1N4577

Single Zener Diodes Overview

The Microchip Technology 1N4577 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 2.0 mA with a maximum voltage temperature coefficient of 0.002 %/°C. The device features internal metallurgical bonding and hermetically sealed construction, supporting an operating temperature range from -65°C to +175°C.

Single Zener Diodes Feature Summary

• Provides minimal voltage change over a broad operating temperature range for instrumentation applications
• Features internal metallurgical bonding within a hermetically sealed glass case
• Offers flexible axial-leaded mounting terminals suitable for through-hole integration

Single Zener Diodes Applications

• Instrumentation circuits requiring stable voltage references
• Electronic designs demanding low voltage drift across wide temperature ranges
• Military qualification systems utilizing JAN or JANTX prefixes

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source, as the component originates from Microsemi which is now part of Microchip Technology. Confirm that the ordering suffix matches the required military qualification level if applicable. Ensure the package type aligns with the DO-7 specification. Check for RoHS compliance status depending on the production batch. Validate the exact temperature coefficient requirements against the datasheet specifications.

Single Zener Diodes Selection Notes

Select this component when a nominal 6.4 V reference with a 0.002 %/°C temperature coefficient is required. The 2.0 mA test current setting balances power dissipation and stability. Consider the DO-7 package for standard axial-leaded mounting needs. Evaluate the -65°C to +175°C operating range against environmental constraints. Compare dynamic impedance characteristics with other series members if tighter tolerances are needed.

Single Zener Diodes Part Context

This device belongs to the 1N4565 through 1N4584A-1 series of zero-TC reference diodes. The series provides various temperature coefficients ranging from 0.01%/°C to 0.0005%/°C. All parts share a nominal 6.4 V output and utilize internal metallurgical bonding. The series supports multiple operating currents including 0.5 mA, 1.0 mA, 2.0 mA, and 4.0 mA.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N4577A and variants with different tolerance suffixes such as 1N4577-2%. Military qualified versions like JANTX1N4577A-1 offer enhanced reliability standards.