FBU201209T-400Y-S

Chip Ferrite Bead Overview

The FBU201209T-400Y-S is a power line ferrite bead manufactured by Cal-Chip Electronics, Inc. It features a 0805 (2012 Metric) surface mount package with dimensions of 2.0 mm length and 1.2 mm width. The component provides an impedance of 40 Ohms at 100 MHz and has a maximum DC resistance of 30 mΩ. It supports a current rating of 4 A and operates within a temperature range of -55°C to +125°C.

Chip Ferrite Bead Feature Summary

• Provides electromagnetic interference suppression for power lines
• Designed for surface mounting applications
• Offers high impedance characteristics for noise attenuation

Chip Ferrite Bead Applications

• Power supply circuits
• Battery chargers
• Portable electronic devices
• Energy-efficient systems

Chip Ferrite Bead Procurement Notes

Verify the specific impedance value of 40 Ohms at 100 MHz against design requirements. Confirm the 4 A current rating and 30 mΩ DC resistance are suitable for the target circuit. Ensure the 0805 package size fits the PCB layout. Check RoHS compliance status if required by project specifications.

Chip Ferrite Bead Selection Notes

Select this component when EMI suppression is needed on power lines in compact designs. The 0805 footprint allows for space-saving construction. Consider the 4 A current handling capability for power delivery paths. The 40 Ohm impedance at 100 MHz targets specific noise frequencies.

Chip Ferrite Bead Part Context

This ferrite bead belongs to the Cal-Chip Electronics Ferrite Beads and Chips series. These components utilize multilayer technology to provide EMI/RFI attenuation. They are designed for flow, reflow, and wave soldering processes commonly used in surface mount assembly.

Chip Ferrite Bead Replacement Considerations

The FBU201209T-800Y-S is a confirmed substitute part number from the same manufacturer. It shares the 0805 package but offers 80 Ohms impedance at 100 MHz.