1N4573

Single Zener Diodes Overview

The Microchip Technology 1N4573 is a 6.4 V temperature compensated Zener reference diode housed in a DO-7 (DO-204AA) glass axial-leaded package. It operates at a test current of 1.0 mA with a maximum voltage temperature coefficient of 0.001%/°C and a dynamic impedance of 100 Ohms. The device supports an operating temperature range from -55°C to +100°C, features a maximum reverse current of 2 µA at 3 V, and dissipates up to 500 mW.

Single Zener Diodes Feature Summary

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

Single Zener Diodes Applications

• Instrumentation circuits requiring precise voltage references
• Electronic designs demanding low voltage drift across temperatures
• Military qualification applications via JAN/JANTX prefixes

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements for military qualifications or tighter tolerance options when ordering. Confirm package type availability as surface mount equivalents exist with different suffixes. Ensure compatibility with existing circuit test currents to maintain specified temperature coefficients. Check datasheet revisions for updated mechanical dimensions and electrical characteristics before finalizing procurement specifications.

Single Zener Diodes Selection Notes

Select this component for applications requiring a nominal 6.4 V reference with a 0.001%/°C temperature coefficient. Choose based on the required operating temperature range and test current compatibility. Consider tighter tolerance suffixes if standard 5% voltage accuracy is insufficient. Evaluate alternative series members like 1N4572 or 1N4574 if different temperature coefficients or test currents better suit the design constraints.

Single Zener Diodes Part Context

Part of the 1N4565 through 1N4584A-1 series of Zero-TC Reference Diodes manufactured by Microsemi/ Microchip Technology. This series provides various nominal voltages and temperature coefficients for precision reference applications. The 1N4573 specifically targets designs needing moderate temperature stability at a 1.0 mA operating point within the standard axial-leaded form factor.

Single Zener Diodes Replacement Considerations

JAN1N4573, JANTX1N4573, JANTXV1N4573, 1N4573A, 1N4573-1

Single Zener Diodes FAQ

What is the maximum voltage temperature coefficient for the 1N4573?

The maximum voltage temperature coefficient is 0.001%/°C.

Is the 1N4573 available in a hermetically sealed package?

Yes, it is housed in a hermetically sealed glass case (DO-7 package).

How does the -1 suffix affect the part number?

The -1 suffix indicates an internal-metallurgical-bonded construction, also available in military qualifications like JAN, JANTX, and JANTXV.