1N4573UR-1

Single Zener Diodes Overview

The 1N4573UR-1 is a temperature-compensated Zener reference diode manufactured by Microchip Technology. It features a nominal voltage of 6.4 V with a tight tolerance of ±0.1%. The device is designed for surface-mount applications in the DO-213AA package and has a power dissipation rating of 500 mW. It operates at a test current of 1 mA and exhibits low leakage current characteristics, ensuring stable performance as a precision voltage reference.

Single Zener Diodes Feature Summary

• Provides a stable 6.4 V nominal reference voltage with high accuracy
• Features temperature compensation for minimal voltage drift over operating ranges
• Utilizes a compact surface-mount DO-213AA package for automated assembly

Single Zener Diodes Applications

• Precision voltage reference circuits
• Temperature compensated measurement systems
• High-accuracy analog signal conditioning

Single Zener Diodes Procurement Notes

Verify the specific suffix UR-1 to confirm the surface-mount DO-213AA package and metallurgical bond construction. Ensure the order includes the TR designation if tape-and-reel packaging is required for production lines. Cross-reference datasheets from Microchip or authorized distributors to confirm the latest revision status and exact electrical tolerances before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a precise 6.4 V reference is needed in a surface-mount format. The ±0.1% tolerance makes it suitable for applications requiring tighter accuracy than standard Zener diodes. Consider the DO-213AA footprint constraints and thermal management requirements associated with the 500 mW power rating during circuit design.

Single Zener Diodes Part Context

This part belongs to the 1N4573 series of Zero-TC Reference Diodes. The series offers various operating currents and package options, including axial-leaded DO-35 variants. The -1 suffix indicates internal metallurgical bonding, enhancing reliability compared to standard glass-sealed versions. This specific model adapts that technology for modern surface-mount manufacturing processes.

Single Zener Diodes Replacement Considerations

Direct replacements include other 6.4 V temperature-compensated Zener diodes in the DO-213AA package with comparable ±0.1% tolerance. Verify pinout compatibility and thermal resistance values. Alternative packages such as SOD-80 may require adapter considerations unless the board layout supports multiple form factors.