1N4769/TR

Overview

The Microchip Technology 1N4769/TR is a temperature-compensated Zener diode designed for precision voltage regulation. It features a nominal Zener voltage of 9.1 V with a tight tolerance of 5%. The device operates in the DO-204AA-2 axial through-hole package and dissipates up to 500 mW. It maintains functionality across an extended temperature range from -65°C to +175°C, supported by a low voltage temperature coefficient of 0.0005 %/°C.

Feature Summary

• Temperature compensated design ensures stable voltage output across wide thermal variations
• High reliability construction suitable for demanding industrial environments
• Precision voltage regulation with tight tolerance specifications

Applications

• Precision voltage reference circuits requiring thermal stability
• Industrial control systems operating under extreme temperatures
• Test and measurement equipment calibration references

Procurement Notes

Verify component authenticity against official Microchip Technology documentation before integration. Confirm that the specific suffix matches the required reel packaging configuration. Ensure compliance with project specifications regarding RoHS status and lead content requirements. Validate electrical parameters against the latest datasheet revisions prior to final design approval.

Selection Notes

Select this component when applications demand high thermal stability rather than standard regulation. The low temperature coefficient makes it superior to general-purpose Zeners in varying thermal conditions. Verify that the 500 mW power rating aligns with circuit dissipation needs. Consider the axial package constraints for PCB layout compatibility.

Part Context

This part belongs to the 1N47xx series of Zener diodes manufactured by Microchip Technology. The /TR suffix indicates tape and reel packaging for automated assembly. It represents a specialized variant within the broader family, distinguished by its temperature compensation characteristics compared to standard voltage regulator diodes.

Replacement Considerations

Direct substitutes include other temperature-compensated Zener diodes with matching 9.1 V ratings and similar power dissipation capabilities. Verify pinout compatibility and package dimensions before substitution. Cross-reference thermal coefficients to ensure equivalent performance in the target application environment.