FB20020-4B

Chip Ferrite Bead Overview

The Bourns FB20020-4B is a wide-band ferrite bead designed for high-current EMI suppression. It features an axial package with dimensions of 0.236 inches in diameter and 0.394 inches in length (5.99mm x 10.01mm). The component has a maximum current rating of 5A and provides an impedance of 410 Ohms at the specified frequency. It is classified as a through-hole mounting device suitable for robust circuit protection.

Chip Ferrite Bead Feature Summary

• Wide-band choke design for effective electromagnetic interference suppression across broad frequency ranges
• High current handling capability rated at 5 amperes for power line applications
• Axial leaded construction facilitating easy through-hole integration into printed circuit boards

Chip Ferrite Bead Applications

• Electromagnetic interference filtering in industrial equipment
• Noise suppression in consumer electronic power supplies
• Common mode and differential mode noise reduction in telecommunication systems

Chip Ferrite Bead Procurement Notes

Verify RoHS compliance status carefully, as sources indicate conflicting information regarding the specific suffix or revision. Confirm the exact impedance value and current rating against the manufacturer's official datasheet prior to ordering, as availability may be limited due to discontinuation notices from certain distributors.

Chip Ferrite Bead Selection Notes

Select this component when high current capacity and wide-band noise attenuation are required in an axial form factor. Ensure the operating environment supports through-hole mounting and that the physical dimensions fit the designated PCB layout constraints without mechanical interference.

Chip Ferrite Bead Part Context

This part belongs to Bourns' wide-band choke series, which utilizes ferrite materials to provide significant impedance over a broad spectrum. These components are distinct from standard inductors, focusing primarily on signal integrity and noise elimination rather than energy storage in power conversion circuits.

Chip Ferrite Bead Replacement Considerations

Check for direct substitutes within the FB200xx series, such as the FB20019-4B or FB20021-4B, ensuring impedance and current ratings match the original design requirements before substitution.