1N5223BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5223BUR-1/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 2.7 V at a test current of 20 mA. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 0.5 W. The device features a maximum dynamic impedance of 30 Ohms, a reverse leakage current of 75 µA at 2.4 V, and a temperature coefficient of -0.080 %/°C. Packaged in the DO-213AA (MELF) format, it utilizes an internal metallurgical bond for hermetic sealing.

Single Zener Diodes Feature Summary

• Hermetically sealed glass package with internal metallurgical bonding
• Surface mount equivalent to JEDEC registered axial-leaded series
• Inherently radiation hard design
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic circuits requiring radiation hardness
• ESD-insensitive circuit protection applications

Single Zener Diodes Procurement Notes

Verify that the ordering suffix TR indicates tape and reel packaging per EIA-481-B standards. Confirm the B suffix denotes a 5% voltage tolerance. Ensure compatibility with RoHS compliance requirements if applicable, as commercial versions may differ from screened military-grade options.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability environments. The DO-213AA package provides a direct footprint alternative to traditional axial leads while maintaining metallurgical bond integrity. Consider the negative temperature coefficient for low-voltage regulation stability across wide thermal cycles.

Single Zener Diodes Part Context

This part belongs to the 1N5221BUR-1 through 1N5281BUR-1 series, which serves as the surface mount counterpart to the standard JEDEC registered 1N5221 through 1N5281 axial series. The series covers Zener voltages from 2.4 V to 200 V in a consistent 0.5 W power rating configuration.

Single Zener Diodes Replacement Considerations

The 1N5223B-1 is the axial-leaded equivalent within the same product family.