2643801002

Overview

The Fair-Rite 2643801002 is a solid round cable EMI suppression core manufactured from Material 43. It features a cylindrical geometry with an inner diameter of 19.00 mm (0.748 inches), an outer diameter of 29.01 mm (1.142 inches), and a length of 7.49 mm (0.295 inches). The component provides a guaranteed minimum impedance of 47 ohms at 100 MHz. It operates within a temperature range of -55°C to +90°C.

Feature Summary

• Solid free-hanging construction for direct cable installation
• Material 43 composition optimized for noise suppression in the frequency range up to approximately 25 MHz
• Controlled impedance characteristics ensure consistent electromagnetic interference attenuation

Applications

• Suppression of common-mode noise on power cables
• EMI filtering on data transmission lines
• Noise reduction on internal wiring harnesses in electronic equipment

Procurement Notes

Verify that the required cable diameter falls within the 19.00 mm inner diameter specification before procurement. Confirm that the operating environment remains within the -55°C to +90°C thermal limits. Ensure the application frequency spectrum aligns with the Material 43 performance profile, as this material is distinct from other Fair-Rite compositions designed for different frequency bands.

Selection Notes

Select this part when a snap-on or slide-on ferrite solution is required for cables with diameters near 19 mm. Material 43 is specifically chosen for applications where noise frequencies are below 25 MHz. Compare against other dimensions in the 264380 series if the cable size differs. Verify that the 47-ohm impedance at 100 MHz meets the specific circuit requirements for high-frequency noise attenuation.

Part Context

This component belongs to the Fair-Rite Round Cable EMI Suppression Cores family. These cores are designed to be slipped over cables to provide passive noise suppression without requiring soldering or complex mounting hardware. The product line utilizes various magnetic materials to target specific frequency ranges, with Material 43 being a standard choice for general-purpose low-frequency noise control.

Replacement Considerations

Direct substitutes include other Fair-Rite cores using Material 43 with identical or compatible physical dimensions. Check part numbers such as 2643801102 or 2643801202 if dimensional variations are acceptable. Ensure any replacement maintains the same impedance characteristics at the target frequency.