1N4581A-1/TR

Single Zener Diodes Overview

The Microchip Technology 1N4581A-1/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a tolerance of ±5%. It operates at a test current of 4 mA, dissipating up to 500 mW of power. The device features a maximum reverse leakage current of 2 µA and a Zener impedance of 25 Ohms. Designed for surface-mount applications, it utilizes the DO-213AA-2 (SOD-80) package. The component supports an extended operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Temperature compensated design ensures stable voltage reference across wide thermal variations
• High reliability construction suitable for demanding electronic environments
• Surface-mount packaging facilitates automated assembly processes

Single Zener Diodes Applications

• Precision voltage reference circuits
• Temperature compensated oscillator designs
• High-reliability military and aerospace systems

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm package type and qualification level. Ensure compatibility with surface-mount assembly requirements. Confirm that the selected variant meets all necessary environmental and performance specifications for the intended application before finalizing procurement decisions.

Single Zener Diodes Selection Notes

Select this component when a stable 6.4 V reference is required in a compact surface-mount form factor. Consider the ±5% tolerance and 4 mA test current parameters during circuit design. Evaluate the extended temperature range capabilities to ensure suitability for harsh operating conditions compared to standard commercial alternatives.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584 series of zero-temperature-coefficient reference diodes. These devices provide a selection of nominal voltages with minimal voltage change over temperature. The series includes various package options and military qualifications to support diverse high-reliability applications.

Single Zener Diodes Replacement Considerations

Direct substitutes include other 6.4 V temperature-compensated Zener diodes in compatible packages. Verify electrical parameters such as test current and impedance match. Cross-reference with manufacturer-specific equivalents to ensure functional compatibility.