JANTXV1N4978

Single Zener Diodes Overview

The JANTXV1N4978 is a single Zener diode manufactured by Microchip Technology, designed for high-reliability applications. It features a nominal Zener voltage of 68 V with a tolerance of ±5% and a maximum power dissipation of 5 W. The device operates within an extended temperature range of -65°C to 175°C and is housed in an axial package (E) suitable for through-hole mounting. Key electrical characteristics include a maximum Zener impedance of 50 Ohms and a reverse leakage current of 2 µA at 51.7 V. The component holds MIL-PRF-19500/356 qualification and is classified as a military-grade part.

Single Zener Diodes Feature Summary

• Military-grade construction compliant with MIL-PRF-19500/356 standards
• Extended operating temperature range from -65°C to 175°C
• High power dissipation capability of 5 W in an axial leaded package

Single Zener Diodes Applications

• Voltage regulation in military aerospace systems
• Overvoltage protection circuits requiring high reliability
• Reference voltage sources in harsh environment electronics

Single Zener Diodes Procurement Notes

Verify the specific suffix designation to ensure compliance with required military specifications and environmental testing standards. Confirm that the procurement channel provides appropriate documentation for defense or aerospace supply chain requirements. Check for any recent process change notifications regarding packaging or assembly sites to ensure compatibility with existing manufacturing processes.

Single Zener Diodes Selection Notes

Select this component when a 68 V Zener reference is needed in high-power, through-hole configurations. Ensure the design accounts for the 5 W thermal dissipation requirements and the specific impedance characteristics. Verify that the military grade qualification meets the project's reliability standards and that the axial package fits the board layout constraints.

Single Zener Diodes Part Context

This part belongs to the 1N4978 series of Zener diodes produced by Microchip Technology. The JANTXV suffix indicates a specific level of military qualification and screening beyond standard commercial variants. It is part of a broader family of axial-leaded Zener diodes designed for robust performance in demanding electronic environments.

Single Zener Diodes Replacement Considerations

Direct parameter-equivalent substitutes include JAN1N4978, JANTX1N4978, and 1N4978 from Microchip Technology. These alternatives may differ in specific military screening levels or packaging variations. Verify functional equivalence and qualification status before substitution.