431164281

Overview

Fair-Rite model 431164281 is a round cable Snap-It ferrite core assembly designed for electromagnetic interference suppression. It utilizes Material 43, providing an impedance of 310 ohms at 100 MHz and 315 ohms at 1 MHz. The unit features a hinged two-piece polypropylene case with an internal diameter of 6.6 mm (0.260 inches), accommodating cables from 2.5 mm to 25.4 mm. Operating temperature ranges from -55°C to +125°C.

Feature Summary

• Hinged two-piece design allows installation on existing cables without disconnection
• Polypropylene housing provides mechanical protection and environmental resistance
• Material 43 composition offers high permeability for broadband noise attenuation

Applications

• Suppression of common-mode conducted EMI on round cables
• Noise filtering in the 1 MHz to 300 MHz frequency range
• EMI mitigation for bundled wires and round cable assemblies

Procurement Notes

Verify that the specific order matches part number 431164281, as Fair-Rite uses similar numbering for solid cores and other snap-it variants. Confirm material designation is 43 and impedance specifications align with project requirements. Check RoHS compliance status if required by local regulations.

Selection Notes

Select this component when retrofitting EMI suppression onto installed cabling is necessary. The 6.6 mm aperture fits standard round cables up to 25.4 mm diameter. Material 43 is suitable for general-purpose noise reduction where high permeability is prioritized over saturation current handling.

Part Context

This part belongs to the Fair-Rite Round Cable Snap-It series, which are controlled for impedance values rather than magnetic properties alone. These assemblies differ from solid cores by allowing post-installation attachment. They are distinct from openable split cores that require tools or significant force to close.

Replacement Considerations

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