1N4566/TR

Single Zener Diodes Overview

The Microchip Technology 1N4566/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 and dynamic impedance of 200 Ω. The device is housed in a hermetically sealed 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 analog signal processing

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix to confirm the tape-and-reel packaging configuration. Ensure the selected part number aligns with the required military or commercial qualification levels if applicable. Confirm that the DO-7 package dimensions match the target PCB layout constraints before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 0.005%/°C temperature coefficient is required. The 0.5 mA test current setting makes it suitable for low-power applications. Verify compatibility with existing circuit biasing networks to maintain optimal voltage-temperature stability during operation.

Single Zener Diodes Part Context

This device belongs to the 1N4565 through 1N4584A-1 series of zero-TC reference diodes manufactured by Microsemi/Microchip Technology. The series offers various operating currents and tighter tolerance options. The 1N4566 variant specifically targets applications needing moderate temperature compensation at low test currents.

Single Zener Diodes Replacement Considerations

Direct substitutes include other parts within the 1N4565-1N4584A-1 series with matching 6.4 V ratings and 0.005%/°C coefficients. Cross-reference with JAN, JANTX, or JANTXV qualified versions if military specifications are required.