1N4565/TR

Single Zener Diodes Overview

The Microchip Technology 1N4565/TR is a temperature compensated Zener reference diode with a nominal voltage of 6.4 V and a tolerance of +/- 5%. It operates at a test current of 0.5 mA, featuring a maximum temperature coefficient of 0.01%/°C (0.64 mV/°C) and a dynamic impedance of 200 ohms. The device has a maximum reverse leakage current of 2 µA at 3 V and supports an operating temperature range from -65°C to +75°C. Packaged in the DO-7 (DO-204AA) axial leaded format, it is supplied in tape and reel configuration.

Single Zener Diodes Feature Summary

• Provides stable voltage reference with minimal change over broad operating temperature ranges
• Features internal metallurgical bonding for enhanced reliability
• Offers flexible axial-leaded mounting terminals suitable for various circuit designs

Single Zener Diodes Applications

• Instrumentation requiring precise voltage references
• Circuit designs demanding low voltage drift with temperature
• Temperature compensated reference applications

Single Zener Diodes Procurement Notes

Verify that the ordering suffix TR corresponds to the tape and reel packaging format as specified in the datasheet mechanical section. Confirm the manufacturer designation aligns with the source documentation provided. Ensure the component meets the specific JEDEC registration requirements for the 1N4565 series before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 0.01%/°C temperature coefficient is required. The 0.5 mA test current setting distinguishes it from higher current variants in the series. Consider the DO-7 package dimensions and axial lead configuration for board layout compatibility. Verify that the -65°C to +75°C operating range satisfies the environmental constraints of the target application.

Single Zener Diodes Part Context

This part belongs to the 1N4565 through 1N4584A-1 series of Zero-TC Reference Diodes manufactured by Microsemi Scottsdale Division, now part of Microchip Technology. The series provides nominal 6.4 V outputs with varying temperature coefficients and test currents. These glass axial-leaded diodes are designed for high stability and are available in military qualifications such as JAN, JANTX, and JANTXV.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same series include 1N4565A, which shares identical electrical characteristics but offers a wider operating temperature range of -55°C to +100°C. Other series members like 1N4566 or 1N4567 provide tighter temperature coefficients but may require different biasing conditions.