1N4571A-1E3/TR

Single Zener Diodes Overview

The Microchip Technology 1N4571A-1E3/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a maximum temperature coefficient of 0.005%/°C (0.32 mV/°C). It operates at a test current of 1.0 mA, features a maximum reverse current of 2 µA at 3 V, and has a dynamic impedance of 100 Ohms. The device dissipates 500 mW in a DO-7 package, supports an operating range from -65°C to +175°C, and utilizes tape-and-reel packaging.

Single Zener Diodes Feature Summary

• Temperature compensation for minimal voltage change across broad operating ranges
• Internal metallurgical bonding for structural integrity
• Hermetically sealed glass case construction

Single Zener Diodes Applications

• Instrumentation requiring stable voltage references
• Circuit designs demanding low temperature drift
• Military qualification applications via JAN/JANTX prefixes

Single Zener Diodes Procurement Notes

Verify the specific suffix configuration against official datasheets to confirm compliance with RoHS standards and tape-and-reel packaging requirements. Ensure that ordering specifications align with the manufacturer's JEDEC registration protocols and military qualification prefixes if applicable.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 0.005%/°C temperature coefficient is required. Confirm that the 1.0 mA test current and 100 Ohm dynamic impedance meet circuit stability needs. Verify package compatibility with the DO-7 axial lead format.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A-1 series of Zero-TC Reference Diodes. These devices provide nominal 6.4 V outputs with various temperature coefficients ranging from 0.01%/°C to 0.0005%/°C. The series includes options for different operating currents and tighter voltage tolerances.

Single Zener Diodes Replacement Considerations

Substitutes within the same series include 1N4570A-1 or 1N4572A-1, provided their respective temperature coefficients and test currents match the design requirements.

Single Zener Diodes FAQ

What is the maximum temperature coefficient for the 1N4571A?

The maximum temperature coefficient is 0.005%/°C, equivalent to 0.32 mV/°C.

How is polarity defined for this reference diode?

The banded end must be positive with respect to the opposite end during operation.