1N4761UR-1

Overview

The Microchip Technology 1N4761UR-1 is a Zener voltage regulator diode designed for surface mount applications. It utilizes the DO-213AA (SMB) package and operates with a nominal Zener voltage of 75 V at a test current of 3.3 mA. The device features a power dissipation rating of 1 W and maintains a standard voltage tolerance of ±5%. It is constructed using silicon technology and supports a wide operating temperature range, ensuring reliable performance in various electronic circuits requiring precise voltage regulation.

Feature Summary

• Surface mount construction utilizing the DO-213AA package for compact circuit integration
• High-reliability internal metallurgical bond between the die and metal slugs
• Designed as a surface mount equivalent to the JEDEC registered 1N4761 series

Applications

• Voltage regulation in industrial control systems
• Overvoltage protection in automotive electronics
• Reference voltage sources in aerospace and defense equipment

Procurement Notes

Verify the specific suffix UR-1 against official Microchip documentation to confirm the exact screening level and package variant. Ensure compatibility with surface mount assembly processes. Confirm RoHS compliance status and any high-reliability screening requirements relevant to the intended application environment before finalizing procurement.

Selection Notes

Select this component when a 1 W surface mount Zener diode with 75 V regulation is required. The DO-213AA package offers a direct footprint alternative to through-hole equivalents. Consider the ±5% tolerance and 3.3 mA test current specifications during circuit design to ensure accurate voltage reference performance under expected load conditions.

Part Context

This part belongs to the Microchip Technology Zener Diodes category within the Diodes & Rectifiers subcategory. It is part of a broader family of voltage regulator diodes that includes both through-hole and surface mount variants. The manufacturer provides comprehensive datasheets and ECAD models to support design integration and verification for engineering applications.

Replacement Considerations

The 1N4761PE3/TR8 serves as a compatible alternative from Microsemi Corporation. Both devices share identical electrical characteristics, including 75 V Zener voltage, 1 W power rating, and ±5% tolerance. Verify package compatibility, as the PE3 variant uses the DO-204AL (DO-41) through-hole package rather than the surface mount DO-213AA form factor.