JANTXV1N5543CUR-1

Single Zener Diodes Overview

The JANTXV1N5543CUR-1 is a hermetically sealed Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 25 V with a tolerance of ±2% and a maximum power dissipation of 0.5 W. The device utilizes silicon technology and is housed in the DO-213AA (MLL34/MELF-2) surface-mount package. It is qualified to MIL-PRF-19500/437 standards for military applications, ensuring high reliability in demanding environments.

Single Zener Diodes Feature Summary

• Hermetically sealed glass encapsulation for environmental protection
• Military-grade qualification compliant with MIL-PRF-19500/437
• Surface-mount MELF package design for automated assembly

Single Zener Diodes Applications

• Military aerospace voltage regulation circuits
• High-reliability industrial power supply references
• Avionics protection and clamping applications

Single Zener Diodes Procurement Notes

Verify the specific suffix CUR-1 against official Microchip documentation to confirm the exact reel configuration and testing level. Ensure procurement channels provide valid traceability certificates required for MIL-PRF-19500/437 compliance. Confirm that the received components match the hermetic seal specifications and do not exhibit signs of package damage prior to integration into sensitive systems.

Single Zener Diodes Selection Notes

Select this component when a 25 V reference with tight ±2% tolerance is required in a surface-mount form factor. The MIL-PRF-19500/437 qualification makes it suitable for missions requiring extended temperature stability and radiation hardness compared to commercial equivalents. Consider the DO-213AA footprint constraints during PCB layout to ensure proper thermal and mechanical performance.

Single Zener Diodes Part Context

This part belongs to the 1N5543 series of Zener diodes produced under the JAN (Joint Army-Navy) and JANTXV prefixes, indicating enhanced military screening levels. The CUR-1 suffix typically denotes a specific tape-and-reel packaging format for surface-mount devices. These components are designed to replace older axial-leaded versions while maintaining equivalent electrical performance in modern compact electronic assemblies.

Single Zener Diodes Replacement Considerations

Direct substitutes include JAN1N5543CUR-1 or JANTX1N5543CUR-1, provided the specific screening level differences are acceptable for the application. Verify that any replacement maintains the same DO-213AA footprint and hermetic sealing requirements.