FCB-0805-202A

Chip Ferrite Bead Overview

The Signal Transformer FCB-0805-202A is a general-purpose surface-mount ferrite bead designed for power line noise suppression. It features an impedance of 2,000 Ohms at a test frequency of 100 MHz. The component operates within a maximum DC current rating of 100 mA and exhibits a maximum DC resistance of 800 milliohms. It utilizes a standard 0805 (2012 metric) package with physical dimensions of 2 mm in length, 1.25 mm in width, and 0.9 mm in height.

Chip Ferrite Bead Feature Summary

• Provides high attenuation for electromagnetic interference on power lines
• Compact surface-mount design suitable for space-constrained applications
• Capable of handling continuous DC currents up to 100 mA

Chip Ferrite Bead Applications

• Power supply circuits requiring EMI filtering
• Battery charger input stages
• Portable electronic device power rails

Chip Ferrite Bead Procurement Notes

Verify the specific manufacturer designation, as Signal Transformer products are often associated with Bel Fuse or Bel Power Solutions branding. Confirm that the 0805 footprint matches the target PCB layout constraints. Ensure the 100 mA current rating meets the operational requirements of the specific circuit application before finalizing procurement.

Chip Ferrite Bead Selection Notes

Select this component when high impedance at 100 MHz is required for broadband noise suppression. The 800 mOhm DCR minimizes voltage drop in low-current paths. Consider thermal dissipation capabilities relative to the ambient temperature and current load to ensure reliable operation within the specified operating range.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the family of chip ferrite beads used for suppressing high-frequency noise in electronic circuits. Unlike inductors, it functions primarily as a resistive loss element at high frequencies. The 0805 package offers a balance between noise suppression performance and board space efficiency for consumer and industrial electronics.

Chip Ferrite Bead Replacement Considerations

Signal Transformer FCB-0805-101A serves as a functional substitute offering lower impedance characteristics. When replacing, verify that the alternative part's impedance curve and current rating align with the original circuit's noise profile and power requirements.