JANTXV1N5521CUR-1/TR

Single Zener Diodes Overview

The JANTXV1N5521CUR-1/TR is a hermetically sealed Zener diode manufactured by Microchip Technology. It utilizes silicon technology and operates in a unidirectional configuration within the DO-213AA (MLL34/MELF-2) surface-mount package. The device provides a nominal Zener voltage of 4.3V with a maximum power dissipation of 500mW. It features a standard tolerance of plus or minus 20% and includes an internal metallurgical bond option for enhanced reliability.

Single Zener Diodes Feature Summary

• Hermetically sealed glass encapsulation designed for harsh environments
• Internal metallurgical bond construction for structural integrity
• Surface-mount MELF-2 package format for automated assembly

Single Zener Diodes Applications

• Military aerospace electronic systems
• Aviation navigation equipment
• Defense communication hardware

Single Zener Diodes Procurement Notes

Verify that the specific suffix matches the required package style, as the base part number may exist in axial configurations. Confirm military qualification status and lot traceability requirements before ordering. Ensure the procurement channel provides valid certification documents to validate the hermetic seal and metallurgical bond specifications.

Single Zener Diodes Selection Notes

Select this component when a ruggedized surface-mount Zener regulator is required for low-voltage applications. The 4.3V rating suits specific reference circuits. Consider the thermal constraints of the small MELF package during high-current operation. Verify compatibility with automated pick-and-place machinery due to the round-end lead frame design.

Single Zener Diodes Part Context

This device belongs to the 1N5521 series of low-voltage avalanche Zener diodes. The JANTXV prefix indicates a specific level of military-grade screening and quality assurance. The CUR-1 suffix denotes the surface-mount variant, distinguishing it from traditional through-hole axial-leaded versions found in commercial electronics.

Single Zener Diodes Replacement Considerations

Direct substitutes include JAN1N5521CUR-1 and JANTX1N5521CUR-1, which share identical electrical characteristics but differ in manufacturing screening levels.