1N4759UR-1

Overview

The Microchip Technology 1N4759UR-1 is a Zener diode voltage regulator designed for surface-mount applications. It utilizes the DO-213AA-2 (SMB) package and supports a maximum power dissipation of 1 W. The device operates within an extended temperature range from -65°C to +175°C, ensuring reliability in harsh environments. It features a nominal Zener voltage of 82 V with a tolerance of 10%. This component is engineered for stable voltage regulation in compact electronic circuits requiring high thermal stability.

Feature Summary

• Surface-mount construction in a compact DO-213AA-2 package
• Extended operating temperature range up to +175°C
• High power dissipation capability of 1 W
• Temperature-compensated Zener voltage regulation

Applications

• Voltage reference circuits
• Overvoltage protection
• Power supply regulation

Procurement Notes

Verify the specific suffix UR-1 against official Microchip documentation to confirm the exact tape-and-reel packaging configuration and manufacturing lot details. Ensure that the DO-213AA-2 footprint matches your PCB design guidelines. Confirm RoHS compliance status through the current datasheet, as regulatory markings may vary by production batch.

Selection Notes

Select this component when a 1 W surface-mount Zener diode with an 82 V breakdown voltage is required. The wide operating temperature range makes it suitable for industrial or automotive environments where standard commercial-grade parts may fail. Compare impedance and leakage current specifications against circuit requirements to ensure adequate regulation performance under load variations.

Part Context

This part belongs to the 1N47xx series of Zener diodes manufactured by Microchip Technology. The series offers various voltage ratings in both through-hole and surface-mount packages. The UR-1 designation indicates a specific surface-mount variant optimized for automated assembly processes while maintaining the electrical characteristics of the traditional axial leaded equivalents.

Replacement Considerations

Cross-reference with other manufacturers offering DO-213AA-2 packaged Zener diodes rated at 82 V and 1 W. Verify pinout compatibility and thermal resistance values before substitution. Ensure that any alternative part meets the same -65°C to +175°C operating temperature specification.