JANS1N4965

Single Zener Diodes Overview

The JANS1N4965 is a single Zener diode manufactured by Microchip Technology, designed for high-reliability applications. It features a nominal Zener voltage of 20 V with a power dissipation rating of 5 W and a tolerance of ±5%. The device utilizes a voidless hermetically sealed glass axial package (Case E/D-5B) suitable for through-hole mounting. It operates within an extended temperature range from -65°C to +175°C. Key electrical characteristics include a maximum impedance of 4.5 Ohms and a reverse leakage current of 2 µA at 15.2 V.

Single Zener Diodes Feature Summary

• Voidless hermetically sealed glass package construction
• Triple-layer passivation for enhanced robustness
• Extended operating temperature range up to 175°C

Single Zener Diodes Applications

• Aerospace voltage regulation circuits
• Defense electronics protection
• High-reliability industrial control systems

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix and manufacturer lot traceability upon request. Confirm that the component meets all required military or space-grade specifications for your project. Ensure compatibility with existing thermal management designs due to the 5 W power rating. Check for any recent product change notices regarding assembly sites or labeling updates before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed Zener diode with high thermal stability is required. The 20 V nominal voltage and 5 W power handling make it suitable for robust voltage reference or clamping applications in harsh environments. Consider the axial leaded package constraints for PCB layout. Verify that the ±5% tolerance aligns with circuit precision requirements.

Single Zener Diodes Part Context

This part belongs to the JEDEC registered 1N4965 series, adapted for high-reliability markets. Microchip Technology produces this variant under the JANS designation, indicating qualification for aerospace and defense sectors. It shares the base electrical profile of the commercial 1N4965 but differs in packaging integrity and manufacturing controls to ensure long-term reliability in critical missions.

Single Zener Diodes Replacement Considerations

Direct substitutes include other JANS-qualified versions of the 1N4965 series from authorized manufacturers. Verify pinout compatibility and hermetic seal standards when considering alternatives. Commercial equivalents like the standard 1N4965 lack the required environmental robustness for these applications.