PC0403-4R7M-RC

Fixed Inductors Overview

The PC0403-4R7M-RC is a surface-mount power inductor from Allied Components International, designed for general-purpose applications. It features an unshielded wirewound construction with a ferrite core, housed in a compact 0403 package measuring 4.0 mm in length, 2.5 mm in width, and 2.8 mm in height. The component provides an inductance of 4.7 µH with a tolerance of ±20%. It supports a maximum DC current of 1.6 A and a saturation current of 2.0 A, while maintaining a low DC resistance of 120 mΩ. Operating within a temperature range of -40°C to +125°C, it utilizes standard SMD terminations for PCB mounting.

Fixed Inductors Feature Summary

• Unshielded wirewound design utilizing a ferrite core for stable magnetic performance
• Compact 0403 surface-mount footprint optimized for space-constrained PCB layouts
• Robust thermal stability supporting operation across extended industrial temperature ranges

Fixed Inductors Applications

• General-purpose power supply circuits
• DC-DC converter modules
• Signal filtering in electronic equipment

Fixed Inductors Procurement Notes

Verify the specific manufacturer designation, as Allied Components International may utilize different part numbering conventions compared to major distributors. Confirm that the 'RC' suffix corresponds to the required tape-and-reel packaging format rather than cut tape or loose bulk. Ensure the requested inductance value matches the 4.7 µH specification exactly, as minor variations exist within the series. Cross-reference the physical dimensions against the PCB footprint library to guarantee mechanical compatibility during assembly.

Fixed Inductors Selection Notes

Select this component when a cost-effective, unshielded inductor is sufficient for non-interference-sensitive designs. The 0403 form factor suits high-density boards where larger shielded inductors cannot fit. Consider the 1.6 A continuous current rating against peak load requirements to prevent saturation. Verify that the lack of shielding does not induce EMI issues in adjacent sensitive traces, as unshielded types radiate more flux than their shielded counterparts.

Fixed Inductors Part Context

This part belongs to the PC0403 series of power inductors, which are characterized by their small rectangular surface-mount package. The series offers various inductance values tailored for general electronics. Unlike automotive-grade components requiring AEC-Q200 certification, this series targets consumer and industrial general-purpose markets. The unshielded architecture distinguishes it from higher-cost shielded alternatives, offering a balance between performance and manufacturing economy.

Fixed Inductors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users must consult manufacturer cross-reference guides for equivalent unshielded 0403 power inductors with matching 4.7 µH specifications.