1N4573-1

Single Zener Diodes Overview

The Microchip Technology 1N4573-1 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 1 mA and dissipates up to 0.5 W. The device utilizes a silicon construction in a glass axial-leaded DO-35 package, optionally featuring an internal metallurgical bond indicated by the suffix. It offers low temperature coefficients for minimal voltage change across temperatures.

Single Zener Diodes Feature Summary

• Temperature compensated design for stable voltage reference
• Internal metallurgical bond option for enhanced reliability
• Glass axial-leaded DO-35 package construction

Single Zener Diodes Applications

• Precision voltage reference circuits
• Temperature compensation networks
• Military and aerospace electronic systems

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as this part number appears across multiple qualified vendors including Microchip, MACOM, and Cobham. Confirm that the JANTX or JAN military qualification matches the project requirements. Ensure the DO-35 package and metallurgical bond specifications align with the design constraints before procurement.

Single Zener Diodes Selection Notes

Select this component when a stable 6.4 V reference with low temperature drift is required in a through-hole configuration. The internal metallurgical bond provides superior mechanical stability compared to standard epoxy-sealed variants. Consider the 1 mA operating current and 0.5 W power dissipation limits during circuit design to ensure proper thermal management.

Single Zener Diodes Part Context

This device belongs to the 1N4565 through 1N4584A-1 series of Zero-TC Reference Diodes. The series provides various nominal voltages and temperature coefficients, with the -1 suffix denoting the internal-metallurgical-bond construction available in JAN, JANTX, and JANTXV qualifications.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' versions of the 1N4573-1 such as those from MACOM or Cobham Semiconductor Solutions, provided they meet the same DO-35 package and military qualification standards.