2643806402

Overview

The Fair-Rite 2643806402 is a round cable EMI suppression core constructed from 43 Material. It features an inner diameter of 25.4 mm, an outer diameter of 15.5 mm, and a length of 12.7 mm. The component provides a minimum impedance of 53 Ohms at 100 MHz. It is designed for suppressing electromagnetic interference on cables within this frequency range.

Feature Summary

• Constructed from 43 Material ferrite for effective high-frequency noise suppression
• Round cylindrical shape with burnished edges to prevent cable insulation damage
• Guaranteed minimum impedance specification for reliable EMI control

Applications

• Electromagnetic interference suppression on power and signal cables
• Noise filtering in electronic equipment cabling
• Common mode choke applications for round conductors

Procurement Notes

Verify the specific impedance value and material grade against the manufacturer's current datasheet before procurement. Ensure the cable diameter falls within the 25.4 mm inner diameter tolerance. Confirm RoHS compliance status if required by your assembly specifications.

Selection Notes

Select this part when a round core with a 25.4 mm bore is required for EMI suppression. The 43 Material is suitable for frequencies starting around 25 MHz. Verify that the physical dimensions accommodate the target cable bundle size and that the impedance characteristics meet the circuit's noise reduction requirements.

Part Context

This component belongs to Fair-Rite's series of round cable EMI suppression cores. These components are solid ferrite cylinders designed to be slipped over cables to provide common mode choking. They are distinct from split cores or toroidal rings used for different mounting configurations.

Replacement Considerations

Check Fair-Rite catalog for other 43 Material round cores with similar inner diameters. Verify impedance curves match the application frequency. No direct cross-manufacturer substitutes are confirmed in public documentation.