35/DO-7), but hermetically sealed MELF variants exist for different mounting styles.