1N4475C

Single Zener Diodes Overview

The Microchip Technology 1N4475C is a hermetically sealed, axial lead Zener diode designed for high-reliability applications. It operates within a temperature range of -65°C to +175°C and dissipates up to 1.5 W. The device provides a nominal reference voltage of 27 V with a maximum voltage tolerance of 2%. Key electrical parameters include a reverse leakage current of 50 nA at 21.6 V, a forward voltage of 1 V at 200 mA, and a Zener impedance of 18 Ω. It is qualified under MIL-PRF-19500/406.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction using void-less compression bonded technology
• Internal metallurgical bond ensures structural integrity in harsh environments
• Qualified to military reliability standards for critical systems

Single Zener Diodes Applications

• High-reliability aerospace circuits
• Military electronic equipment
• Harsh environment voltage regulation

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., C) against the official datasheet to confirm exact tolerance and testing requirements. Ensure procurement channels provide traceability documentation required for military-grade components. Confirm package type matches design specifications before ordering.

Single Zener Diodes Selection Notes

Select this component when a 27 V regulation point is required in extreme thermal conditions. The 1.5 W power rating supports moderate current loads. Verify that the DO-41 through-hole package fits the board layout constraints. Consider the 2% tolerance if tighter voltage stability is needed compared to standard commercial variants.

Single Zener Diodes Part Context

This part belongs to the 1N4475 series of 1.5 W Zener diodes manufactured by Microchip Technology. The series offers various voltage options within the same hermetically sealed package format. It is distinct from surface-mount equivalents like the 1N4475US.

Single Zener Diodes Replacement Considerations

JAN1N4475CUS

Single Zener Diodes FAQ

What is the maximum operating junction temperature?

The maximum operating junction temperature is +175°C.

Is the device suitable for surface mount assembly?

No, the 1N4475C is an axial lead through-hole device packaged in DO-41.