B-20L-44

Overview

The KEMET B-20L-44 is a cylindrical Ni-Zn ferrite bead core designed for round cables. It features an internal diameter of 1.6 mm and an external diameter of 4.4 mm, with a length of 7.0 mm. The component operates at a maximum frequency of 300 MHz. Constructed from solid ferrite material, it serves as a passive electromagnetic interference suppression element. The unit weighs approximately 0.46 grams and is supplied in bare form without additional packaging or mounting hardware.

Feature Summary

• Solid cylindrical construction for direct cable installation
• Ni-Zn ferrite material composition for high-frequency performance
• Designed specifically for round cable geometries

Applications

• Electromagnetic interference suppression on round cables
• High-frequency signal filtering applications up to 300 MHz
• Passive noise reduction in electronic interconnects

Procurement Notes

Verify the specific part number B-20L-44 against official KEMET documentation to confirm dimensional tolerances and material specifications. Ensure compatibility with the target cable diameter of 1.6 mm before integration. Request manufacturer datasheets to validate frequency characteristics and impedance profiles for the intended application environment.

Selection Notes

Select this component when a solid ferrite sleeve is required for cables with a 1.6 mm inner diameter. The Ni-Zn material choice supports operation up to 300 MHz, distinguishing it from Mn-Zn alternatives suitable for lower frequencies. Confirm that the 4.4 mm outer diameter fits within the available spatial constraints of the assembly design.

Part Context

This component belongs to the KEMET B-20 series of bead cores, which are engineered for use on round cables. The series offers various dimensions to accommodate different cable sizes while maintaining consistent ferrite material properties. The B-20L-44 represents a specific size variant within this family, optimized for smaller gauge cabling applications requiring compact EMI suppression solutions.

Replacement Considerations

Consult official KEMET substitution guides for equivalent ferrite cores with matching internal diameters and frequency ratings. Verify that alternative components maintain the same Ni-Zn material composition and physical dimensions to ensure mechanical fit and electrical performance parity.