1N4566E3/TR

Single Zener Diodes Overview

The Microchip Technology 1N4566E3/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, features a maximum reverse current of 2.0 µA at 3 V, and has 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.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage change over broad operating ranges
• Internal metallurgical bonding for structural integrity
• 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 manufacturer designation, as the source datasheet identifies this series under Microsemi. Confirm that the E3 suffix indicates lead-free compliance and the TR suffix specifies tape-and-reel packaging. Ensure the component meets the specific JEDEC registration requirements for the 1N4566 series before procurement.

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. The 0.5 mA test current setting makes it suitable for low-power applications. Verify that the DO-7 package form factor aligns with the target PCB layout and that the operating temperature range covers the intended environment.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A-1 series of zero-TC reference diodes. These devices are designed to provide stable reference voltages with minimal variation across temperature changes. The series includes options for various test currents and tighter tolerance levels to suit different precision circuit requirements.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other parts from the 1N4565 through 1N4584A-1 series with matching electrical characteristics. Military qualified equivalents such as JANTX1N4566A-1 may be considered if higher reliability standards are required.