JANS1N4473

Single Zener Diodes Overview

The JANS1N4473 is a single Zener diode manufactured by Microchip Technology, designed for high-reliability applications. It features a nominal Zener voltage of 22V with a ±5% tolerance and a power dissipation rating of 1.5W. The component utilizes a DO-41 through-hole package and operates within a temperature range of -65°C to +175°C. It holds JANS qualification under MIL-PRF-19500/406 standards, ensuring suitability for space and military environments.

Single Zener Diodes Feature Summary

• JANS qualified for space and military applications
• High thermal stability over extended temperature ranges
• Robust axial leaded construction for reliable mounting

Single Zener Diodes Applications

• Spacecraft voltage regulation circuits
• Military electronic systems requiring radiation hardness
• High-reliability industrial control equipment

Single Zener Diodes Procurement Notes

Verify the specific suffix and revision level against the latest Microchip datasheet to ensure compliance with current manufacturing standards. Confirm that the JANS qualification status remains active for the intended procurement batch. Check for any product change notifications or obsolescence notices prior to finalizing orders.

Single Zener Diodes Selection Notes

Select this component when JANS space-grade reliability is mandatory. Ensure the circuit design accommodates the 1.5W power dissipation limit at maximum operating temperatures. Verify that the DO-41 package dimensions fit the available PCB real estate and mechanical constraints of the assembly.

Single Zener Diodes Part Context

This part belongs to the 1N447x series of Zener diodes produced by Microchip Technology. It shares electrical characteristics with other variants in the series but is distinguished by its JANS qualification, which mandates stricter manufacturing controls and testing protocols compared to commercial or standard military grades.

Single Zener Diodes Replacement Considerations

Direct substitutes include JAN1N4473 or JANTX1N4473 if JANS space qualification is not required. Verify pinout compatibility and thermal performance before substituting.