RA33B4340

Overview

The RA33B4340 is a hinged ferrite core manufactured by Leader Tech Inc., designed for cable noise suppression. It features a flat ribbon shape with a snap-on design for easy installation. The core material is designated as type 33, providing an impedance of 79 Ohms at 30MHz. Internal dimensions are 82.30mm width by 2.60mm height, while external dimensions measure 82.30mm width by 19.89mm height. The unit length is 52mm. This component is intended for free-hanging applications to mitigate electromagnetic interference on cables.

Feature Summary

• Hinged snap-on design allows for quick installation around existing cables without disconnection.
• Flat ribbon geometry accommodates wide or flat cable bundles effectively.
• Type 33 ferrite material provides specific high-frequency noise attenuation characteristics.

Applications

• Suppression of electromagnetic interference on flat ribbon cables
• Noise reduction in data transmission lines
• Cable management and EMI filtering in electronic assemblies

Procurement Notes

Verify the exact impedance value and frequency rating against the official datasheet before integration. Confirm that the internal width matches the target cable bundle dimensions to ensure proper fit. Check for RoHS compliance status if required by your manufacturing standards. Ensure the hinged mechanism functions correctly during assembly to maintain secure closure.

Selection Notes

Select this part when a flat profile ferrite core is needed for wide cables. The 79 Ohm impedance at 30MHz suits specific high-frequency noise profiles. Compare internal dimensions against the cable thickness to avoid loose fits. Consider the snap-on mechanism for ease of maintenance compared to split cores requiring tools.

Part Context

This component belongs to Leader Tech Inc.'s line of cable ferrites, specifically the RA series which denotes hinged designs. These cores are engineered for EMI suppression in various electronic environments. The RA33B4340 variant utilizes material 33, distinguishing it from other materials like 43 or 61 used in different frequency ranges within the same product family.

Replacement Considerations

Public confirmed substitute part numbers include RC33B4340. Verify dimensional compatibility and impedance curves before substitution. Ensure the replacement maintains the hinged design and flat ribbon form factor for identical mounting requirements.