1N5268BUR-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N5268BUR-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. The device features a nominal Zener voltage of 82 V with a 5% tolerance, tested at 1.5 mA. Maximum power dissipation is 0.5 W. Electrical characteristics include a maximum dynamic impedance of 330 Ohms and a reverse leakage current of 0.1 µA. Operating temperature ranges from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Hermetically sealed DO-213AA (MELF) package with internal metallurgical bond
• Surface mount form factor for JEDEC registered 1N5221 to 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 electronic circuits requiring hermetic sealing
• Radiation-hardened system designs

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm RoHS compliance status and tolerance class. Confirm that the TR suffix indicates tape and reel packaging as defined by EIA-481-B standards. Ensure procurement specifications align with the commercial grade availability for lead-free terminations if required.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount solution is required for high-reliability applications. The metallurgically bonded construction offers robustness compared to standard plastic packages. Verify thermal derating requirements based on ambient conditions and board layout constraints before finalizing the design.

Single Zener Diodes Part Context

This part belongs to the 1N5221BUR-1 through 1N5281BUR-1 series of 0.5 watt Zener regulators. These devices serve as direct surface mount replacements for traditional axial-leaded JEDEC registered diodes. The series covers a wide voltage range from 2.4 V to 200 V, providing standardized options for various circuit protection and reference needs.

Single Zener Diodes Replacement Considerations

Direct functional equivalents are available within the same series, such as the 1N5268B-1 in an axial DO-35 package. Cross-reference with other manufacturers offering DO-213AA MELF packages for supply chain flexibility while maintaining electrical parameter compatibility.