1N4574A-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4574A-1/TR is a temperature compensated Zener reference diode housed in the DO-213AA-2 surface mount package. It provides a nominal Zener voltage of 6.4 V with a tolerance of 5% and a maximum reverse leakage current of 2 uA at a test current of 1 mA. The device features a low voltage temperature coefficient of 0.0005%/°C, ensuring minimal voltage drift across temperatures. It operates within a wide range from -65°C to +175°C and dissipates up to 500 mW.

Single Zener Diodes Feature Summary

• Temperature compensated design for stable reference voltage
• Internal metallurgical bond construction for reliability
• Surface mount packaging for automated assembly

Single Zener Diodes Applications

• Precision voltage reference circuits
• Temperature compensation networks
• High-reliability analog signal conditioning

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm package type and qualification level. Ensure the ordering part number matches the required metallurgical bond and tolerance specifications. Cross-reference manufacturer documentation for any recent changes to pinout or environmental compliance status before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a stable 6.4 V reference is required in a compact surface mount form factor. The internal metallurgical bond offers enhanced mechanical stability compared to standard glass passivation. Consider the operating temperature range and power dissipation limits relative to the application environment.

Single Zener Diodes Part Context

This part belongs to the 1N4574 series of zero-temperature-coefficient reference diodes. The -1 suffix indicates an internal metallurgical bond, while the /TR suffix denotes tape and reel packaging. It serves as a surface mount equivalent to axial-leaded versions, maintaining similar electrical characteristics for precision applications.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 6.4 V temperature compensated Zener diodes with matching DO-213AA packages. Verify that alternative parts meet the same 0.0005%/°C temperature coefficient and 500 mW power dissipation requirements.