1N5271BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5271BUR-1/TR is a surface mount Zener voltage regulator in the 1N5221BUR-1 to 1N5281BUR-1 series. It provides a metallurgically bonded glass equivalent to JEDEC registered axial parts, housed in a DO-213AA (SOD80/MLL34) MELF package with tape and reel packaging. The device features a nominal Zener voltage of 100 V at a test current of 1.3 mA, with a maximum dynamic impedance of 500 Ohms at IZT and 2600 Ohms at IZK. It offers a 5% voltage tolerance, a maximum reverse leakage current of 26 µA at 76 V, and 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
• Surface mount equivalent to JEDEC registered 1N5221 through 1N5281 series
• Inherently radiation hard per Microsemi documentation
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against the manufacturer's part nomenclature guide to ensure correct tolerance and compliance levels. Confirm that the tape and reel option aligns with automated assembly requirements. Check for available up-screening options referencing MIL-PRF-19500 if military-grade specifications are required for the design.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is needed as a direct replacement for traditional axial-leaded equivalents. Ensure the 100 V breakdown voltage matches the circuit requirements. Consider the 500 mW power dissipation limit and thermal resistance values when designing the PCB footprint and heat management strategy.

Single Zener Diodes Part Context

This device belongs to the 1N5221BUR-1 through 1N5281BUR-1 series of 0.5 W Zener regulators. These components provide a surface mount alternative to the widely used JEDEC registered 1N5221 to 1N5281 axial series. The series covers a voltage range from 2.4 V to 200 V, offering various tolerance options including 1%, 2%, 5%, and 10%.

Single Zener Diodes Replacement Considerations

Direct surface mount replacements include other variants within the 1N5221BUR-1 to 1N5281BUR-1 series. For axial leaded equivalents, consider the 1N5221B-1 through 1N5281B-1 series.