JANTX1N4473/TR

Single Zener Diodes Overview

The JANTX1N4473/TR is a Zener diode manufactured by Microchip Technology, designed for surface-mount applications in the SQ-MELF (D-5A) package. It features a nominal breakdown voltage of 22 V with a tight tolerance of ±5%. The component is rated for a maximum power dissipation of 1.5 W and operates within a junction temperature range of -65°C to +175°C. Key electrical characteristics include a reverse leakage current of 50 nA at 16 V and a forward voltage of 1.5 V at 1 A. It complies with MIL-PRF-19500/406 standards for military-grade reliability.

Single Zener Diodes Feature Summary

• Military-grade qualification compliant with MIL-PRF-19500/406 standards
• High thermal stability supporting operation up to 175°C junction temperature
• Precision voltage regulation with ±5% tolerance on nominal breakdown voltage
• Surface-mount D-5A packaging optimized for automated assembly

Single Zener Diodes Applications

• Voltage regulation in military aerospace systems
• Overvoltage protection circuits in harsh environments
• Reference voltage sources in high-reliability instrumentation

Single Zener Diodes Procurement Notes

Verify that the ordering suffix /TR confirms tape-and-reel packaging configuration. Confirm MIL-PRF-19500/406 compliance documentation is included. Ensure the SQ-MELF D-5A package matches PCB footprint requirements. Validate lot traceability for military grade specifications prior to procurement.

Single Zener Diodes Selection Notes

Select this component when precise 22 V regulation is required in space-constrained surface-mount designs. The D-5A package offers a compact alternative to axial leads while maintaining high power handling. Consider the ±5% tolerance if tighter regulation is not critical. Verify thermal management capabilities for continuous 1.5 W dissipation in enclosed military enclosures.

Single Zener Diodes Part Context

This part belongs to the JANTX series of Zener diodes from Microchip Technology, specifically tailored for ruggedized electronic applications. The JANTX designation indicates enhanced testing and screening compared to standard commercial grades, ensuring suitability for defense and aerospace platforms requiring long-term operational stability under extreme conditions.

Single Zener Diodes Replacement Considerations

JAN1N4473/TR is a parameter-equivalent alternative within the same manufacturer portfolio.