1N4766A-1/TR

Overview

The 1N4766A-1/TR is a single Zener diode manufactured by Microchip Technology, designed for through-hole mounting in DO-35 (DO-204AH) axial leaded packages. It features a nominal Zener voltage of 9.1 V with a tolerance of ±5%. The device has a maximum power dissipation of 250 mW and operates within a temperature range of -65 °C to +175 °C. Key electrical characteristics include a maximum reverse leakage current of 10 µA and a Zener impedance of 350 Ω at the specified test current.

Feature Summary

• Temperature compensated design for stable voltage regulation across operating ranges
• Axial leaded construction suitable for standard through-hole PCB assembly
• High-temperature capability supporting operation up to 175 °C

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in low-power electronics
• Clamping applications in signal conditioning paths

Procurement Notes

Verify the specific suffix '-1' against official Microchip documentation to confirm package type and electrical tolerances, as variations exist within the 1N4766 family. Ensure the required reel quantity matches project needs. Confirm RoHS compliance status via the latest datasheet before finalizing procurement specifications.

Selection Notes

Select this component when a 9.1 V regulated voltage is needed in a compact axial package. The 250 mW power rating limits its use to low-current applications. Compare the 350 Ω impedance value against circuit requirements to ensure adequate regulation under load conditions.

Part Context

This part belongs to the 1N4766 series of temperature-compensated Zener diodes produced by Microchip Technology. The series offers various voltage options in the DO-35 package, providing reliable performance for precision analog applications where thermal stability is critical.

Replacement Considerations

Cross-reference with other manufacturers offering 9.1 V Zener diodes in DO-35 packages with similar 250 mW ratings. Verify that substitute parts meet the same ±5% voltage tolerance and temperature coefficient requirements.