2643000801

Overview

Fair-Rite 2643000801 is a solid cylindrical ferrite core designed for EMI suppression. It utilizes Material 43, providing effective broadband noise attenuation in the 25-300 MHz frequency range. The component features a guaranteed minimum impedance of 92 ohms at 100 MHz. Physical dimensions include an outer diameter of 7.5 mm (0.296 inches), an inner diameter of 2.5 mm (0.094 inches), and a length of 7.5 mm (0.297 inches). This free-hanging bead is constructed from nickel-zinc ferrite to suppress electromagnetic interference on cables.

Feature Summary

• Solid cylindrical construction for secure cable mounting
• Material 43 composition optimized for high-frequency noise absorption
• Guaranteed minimum impedance specification ensures consistent performance

Applications

• Suppression of common-mode noise on data cables
• EMI filtering on power supply lines
• Noise reduction on communication interface cables

Procurement Notes

Verify the specific impedance value against the manufacturer's current datasheet, as specifications may vary by revision. Confirm that the inner diameter accommodates the target cable bundle without excessive force. Ensure the material grade matches the intended frequency range requirements for your specific application design.

Selection Notes

Select this part when broadband suppression between 25 MHz and 300 MHz is required. Material 43 is suitable for general-purpose EMI/RFI applications. Verify that the physical dimensions fit within the available space constraints of the assembly. Consider the thermal environment, as ferrite properties can change with temperature.

Part Context

This component belongs to Fair-Rite's 26 series of ferrite cores. The 26 series encompasses various shapes including split rounds, flat ribbons, and solid beads. These components are widely used in electronics manufacturing for passive noise control. The 2643000801 specifically represents a solid round configuration within this extensive product family.

Replacement Considerations

Direct substitutes must match the 92 ohm @ 100 MHz impedance and Material 43 composition. Alternative parts should have compatible inner and outer diameters for mechanical fit. Verify that any replacement maintains the same broadband frequency characteristics.