B-9

Overview

The KEMET B-9 is a differential mode choke designed for signal applications, utilizing a through-hole mounting configuration. It functions as a ferrite bead with a normal mode characteristic and a specific bead winding structure. The component supports a current rating of 2.5A and features a physical bead width of 0.4mm. This device is engineered to suppress electromagnetic interference in circuits requiring robust signal integrity management.

Feature Summary

• Provides differential mode chocking capabilities for signal lines
• Utilizes a specialized bead winding construction for effective noise suppression
• Supports high current handling up to 2.5A in normal mode operation

Applications

• Signal line filtering in electronic circuits
• Electromagnetic interference suppression in data transmission paths
• Noise reduction in high-speed digital interfaces

Procurement Notes

Verify the exact part number against manufacturer documentation to ensure compatibility with specific circuit requirements. Confirm that the through-hole package and current ratings align with the design specifications. Check for any updated datasheets or revision changes from KEMET before finalizing procurement decisions.

Selection Notes

Select this component when differential mode noise suppression is required for signal lines carrying up to 2.5A. Ensure the PCB layout accommodates the through-hole footprint and that the operating frequency range matches the ferrite material characteristics. Consider thermal constraints and spatial availability on the board.

Part Context

The B-9 belongs to KEMET's range of passive components focused on signal integrity and EMI mitigation. It complements other ferrite beads and chokes within the portfolio, offering a through-hole solution for applications where surface-mount options are unsuitable or higher mechanical stability is needed.

Replacement Considerations

Consult official KEMET substitution guides for verified equivalent parts. Ensure replacement components match the 2.5A current rating, 0.4mm bead width, and through-hole mounting style. Verify impedance characteristics and frequency response curves to maintain circuit performance.