1N5227BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5227BUR-1/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 3.6 V at a test current of 20 mA. It features a metallurgically bonded glass DO-213AA (MELF) package and offers a maximum power dissipation of 0.5 W. The device provides a 5% voltage tolerance, a maximum dynamic impedance of 24 Ohms at the test current, and a maximum reverse leakage current of 15 µA. It operates within a junction temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed metallurgically bonded glass surface mount package
• Voltage regulation over a broad operating current and temperature range
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020
• Inherently radiation hard

Single Zener Diodes Applications

• Voltage regulation in harsh environments
• Radiation-hardened circuit designs
• Temperature-compensated reference circuits

Single Zener Diodes Procurement Notes

Verify that the specific part number includes the TR suffix for tape and reel packaging as required by your assembly process. Confirm RoHS compliance status if applicable, noting that compliant versions are available on commercial grade only. Ensure the ordering suffix matches the desired voltage tolerance level before finalizing procurement documentation.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for high-reliability applications. The DO-213AA package serves as a direct surface mount equivalent to the axial-leaded 1N5227 series. Consider the 5% tolerance and radiation hardness characteristics for aerospace or military-grade circuit implementations requiring stable voltage references.

Single Zener Diodes Part Context

This component belongs to the 1N5221BUR-1 thru 1N5281BUR-1 series of 0.5 watt Zener voltage regulators. The series provides a surface mount alternative to the JEDEC registered 1N5221 to 1N5281 axial-leaded devices. These regulators cover a voltage range from 2.4 to 200 volts and utilize a metallurgically bonded configuration for enhanced durability.

Single Zener Diodes Replacement Considerations

The 1N5227B-1 is the axial-leaded equivalent in the same series. Verify package compatibility and lead configuration differences when substituting between surface mount and through-hole variants.