2944666681

Overview

Fair-Rite 2944666681 is a wound bead ferrite component designed for electromagnetic interference suppression. It features an axial termination style and utilizes Fair-Rite Material 43. The impedance is specified at 570 ohms when tested at a frequency of 100 MHz. The unit operates within a temperature range of -55°C to +125°C. Physical dimensions include a length of approximately 10 mm and a diameter of 6 mm.

Feature Summary

• Axial lead configuration for through-hole mounting
• Material 43 composition for high-frequency noise attenuation
• Wound bead construction for cable wrapping

Applications

• Suppression of common-mode noise on single wires
• EMI filtering in electronic assemblies
• Cable noise reduction in signal lines

Procurement Notes

Verify the specific impedance value of 570 ohms at 100 MHz against design requirements. Confirm Material 43 suitability for the target frequency spectrum. Ensure axial lead spacing matches the PCB layout or cable assembly specifications. Check RoHS compliance status if required by project standards.

Selection Notes

Select this part when axial mounting is preferred over radial options. Material 43 offers higher permeability suitable for lower frequency noise compared to Material 31. Verify that the 570 ohm impedance provides adequate attenuation for the specific noise profile. Consider physical size constraints regarding the 10 mm length and 6 mm diameter.

Part Context

This component belongs to the Fair-Rite 29 series of wound beads. It shares the same physical footprint as other variants in the series but differs in material composition and resulting impedance characteristics. The axial orientation distinguishes it from radial counterparts like the 2944666631.

Replacement Considerations

Substitutes with identical impedance and form factor include Fair-Rite 2961666681. Variants using different materials, such as 2944666631 (Material 43, 690 ohms), offer different electrical performance despite similar dimensions.