1N4566AE3/TR

Single Zener Diodes Overview

The Microchip Technology 1N4566AE3/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. It operates at a test current of 0.5 mA, featuring a maximum reverse current of 2 µA at 3 V and a dynamic impedance of 200 Ω. The device is housed in a DO-7 (DO-204AA) glass axial-leaded package and supports tape-and-reel packaging via the TR suffix.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage change over 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
• Precision measurement systems

Single Zener Diodes Procurement Notes

Verify that the 'TR' suffix confirms tape-and-reel packaging per EIA-296 standards. Confirm the manufacturer origin as Microsemi or its successor entity to ensure compliance with the specified JEDEC registration and MIL-PRF-19500/452 qualification options if required by the design.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a tight temperature coefficient of 0.005%/°C is required. Ensure the circuit allows for the specified 0.5 mA test current to maintain optimal voltage-temperature stability. Verify that the DO-7 through-hole package fits the board layout constraints.

Single Zener Diodes Part Context

This part belongs to the 1N4565 thru 1N4584A-1 series of Zero-TC Reference Diodes. These devices provide a selection of 6.4 V nominal voltages with varying temperature coefficients ranging from 0.01%/°C to 0.0005%/°C. The series includes military qualifications and multiple operating currents.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same series include 1N4565A, 1N4567A, 1N4568A, and 1N4569A, provided their specific temperature coefficients and test currents align with the application requirements.