1N4571/TR

Single Zener Diodes Overview

The Microchip Technology 1N4571/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 dynamic impedance of 100 Ohms at the specified test current. The device operates within a temperature range of -55°C to +100°C, dissipates up to 500 mW, and has a maximum reverse leakage current of 2 µA at 3 V. It is supplied in a DO-7 (DO-204AA) glass axial-leaded package with tin-lead plated terminals.

Single Zener Diodes Feature Summary

• Provides stable reference voltage with minimal change over broad operating temperature ranges
• Features internal metallurgical bonding for enhanced reliability
• Offers flexible axial-leaded mounting terminals for through-hole integration

Single Zener Diodes Applications

• Instrumentation circuits requiring precise voltage references
• Temperature-compensated power supply designs
• Precision measurement equipment

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'TR' corresponds to tape-and-reel packaging as per EIA-296 standards. Confirm the specific manufacturer source, noting historical data from Microsemi Scottsdale Division may apply to this part number lineage. Ensure the component meets required environmental specifications for the intended operating temperature range.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 1.0 mA test current is required. Choose this variant over others in the series based on its specific 0.005 %/°C temperature coefficient and 100 Ohm dynamic impedance characteristics. Ensure the DO-7 package size fits the mechanical constraints of the target assembly.

Single Zener Diodes Part Context

This device belongs to the 1N4565 thru 1N4584A-1 series of Zero-TC Reference Diodes. These components are designed to 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, serving as standard JEDEC registered reference elements.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other parts within the 1N4565-1N4584A-1 series sharing identical electrical parameters. Military qualified equivalents such as JANTX1N4571A-1 or JANTXV1N4571A-1 offer the same performance with additional qualification standards.