1N5528BUR-1/TR

Overview

The JAN1N5528BUR-1/TR is a surface-mount Zener diode manufactured by Microchip Technology. It features an 8.2 V nominal Zener voltage with a 5% tolerance and operates at a test current of 1 mA. The device dissipates 500 mW of power and exhibits a maximum reverse leakage current of 500 nA. It utilizes the DO-213AA (MLL34) leadless package, which includes an internal metallurgical bond for enhanced reliability. The component supports a wide operating temperature range from -65°C to +175°C.

Feature Summary

• Internal metallurgical bond construction for improved mechanical stability
• Surface mount equivalent to JEDEC registered axial-leaded series
• Hermetically sealed glass package design
• Military qualification screening per MIL-PRF-19500/437

Applications

• Voltage regulation in military aerospace systems
• Reference voltage sources in harsh environment electronics
• Clamping circuits in high-reliability communication equipment
• Power supply protection in defense-grade instrumentation

Procurement Notes

Verify that the part number suffix matches the required military screening level. Confirm the presence of the internal metallurgical bond feature if specified. Ensure the DO-213AA package orientation aligns with PCB footprint requirements. Check datasheet revisions for any updates to electrical characteristics or handling instructions before finalizing procurement specifications.

Selection Notes

Select this component when a surface-mount Zener diode with military-grade reliability is required. The DO-213AA package offers a compact alternative to traditional axial leads while maintaining hermetic sealing. Consider the 500 mW power dissipation limit and thermal derating curves for high-temperature applications. Verify compatibility with automated assembly processes due to the leadless form factor.

Part Context

This device belongs to the 1N5518BUR-1 through 1N5546BUR-1 series of low-voltage surface mount avalanche diodes. The series provides a range of Zener voltages from 3.3 V to 33 V in standard 5% tolerances. The 'JAN' prefix indicates compliance with specific military screening standards defined in MIL-PRF-19500/437, ensuring suitability for demanding operational environments.

Replacement Considerations

Direct replacements include other JAN-qualified variants within the same series, such as JAN1N5528B-1/TR, provided the package and electrical parameters match. Cross-reference with JANTX or JANTXV prefixes only if higher screening levels are acceptable and electrically equivalent.