1N4472D

Single Zener Diodes Overview

The Microchip Technology 1N4472D is a single Zener diode rated for 20 V nominal voltage with a 1% tolerance. It features a maximum power dissipation of 1.5 W and operates within a junction temperature range of -65°C to +175°C. The device exhibits a maximum Zener impedance of 12 Ohms and a reverse leakage current of 50 nA at 16 V. It utilizes an axial DO-41 package and is designed for through-hole mounting.

Single Zener Diodes Feature Summary

• Military-grade qualification per MIL-PRF-19500/406 standards
• High-reliability voidless hermetically sealed glass construction
• Wide operating temperature range suitable for extreme environments

Single Zener Diodes Applications

• High-reliability aerospace systems
• Defense electronics requiring strict failure tolerance
• Precision voltage regulation in harsh environments

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., D, US, TR) against the datasheet to ensure correct packaging and qualification level. Confirm that the procurement source provides valid traceability documentation required for military-grade components. Ensure the ordering part number matches the exact mechanical and electrical specifications defined in the official Microchip Technology datasheet.

Single Zener Diodes Selection Notes

Select this component when a precise 20 V reference is required in space-constrained or high-vibration applications. The axial leaded format facilitates easy integration into legacy through-hole designs. Consider the 1% tolerance for circuits demanding tight voltage stability without additional compensation.

Single Zener Diodes Part Context

This component belongs to the 1N4470US–1N4496US series of 1.5 W glass Zener diodes. These devices are industry-recognized for their robustness and are available in various tolerance levels including 5%, 2%, and 1%. The series supports voltages from 3.3 V to 200 V, providing versatile options for critical voltage regulation tasks.

Single Zener Diodes Replacement Considerations

JAN1N4472DUS/TR is listed as a parameter-equivalent alternative.