1N4571A/TR

Single Zener Diodes Overview

The Microchip Technology 1N4571A/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a test current of 1.0 mA. It features a maximum voltage temperature coefficient of 0.005%/°C (0.32 mV/°C) and a maximum reverse current of 2 µA at 3 V. The device has a dynamic impedance of 100 Ohms and operates within a temperature range of -55°C to +100°C. Packaged in a DO-7 (DO-204AA) axial leaded case, it dissipates 500 mW DC power and is supplied in tape and reel format.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage change over operating ranges
• Internal metallurgical bonding for structural integrity
• Hermetically sealed glass case construction
• ESD nonsensitive per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• Instrumentation requiring stable voltage references
• Circuit designs demanding low temperature drift
• Precision measurement systems

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against the manufacturer's ordering guide. Confirm that the TR suffix aligns with the required tape and reel packaging specifications. Ensure the component meets all necessary environmental and military qualification standards if applicable to the target application.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with tight temperature stability is required. Consider the 1.0 mA test current and 100 Ohm impedance for circuit compatibility. Verify package constraints for the DO-7 form factor and ensure the operating temperature range suits the environment.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A series of zero-TC reference diodes. These devices provide a selection of temperature coefficients ranging from 0.01%/°C to 0.0005%/°C. The series includes various operating currents and tolerance options, supporting diverse precision analog applications.

Single Zener Diodes Replacement Considerations

Consult the official datasheet for qualified military equivalents such as JANTX1N4571A-1. Surface mount alternatives are available in the DO-213AA package with appropriate suffixes. Verify electrical parameters match before substitution.

Single Zener Diodes FAQ

What is the maximum voltage temperature coefficient?

The maximum voltage temperature coefficient is 0.005%/°C or 0.32 mV/°C.

What is the recommended test current?

The specified Zener test current (IZT) is 1.0 mA.