1N4765

Overview

The Microchip Technology 1N4765 is a single Zener diode designed for voltage regulation and reference applications. It features a nominal Zener voltage of 9.1 V with a tolerance of ±5%. The device supports a maximum power dissipation of 500 mW at +50°C, with a derating factor of 4 mW/°C above this temperature. It operates within an extended temperature range from -65°C to +175°C. The component utilizes a DO-35 axial through-hole package and incorporates metallurgically bonded double plug construction.

Feature Summary

• Temperature compensated Zener reference design
• Metallurgically bonded double plug construction
• Extended operating temperature capability

Applications

• Voltage regulation circuits
• Temperature compensated reference sources
• Low current range applications (0.5 and 1.0 mA)

Procurement Notes

Verify the specific suffix designation when ordering, as the base part number may correspond to bulk packaging while suffixes like 'A' or '/TR' indicate tolerance variations or reel packaging. Confirm RoHS compliance status, as standard versions may not meet current environmental directives. Cross-reference datasheet revisions to ensure electrical characteristics align with current design requirements before finalizing procurement.

Selection Notes

Select this component for designs requiring stable voltage references in harsh thermal environments due to its wide operating temperature range. Ensure the circuit current remains within the specified low current range of 0.5 to 1.0 mA for optimal performance. Verify that the 500 mW power rating is sufficient for the expected ambient conditions without exceeding the derating limits.

Part Context

This component belongs to the 1N4765 through 1N4774A series of temperature-compensated Zener reference diodes manufactured by Microchip Technology. These devices are engineered for precision applications requiring stable voltage references across extreme temperature variations. The series utilizes advanced metallurgical bonding techniques to enhance reliability and performance consistency.

Replacement Considerations

Direct substitutes include other parts within the same Microchip series such as 1N4766A, 1N4767A, 1N4768A, 1N4769A, 1N4770A, 1N4771A, 1N4772A, 1N4773A, and 1N4774A, which share similar construction and thermal characteristics but differ in nominal Zener voltage.