2631103002

Overview

Fair-Rite part number 2631103002 is a solid round cable EMI suppression core belonging to the 26 series. It utilizes Material 31 ferrite composition, providing high impedance in the frequency range of 1 MHz to 300 MHz. The component has a minimum impedance of 340 Ohms at 100 MHz. Physical dimensions include an inner diameter of 19.56 mm (0.770 inches), an outer diameter of 50.8 mm (2.000 inches), and a length of 50.8 mm (2.000 inches).

Feature Summary

• Solid round construction for secure cable retention.
• Material 31 composition optimized for high-frequency noise suppression.
• Guaranteed minimum impedance specifications for reliable filtering.

Applications

• Suppression of common mode noise on cables in amateur radio equipment.
• EMI reduction in industrial automation systems.
• Noise filtering in embedded electronic systems.

Procurement Notes

Verify availability directly with Fair-Rite or authorized distributors as lead times may vary. Confirm that the Material 31 specification matches your frequency requirements. Ensure the 19.56 mm inner diameter accommodates the target cable bundle size without excessive strain.

Selection Notes

Select this part when high attenuation is required above 10 MHz. Material 31 offers superior performance compared to standard materials in the VHF/UHF spectrum. Verify that the physical size fits within the available enclosure space and that the cable diameter falls within the specified bore limits.

Part Context

This component is part of the Fair-Rite 26 series of round cable cores. The numbering system indicates the product class followed by the material grade. Material 31 is specifically engineered for applications requiring significant impedance at higher frequencies, distinguishing it from lower-frequency alternatives.

Replacement Considerations

Substitute parts must match the 340 Ohm @ 100 MHz impedance and Material 31 composition. Alternative Fair-Rite part numbers within the 26 series with compatible dimensions and material grades may be used if exact stock is unavailable.

FAQ

What is the specific frequency range for this core?

The Material 31 composition provides effective suppression in the frequency range of 1 MHz to 300 MHz.

Is this core split or solid?

This is a solid round cable core, designed to be slipped onto cables before termination rather than clamped around existing wires.