1N4121UR

Single Zener Diodes Overview

The Microchip Technology 1N4121UR is a Zener diode voltage regulator designed for surface mount applications. It utilizes the DO-213AA-2 package, also known as SOD-80, and operates with a nominal power dissipation of 0.5 watts. The device provides stable voltage regulation within the standard series range, typically covering voltages from 1.8 to 100 volts with standard 5% tolerance options.

Single Zener Diodes Feature Summary

• Surface mount construction compatible with automated assembly processes
• Metallurgically bonded glass package design for enhanced reliability
• Direct replacement equivalent for registered JEDEC through-hole series

Single Zener Diodes Applications

• Voltage reference circuits in precision measurement equipment
• Overvoltage protection stages in signal conditioning paths
• Biasing networks in analog integrated circuit interfaces

Single Zener Diodes Procurement Notes

Verify the specific Zener voltage and tolerance suffix against the official datasheet before procurement. Confirm that the DO-213AA-2 footprint matches the target PCB layout. Ensure compliance with required environmental standards and check current availability status directly with authorized distributors.

Single Zener Diodes Selection Notes

Select this component when a compact surface mount solution is required for low-power voltage regulation tasks. Consider the thermal characteristics of the DO-213AA-2 package for heat dissipation requirements. Evaluate the available tolerance grades to ensure the selected variant meets the circuit's precision specifications.

Single Zener Diodes Part Context

This part belongs to the broader family of 0.5-watt Zener voltage regulators manufactured by Microchip Technology. It serves as the surface mount counterpart to legacy through-hole devices, maintaining electrical performance while enabling modern PCB manufacturing techniques. The series offers a wide selection of standardized voltage values.