B-20L-48B-A

Overview

The KEMET B-20L-48B-A is a solid nickel-zinc ferrite cable core designed for electromagnetic interference suppression. It features a cylindrical geometry with an inner diameter of 2.4 mm, an outer diameter of 4.8 mm, and a length of 4.8 mm. The component operates within a temperature range of -25°C to +85°C and is rated for frequencies up to 300 MHz. This coated variant provides environmental protection while maintaining the magnetic properties necessary for high-frequency noise attenuation in round cable applications.

Feature Summary

• Solid nickel-zinc composition optimized for low and high frequency EMI suppression
• Coated surface finish providing environmental protection for the ferrite material
• Cylindrical free-hanging design suitable for direct installation on round cables

Applications

• General electronic equipment noise suppression
• Round cable filtering applications
• High frequency signal integrity maintenance

Procurement Notes

Verify the specific suffix 'A' against official KEMET documentation to confirm coating specifications and material grades. Ensure the selected part matches the required inner diameter of 2.4 mm for the target cable assembly. Cross-reference the datasheet for precise dimensional tolerances and operating temperature limits before finalizing procurement decisions.

Selection Notes

Select this component when a solid, coated ferrite core is required for round cables operating up to 300 MHz. The B-20 series offers a balance of magnetic performance and mechanical durability. Confirm that the 4.8 mm outer diameter fits within the available spatial constraints of the enclosure or harness layout.

Part Context

This part belongs to the KEMET B-20 series of bead cores specifically engineered for round cables. The series includes both bare and coated variants to suit different environmental exposure levels. The B-20L-48B-A represents the coated version with specific dimensions tailored for standard cable diameters requiring moderate EMI suppression capabilities.

Replacement Considerations

Consult official KEMET substitution guides for verified equivalents. Generic ferrite cores may not match the specific Ni-Zn material characteristics or dimensional tolerances of the B-20 series.