1N4764UR-1

Overview

The Microchip Technology 1N4764UR-1 is a surface-mount Zener diode housed in the DO-213AB (MELF) package. It features a nominal Zener voltage of 100V with a standard tolerance of ±10%. The device is rated for a power dissipation of 1W and operates within an extended temperature range from -65°C to +175°C. Constructed with silicon, it provides unidirectional voltage regulation suitable for high-reliability applications requiring hermetic sealing.

Feature Summary

• Hermetically sealed glass construction for enhanced reliability
• Extended operating temperature range up to 175°C
• Surface mount MELF package design

Applications

• High-reliability voltage regulation circuits
• Power supply protection systems
• Harsh environment electronic assemblies

Procurement Notes

Verify the specific suffix requirements against the official datasheet to ensure correct tolerance and packaging specifications. Confirm that the DO-213AB package dimensions align with your PCB footprint constraints. Check for any source control drawing requirements if the application demands military-grade qualification standards.

Selection Notes

Select this component when a 100V Zener reference is required in a compact surface-mount form factor. The wide temperature range makes it suitable for demanding industrial or aerospace environments. Ensure the 1W power rating accommodates the expected surge and continuous current loads in the target circuit design.

Part Context

This part belongs to the 1N47xx series of glass-encapsulated Zener diodes manufactured by Microchip Technology. The series offers various voltage options within the same mechanical footprint, allowing for design flexibility while maintaining consistent thermal and electrical characteristics across different voltage ratings.

Replacement Considerations

Direct substitutes include other manufacturers' DO-213AB 100V 1W Zener diodes with matching ±10% tolerance. Verify pinout compatibility and thermal resistance values before substitution.