JANTX1N5543CUR-1

Single Zener Diodes Overview

The JANTX1N5543CUR-1 is a silicon unidirectional Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 25V with a tolerance of 2% and a maximum power dissipation of 0.5W. The device utilizes a DO-213AA surface-mount package, also identified as MELF-2 or MLL34, constructed from hermetically sealed glass. It is qualified to the MIL-PRF-19500/437 military standard and operates within a temperature range up to 200°C.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction for environmental protection
• Military qualification compliant with MIL-PRF-19500/437 standards
• Surface-mount MELF-2 (DO-213AA) package design

Single Zener Diodes Applications

• Voltage regulation in military-grade electronic circuits
• Overvoltage protection in aerospace systems
• Precision reference applications requiring high reliability

Single Zener Diodes Procurement Notes

Verify that the specific part number includes the CUR-1 suffix to ensure the correct military qualification and package variant. Confirm compliance with MIL-PRF-19500/437 requirements for your application. Check for RoHS non-compliance status as these are typically leaded components. Ensure sourcing channels provide valid traceability documentation for military-grade parts.

Single Zener Diodes Selection Notes

Select this component when a 25V Zener voltage with tight 2% tolerance is required in a surface-mount form factor. The DO-213AA package is suitable for automated assembly processes. Consider the 0.5W power rating and 200°C maximum operating temperature for thermal management. This part is appropriate for designs mandating military-grade reliability and hermetic sealing.

Single Zener Diodes Part Context

This device belongs to the 1N5543 series of low-voltage avalanche Zener diodes. The JAN prefix indicates military qualification, while TX denotes enhanced testing levels. The CUR-1 suffix specifies the surface-mount MELF-2 package configuration. These diodes are designed for high-reliability applications where stable voltage regulation under extreme conditions is critical.

Single Zener Diodes Replacement Considerations

JAN1N5543CUR-1 is a verified equivalent part number offering identical electrical specifications and package type.