EXC-ML20A390U

Chip Ferrite Bead Overview

The Panasonic EXC-ML20A390U is a surface-mount ferrite bead core designed for electromagnetic interference suppression. It features a maximum rated current of 4A and an impedance of 39 Ohms with a tolerance of ±25%. The component operates effectively at frequencies up to 100MHz. Its physical dimensions are 2mm in length, 1.25mm in width, and 0.9mm in height, corresponding to the 0805 package size. The DC resistance is specified as a maximum of 0.008 Ohms.

Chip Ferrite Bead Feature Summary

• Effective noise suppression capability for both power lines and high-speed signal lines
• Facilitates easy pattern layout on printed circuit boards due to compact surface-mount design

Chip Ferrite Bead Applications

• Electromagnetic interference suppression in electronic circuits
• Noise filtering for high-speed signal lines
• Power line noise attenuation

Chip Ferrite Bead Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check lifecycle status, as this part may be obsolete. Ensure packaging specifications match requirements for automated assembly processes. Cross-reference datasheet revisions to confirm electrical parameters remain consistent with design specifications.

Chip Ferrite Bead Selection Notes

Select this component when designing circuits requiring EMI suppression with a 4A current capacity. The 39 Ohm impedance value suits applications targeting specific frequency ranges around 100MHz. Consider the 0805 footprint constraints during PCB layout. Verify that the low DC resistance meets voltage drop requirements in the target application.

Chip Ferrite Bead Part Context

This component belongs to the EXCML series of chip bead cores manufactured by Panasonic Electronic Components. These components are engineered for surface-mount technology integration. The series emphasizes compact form factors suitable for modern electronics manufacturing standards while providing reliable noise filtration performance.

Chip Ferrite Bead Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Panasonic catalogs for equivalent series members or updated replacements if this obsolete part is required.