1N4474C

Single Zener Diodes Overview

The Microchip Technology 1N4474C is a military-qualified Zener diode designed for high-reliability applications. It features a nominal Zener voltage of 20 V with a tolerance of ±5%. The device operates in the Through-Hole DO-41 package and supports a maximum power dissipation of 1.5 W. It maintains functionality across an extended temperature range from -65°C to +175°C junction temperature, ensuring stability in demanding environments.

Single Zener Diodes Feature Summary

• Military qualification compliant with MIL-PRF-19500/406 standards
• Hermetically sealed voidless glass construction
• Extended operating temperature range up to 175°C

Single Zener Diodes Applications

• High-reliability aerospace systems
• Defense electronics requiring radiation hardness
• Critical voltage regulation circuits where failure is not tolerated

Single Zener Diodes Procurement Notes

Verify that the specific order includes the 'C' suffix, which denotes military qualification under MIL-PRF-19500/406. Confirm that the required lot traceability and test reports align with defense procurement standards. Ensure the component meets the specified hermetic seal requirements for the intended operational environment.

Single Zener Diodes Selection Notes

Select this component when military-grade reliability and hermetic sealing are mandatory. It serves as a direct replacement for commercial equivalents only if environmental protection and qualification standards are strictly enforced. Verify that the DO-41 package fits the mechanical constraints of the design.

Single Zener Diodes Part Context

This part belongs to the 1N44xx series of 1.5 W Zener diodes manufactured by Microchip Technology. The series is recognized for its robust glass construction and is widely utilized in sectors requiring extreme durability and consistent performance under harsh conditions.

Single Zener Diodes Replacement Considerations

The 1N4474D is a parameter-equivalent alternative within the same product family. Both share identical electrical specifications but differ in their specific qualification levels and testing protocols.