1N4576-1

Single Zener Diodes Overview

The Microchip Technology 1N4576-1 is a single Zener diode housed in the DO-204AH (DO-35) axial through-hole package. It features a nominal Zener voltage of 6.4 V with a tight tolerance of ±1%. The device supports a maximum power dissipation of 500 mW and exhibits a maximum Zener impedance of 50 Ohms at the test current. Reverse leakage current is specified at 2 µA when measured at 3 V. The component operates within an extended temperature range from -65°C to +175°C, ensuring stability in demanding environments.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a narrow ±1% tolerance for high-accuracy reference applications.
• Capable of operating reliably across a wide thermal range extending up to +175°C junction temperature.
• Utilizes a standard DO-35 axial leaded package suitable for traditional through-hole circuit board mounting.

Single Zener Diodes Applications

• Precision voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in sensitive electronic systems
• Temperature-compensated regulator designs

Single Zener Diodes Procurement Notes

Verify the specific suffix designation during procurement to ensure the correct variant is obtained, as manufacturing changes may affect physical attributes without altering electrical function. Confirm that the required axial lead form factor aligns with the target PCB layout constraints. Cross-reference the manufacturer's latest documentation to validate compliance with current environmental directives before finalizing supply chain agreements.

Single Zener Diodes Selection Notes

Select this component when a highly accurate 6.4 V reference is needed alongside robust thermal performance. The low impedance characteristic makes it suitable for noise-sensitive applications. Ensure the design accounts for the 500 mW power limit under worst-case ambient conditions. This part is appropriate for legacy systems requiring DO-35 compatibility where tighter tolerances than standard Zener diodes are mandatory.

Single Zener Diodes Part Context

This device belongs to the 1N4565–1N4584A-1 series of temperature-compensated Zener diodes manufactured by Microchip Technology. These components are engineered for applications demanding superior voltage stability over varying temperatures compared to standard Zener devices. The series utilizes specialized doping profiles to achieve near-zero temperature coefficients, making them ideal for precision instrumentation and measurement equipment.

Single Zener Diodes Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the 1N4576A-1/TR, 1N4577-1/TR, and 1N4577A-1/TR. Verify that any replacement maintains the identical 6.4 V nominal voltage and ±1% tolerance to ensure circuit compatibility.