1N4567/TR

Single Zener Diodes Overview

The Microchip Technology 1N4567/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a maximum temperature coefficient of 0.002 %/°C. It operates at a test current of 0.5 mA, features a maximum reverse current of 2 µA at 3 V, and has a dynamic impedance of 200 Ohms. The device is housed in a hermetically sealed DO-7 (DO-204AA) glass package with tin-lead plated terminals. It supports tape and reel packaging via the TR suffix and functions within an operating temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides minimal voltage change over a broad operating temperature range for instrumentation applications
• Features internal metallurgical bonding for structural integrity
• Offers flexible axial-leaded mounting terminals for through-hole integration

Single Zener Diodes Applications

• Instrumentation circuits requiring stable voltage references
• Circuit designs demanding low voltage drift across temperature variations
• Temperature compensated reference applications

Single Zener Diodes Procurement Notes

Verify the specific manufacturer origin, as the 1N4567 series was originally a Microsemi product now under Microchip Technology. Confirm that the TR suffix correctly indicates tape and reel packaging per EIA-296 standards. Ensure the component meets the required military or commercial qualification levels if applicable, as prefixes like JAN or JANTX denote specific reliability grades not included in the base part number.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a tight temperature coefficient near 0.002 %/°C is required. Choose the 1N4567 over other series members based on the specific 0.5 mA test current requirement. Consider the DO-7 package size for through-hole constraints and verify that the 200 Ohm dynamic impedance meets the circuit's noise and stability specifications.

Single Zener Diodes Part Context

The 1N4567 is part of the JEDEC registered 1N4565 through 1N4584 series of zero-TC reference diodes. This family provides various temperature coefficients and test currents while maintaining a consistent 6.4 V nominal voltage. The series includes options for military qualifications and surface mount equivalents, establishing it as a standard reference solution for precision analog design.

Single Zener Diodes Replacement Considerations

Direct replacements include other members of the 1N4565-1N4584 series with matching electrical characteristics. Surface mount equivalents are available by adding the UR-1 suffix to the part number, such as 1N4567AUR-1, which utilizes the DO-213AA package.