431178181

Overview

Fair-Rite 431178181 is a split core ferrite clamp-on component designed for electromagnetic interference suppression. It utilizes Fair-Rite Material 43, providing an impedance of 130 ohms at 100 MHz. The unit features a round shape with a 4.1 mm inner diameter to accommodate cable diameters up to that size. External dimensions are approximately 12.7 mm in length and 15.9 mm in width. Operating temperature range spans from -55°C to +125°C.

Feature Summary

• Split core design enables installation on existing cables without disconnection
• Material 43 composition provides high permeability for noise suppression
• Round geometry accommodates standard cylindrical conductors

Applications

• Electromagnetic interference suppression on data cables
• Common-mode choke implementation for signal lines
• Noise filtering on power supply wiring

Procurement Notes

Verify the exact part number prefix, as sources indicate potential confusion between 0431178181 and 431178181. Confirm material specification matches Material 43 requirements. Check RoHS compliance status directly with the manufacturer or authorized distributor documentation before procurement.

Selection Notes

Select this component when retrofitting ferrite suppression onto installed cabling is required. Ensure the target cable diameter does not exceed the 4.1 mm inner diameter limit. Verify that the 130 ohm impedance profile at 100 MHz aligns with the specific frequency spectrum of the noise being mitigated.

Part Context

This component belongs to the Fair-Rite snap-it or clip-it style ferrite assemblies. These are distinct from solid toroidal cores as they allow for post-assembly installation. They are commonly used in industrial and commercial electronics for EMC compliance testing and field modifications.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided source data.