1N4579A/TR

Single Zener Diodes Overview

The Microchip Technology 1N4579A/TR is a temperature compensated Zener reference diode with a nominal voltage of 6.4 V and a maximum temperature coefficient of 0.0005 %/°C. It operates at a test current of 2.0 mA, features a maximum reverse current of 2 µA at 3 V, and has a dynamic impedance of 50 Ohms. The device dissipates 500 mW, functions within -65°C to +175°C, and uses a DO-7 (DO-204AA) package.

Single Zener Diodes Feature Summary

• Provides minimal voltage change over a broad operating temperature range for instrumentation
• Temperature coefficient selection available from 0.01%/ºC to 0.0005%/ºC
• Flexible axial-leaded mounting terminals

Single Zener Diodes Applications

• Instrumentation requiring stable voltage references
• Circuit designs demanding low voltage drift with temperature
• Precision analog signal conditioning

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against the official datasheet before ordering. Confirm that the TR suffix aligns with tape and reel packaging standards per EIA-296. Ensure the selected part number matches the required tolerance and military qualification levels if applicable.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with ultra-low temperature drift is required. Compare the 2.0 mA test current against circuit biasing capabilities. Verify that the 50 Ohm dynamic impedance meets the noise and stability requirements of the target application design.

Single Zener Diodes Part Context

This device belongs to the 1N4565 thru 1N4584A-1 series of Zero-TC Reference Diodes. These components are designed for applications requiring high stability and minimal voltage change with temperature variations across wide operating ranges.

Single Zener Diodes Replacement Considerations

Consult the manufacturer's cross-reference documentation for verified substitutes. Ensure any replacement maintains the 6.4 V nominal voltage and equivalent temperature coefficient specifications.

Single Zener Diodes FAQ

What is the maximum temperature coefficient for the 1N4579A?

The maximum temperature coefficient is 0.0005 %/°C.

How is the TR suffix defined for this component?

The TR suffix indicates the device is supplied in tape and reel packaging standard per EIA-296.