1N4578/TR

Single Zener Diodes Overview

The Microchip Technology 1N4578/TR is a temperature-compensated Zener reference diode with a nominal voltage of 6.4 V. It features a maximum temperature coefficient of 0.001%/°C and operates at a test current of 2.0 mA. The device provides a maximum reverse current of 2 µA at 3 V and a dynamic impedance of 50 Ohms. It is housed in a hermetically sealed glass DO-7 (DO-204AA) axial-leaded package, suitable for through-hole mounting across an operating temperature range of -65°C to +175°C.

Single Zener Diodes Feature Summary

• Temperature compensation design ensures minimal voltage change over a broad operating temperature range
• Hermetically sealed glass case construction for environmental stability
• Flexible axial-leaded terminals compatible with standard through-hole mounting processes

Single Zener Diodes Applications

• Instrumentation circuits requiring stable voltage references
• Precision measurement systems demanding low temperature drift
• Electronic designs necessitating high-stability reference voltages

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against the manufacturer's datasheet to ensure correct packaging configuration. Confirm that the ordering designation aligns with the intended tape and reel specifications. Cross-reference the part number with official Microchip documentation to validate manufacturing origin and compliance status before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a precise 6.4 V reference with tight temperature stability is required. Ensure the circuit design accommodates the specified 2.0 mA test current for optimal performance. Verify that the operating environment falls within the -65°C to +175°C range and that the through-hole package fits the board layout constraints.

Single Zener Diodes Part Context

This device belongs to the 1N4565 through 1N4584A series of Zero-TC Reference Diodes produced by Microsemi, now part of Microchip Technology. The series offers various temperature coefficients and operating currents to suit different precision applications. The 1N4578 variant specifically targets applications needing a balance between low temperature drift and moderate operating current.

Single Zener Diodes Replacement Considerations

Equivalent parts include 1N4578A-1 and 1N4578A-1e3/TR from Microchip Technology.