446173951

Overview

Fair-Rite part number 0446173951 is a Snap-It series hinged ferrite core designed for cable electromagnetic interference suppression. It utilizes Fair-Rite Material 46, providing an impedance of 135 ohms at 100 MHz. The component features a circular design with a hinged snap mechanism for easy installation on existing cables without disconnection. Internal dimensions specify a diameter of 5.11 mm (0.201 inches), accommodating round cables up to this size. External dimensions are 12.80 mm wide by 5.59 mm high and 24.99 mm in length. The unit is free-hanging and RoHS compliant.

Feature Summary

• Hinged snap-on design allows installation on terminated cables without disconnecting wires
• Material 46 composition provides broadband noise suppression characteristics
• Free-hanging mounting style suitable for various cable routing configurations

Applications

• Electromagnetic interference suppression on round cables
• Broadband frequency noise filtering in electronic assemblies
• Post-assembly cable modification where disconnection is impractical

Procurement Notes

Verify the specific impedance value required for your application against the datasheet, as Material 46 performance varies across frequencies. Confirm that the internal diameter of 5.11 mm accommodates the target cable bundle. Ensure the hinged mechanism remains secure during operation. Check for any specific environmental ratings if the deployment involves extreme temperatures or mechanical stress beyond standard indoor conditions.

Selection Notes

Select this component when post-installation access to the cable is necessary, eliminating the need to thread solid cores over connectors. Material 46 is chosen for its balanced permeability and resistivity for general-purpose broadband suppression. Compare the 5.11 mm inner diameter against the maximum cable outer diameter to ensure a proper fit. Consider the external volume constraints to verify the 24.99 mm length fits within the available space.

Part Context

This part belongs to the Snap-It family from Fair-Rite Products Corp., which specializes in split-core ferrites for retrofit applications. Unlike solid cores, these allow magnetic shielding addition after cable assembly. Material 46 is distinct from common Materials 31 or 43, offering different loss characteristics optimized for broader frequency ranges rather than specific narrow bands.

Replacement Considerations

Direct substitutes must match the hinged design, Material 46 composition, and 5.11 mm inner diameter. Solid core equivalents require redesigning cable routing. Verify impedance curves at critical frequencies, as Material 46 behavior differs significantly from other Fair-Rite materials like 31 or 61.