JANTXV1N4479DUS

Single Zener Diodes Overview

The JANTXV1N4479DUS is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications in the SQ-MELF (D-5A) package. It features a nominal Zener voltage of 39 V with a tight tolerance of ±2%. The device supports a maximum power dissipation of 1.5 W and exhibits a maximum Zener impedance of 30 Ohms. Reverse leakage current is specified at 50 nA when tested at 31.2 V, while the forward voltage drop is 1 V at 200 mA. It operates within an extended temperature range of -65°C to 175°C and complies with MIL-PRF-19500/406 standards.

Single Zener Diodes Feature Summary

• Complies with MIL-PRF-19500/406 qualification standards for military-grade reliability.
• Provides precise voltage regulation with a tight ±2% tolerance on the 39 V nominal rating.
• Engineered for high-temperature stability across an operating range from -65°C to 175°C.
• Utilizes a compact SQ-MELF surface-mount package for efficient board integration.

Single Zener Diodes Applications

• Voltage reference circuits in aerospace and defense systems
• Overvoltage protection stages in harsh environment electronics
• Precision regulation in military-grade power supplies

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required package variant, as suffixes indicate specific physical configurations without altering electrical function. Confirm compliance with MIL-PRF-19500/406 requirements for your specific application needs. Ensure compatibility with the SQ-MELF footprint during PCB layout. Cross-reference datasheet parameters against system specifications to validate performance under extreme thermal conditions.

Single Zener Diodes Selection Notes

Select this component when a stable 39 V reference is required in space-constrained surface-mount designs. The ±2% tolerance offers higher precision than standard commercial equivalents. The wide temperature range makes it suitable for environments where standard silicon devices would fail. Consider the 1.5 W power rating to ensure adequate thermal management in the final assembly.

Single Zener Diodes Part Context

This part belongs to the JANTXV series of Zener diodes produced by Microchip Technology. The 'JANTXV' designation indicates a specific quality level within the military-grade product line. These components are engineered for high reliability and consistent performance in demanding applications, distinguishing them from general-purpose industrial diodes through rigorous testing and qualification protocols.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers for JANTXV1N4479DUS were not identified in the provided source material.