1N4573/TR

Single Zener Diodes Overview

The Microchip Technology 1N4573/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V. It operates at a test current (IZT) of 1.0 mA and features a maximum voltage temperature coefficient of 0.001 %/°C (0.06 mV/°C). The device has a maximum reverse leakage current of 2 µA at 3 V and a dynamic impedance of 100 Ohms at the test current. It is housed in a DO-7 (DO-204AA) glass axial-leaded package, dissipates up to 500 mW, and operates within a temperature range of -55°C to +100°C.

Single Zener Diodes Feature Summary

• Provides minimal voltage change over a broad operating temperature range for instrumentation and other circuit designs requiring a voltage reference
• Temperature coefficient selections available from 0.01%/ºC to 0.0005%/ºC
• Flexible axial-leaded mounting terminals

Single Zener Diodes Applications

• Instrumentation circuits requiring stable voltage references
• Circuit designs demanding minimal voltage change over temperature
• General-purpose voltage regulation applications

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'TR' corresponds to the tape and reel packaging option as specified in the datasheet. Confirm the specific temperature range and tolerance requirements match the standard JEDEC registered specifications provided. Ensure compatibility with the DO-7 package dimensions for your PCB layout.

Single Zener Diodes Selection Notes

Select this component when a 6.4 V reference with a 0.001 %/°C temperature coefficient is required. The 1.0 mA test current setting offers a balance between power dissipation and stability. Consider the DO-7 through-hole package for manual assembly or automated insertion processes compatible with axial leads.

Single Zener Diodes Part Context

This part belongs to the 1N4565 thru 1N4584A-1 series of Zero-TC Reference Diodes manufactured by Microsemi (now Microchip Technology). The series provides various temperature coefficients and operating currents for 6.4 V nominal voltage applications. These diodes are hermetically sealed in glass cases and are suitable for high-reliability environments.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers include 1N4573A.

Single Zener Diodes FAQ

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

The maximum voltage temperature coefficient is 0.001 %/°C, which equates to 0.06 mV/°C.

Does the 1N4573/TR have military qualifications?

The standard 1N4573 does not inherently possess military qualifications. Military versions require specific prefixes (JAN, JANTX, JANTXV) and the '-1' suffix for internal metallurgical bonding.