1N3477A

Single Zener Diodes Overview

The 1N3477A is a silicon unidirectional Zener diode manufactured by Microchip Technology. It features a nominal Zener voltage of 2.2V with a tolerance of 5%. The device is rated for a maximum power dissipation of 0.25W and utilizes the DO-7 glass axial leaded package. This component is designed for general-purpose voltage regulation applications within its specified electrical limits.

Single Zener Diodes Feature Summary

• Provides stable voltage reference at low voltage levels
• Utilizes hermetically sealed glass encapsulation
• Designed for unidirectional current flow

Single Zener Diodes Applications

• Voltage regulation in low-voltage circuits
• Voltage reference applications
• Protection against overvoltage conditions

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required 2.2V Zener specification and 0.25W power rating. Confirm the package type is DO-7. Check RoHS compliance status as indicated in official documentation, noting that some listings may indicate non-compliance. Ensure the manufacturer is identified correctly as Microchip Technology, which acquired the relevant semiconductor assets.

Single Zener Diodes Selection Notes

Select this component when a precise 2.2V reference is required in a compact axial package. Consider the 5% tolerance for application accuracy needs. Evaluate the thermal constraints associated with the 0.25W power dissipation limit in the final circuit design to ensure reliable operation under expected load conditions.

Single Zener Diodes Part Context

This component belongs to the standard Zener diode family used for basic voltage control. It serves as a fundamental discrete semiconductor element for maintaining constant voltage across parallel loads. The DO-7 package offers a traditional through-hole mounting solution suitable for various electronic assemblies requiring small form factor regulation.

Single Zener Diodes Replacement Considerations

Consult official Microchip datasheets for direct equivalents or cross-references. Verify pinout compatibility and electrical parameters such as voltage and power ratings before substituting with other manufacturers' parts.