EXC-28BA121U

Chip Ferrite Bead Overview

The EXC-28BA121U is a four-element ferrite bead array manufactured by Panasonic Electronic Components. It features a 0804 (2010 Metric) surface mount package with an eight-pad configuration. The component provides an impedance of 120 Ohms and supports a rated current of 100 mA. Its DC resistance is specified at a maximum of 500 mΩ. Designed for electromagnetic interference suppression, this chip bead core array integrates four independent lines within a compact footprint suitable for high-density circuit board layouts.

Chip Ferrite Bead Feature Summary

• Integrates four independent ferrite bead channels in a single compact package
• Provides effective electromagnetic interference suppression across multiple signal lines
• Utilizes a surface mount design compatible with automated assembly processes

Chip Ferrite Bead Applications

• Electromagnetic interference suppression in electronic circuits
• Signal line protection in consumer electronics
• Noise filtering in industrial control systems

Chip Ferrite Bead Procurement Notes

Verify the current manufacturing status as sources indicate this part may be obsolete. Confirm availability through authorized distributors or check for officially listed substitute components if direct procurement is not possible. Ensure the specific package type and electrical parameters match the original design requirements before sourcing alternatives.

Chip Ferrite Bead Selection Notes

Select this component when multi-line noise suppression is required in space-constrained designs. The 0804 package offers a balance between performance and board area. Consider the 100 mA current rating and 120 Ohm impedance to ensure compatibility with the target signal lines and power constraints of the application.

Chip Ferrite Bead Part Context

This ferrite bead array belongs to Panasonic's passive component portfolio, specifically designed for EMI suppression. Ferrite beads are essential for maintaining signal integrity by attenuating high-frequency noise. The four-element configuration allows for efficient management of multiple sensitive lines within a single footprint, reducing overall component count.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative ferrite bead arrays from other manufacturers based on impedance, current rating, and package dimensions.