JANTX1N3821DUR-1/TR

Single Zener Diodes Overview

The JANTX1N3821DUR-1/TR is a silicon Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 3.3 V with a tight tolerance of ±1%. The device is designed for surface-mount applications and utilizes the DO-213AB MELF glass package. It provides a maximum power dissipation of 1 W and operates within an extended temperature range from -55°C to +175°C. The component complies with MIL-PRF-19500/115 standards and is supplied in tape and reel packaging.

Single Zener Diodes Feature Summary

• Hermetically sealed construction utilizing a glass MELF package for environmental protection
• High precision voltage regulation achieved through ±1% tolerance specification
• Extended thermal capability supporting operation up to +175°C junction temperature
• Compliance with military reliability standards for rugged electronic environments

Single Zener Diodes Applications

• Precision voltage reference circuits requiring stable low-voltage regulation
• Overvoltage protection stages in high-reliability aerospace systems
• Clamping applications in harsh environment industrial electronics
• Power supply regulation modules operating under extreme thermal conditions

Single Zener Diodes Procurement Notes

Verify that the ordering part number includes the UR-1 suffix to confirm the specific DO-213AB MELF package configuration and tape-and-reel delivery format. Ensure procurement specifications explicitly require the JANTX quality level to guarantee compliance with the necessary military performance standards and material integrity requirements for the intended application.

Single Zener Diodes Selection Notes

Select this component when a precise 3.3 V reference is required in a compact surface-mount form factor. The ±1% tolerance makes it suitable for sensitive analog circuitry where standard commercial tolerances are insufficient. Consider the MELF package geometry for automated assembly processes and its hermetic seal for long-term reliability in demanding operational environments.

Single Zener Diodes Part Context

This device belongs to the JAN1N3821 series of silicon voltage regulator diodes produced by Microchip Technology. The series encompasses various voltage ratings packaged in both axial leaded and MELF configurations. The JANTX designation indicates a specific quality tier within the military-grade product line, ensuring enhanced screening and consistency compared to standard commercial variants.

Single Zener Diodes Replacement Considerations

Direct substitutes include the JAN1N3821DUR-1 and JANTXV1N3821DUR-1. Verify that any replacement maintains the identical DO-213AB MELF footprint and ±1% voltage tolerance to ensure mechanical compatibility and electrical performance equivalence in existing designs.