FB43-287-RC

Overview

The Bourns FB43-287-RC is a solid free-hanging ferrite core designed for cable EMI suppression. It utilizes Material 43, providing effective noise attenuation in the frequency range of 40 MHz to 200 MHz. The component features a cylindrical design with an inner diameter of 2.64 mm and an outer diameter of 7.89 mm. Its physical length measures 7.92 mm. This sleeve-type core is engineered to snap onto cables, offering a simple method for mitigating high-frequency electromagnetic interference without requiring additional mounting hardware.

Feature Summary

• Solid cylindrical construction for direct cable installation
• Material 43 composition optimized for high-frequency noise reduction
• Free-hanging sleeve design eliminates need for external fixtures

Applications

• Suppression of common-mode noise on signal cables
• EMI mitigation in audio and video interconnects
• Noise filtering on data transmission lines within specified frequency bands

Procurement Notes

Verify that the target cable diameter falls within the 2.64 mm inner diameter specification to ensure proper fit. Confirm that the operating environment does not exceed the thermal limits associated with Material 43 ferrites. Check for RoHS compliance status if required by specific regulatory frameworks. Ensure the application frequency aligns with the 40-200 MHz performance window for optimal suppression results.

Selection Notes

Select this component when a non-invasive, snap-on solution is required for cable noise suppression. The Material 43 formulation is suitable for applications targeting frequencies between 40 MHz and 200 MHz. Consider the physical dimensions to ensure adequate clearance around the cable assembly. Evaluate whether the solid core design meets the mechanical robustness requirements compared to split-core alternatives.

Part Context

This part belongs to the Bourns FB43 series of cable ferrites, which are widely used for passive EMI suppression. The FB43 designation indicates the use of Material 43, a standard ferrite compound for general-purpose high-frequency noise control. The suffix -RC typically denotes a reel or tape-and-reel packaging format, though the core function remains identical to other variants in the series.

Replacement Considerations

Direct substitutes include other Material 43 ferrite cores with compatible dimensions, such as the FB73-287-RC from the same manufacturer. Verify that any replacement maintains the 2.64 mm inner diameter and similar outer dimensions to ensure physical compatibility with existing cable assemblies.