1N4579-1

Single Zener Diodes Overview

The Microchip Technology 1N4579-1 is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V and a maximum power dissipation of 500 mW. It features an internal metallurgical bond, indicated by the -1 suffix, and operates within a wide temperature range from -65°C to +175°C. The device exhibits a low voltage temperature coefficient of 0.0005%/°C and maintains a test current of 2 mA. Key electrical parameters include a reverse leakage current of 2 µA and a Zener impedance of 50 Ohms.

Single Zener Diodes Feature Summary

• Temperature compensated design for minimal voltage change across operating temperatures
• Internal metallurgical bond construction for enhanced reliability
• Wide thermal operating range suitable for demanding environments

Single Zener Diodes Applications

• Precision voltage reference circuits
• Temperature compensated oscillator references
• High-reliability military and aerospace systems

Single Zener Diodes Procurement Notes

Verify the specific manufacturer documentation for the 1N4579-1 variant to confirm compliance with JEDEC registration standards and MIL-PRF-19500/452 qualifications if required. Ensure the DO-35 package dimensions match the target PCB layout constraints before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a stable 6.4 V reference with tight temperature compensation is required. The internal metallurgical bond distinguishes it from standard variants, offering improved mechanical stability. Consider the 500 mW power rating and axial leaded package form factor during circuit board integration.

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 a selection of nominal voltages centered around 6.4 V with extremely low temperature coefficients. The series is widely recognized for its use in applications requiring high precision and stability over varying thermal conditions.

Single Zener Diodes Replacement Considerations

Consult official datasheets for direct equivalents such as the JAN or JANTX prefixed versions which share the same metallurgical bond construction. Surface mount alternatives may be available in DO-213AA packages with appropriate suffixes, but verify pinout compatibility and thermal characteristics.