FBU201209T-121Y-S

Chip Ferrite Bead Overview

The FBU201209T-121Y-S is a surface-mount ferrite chip bead manufactured by Cal-Chip Electronics, Inc. It features a single-function design in an 0805 (2012 Metric) package with dimensions of 2.0 mm length and 1.2 mm width. The component provides an impedance of 120 Ohms at 100 MHz and supports a maximum current rating of 4A. Its maximum DC resistance is specified at 20 mOhm. The device is RoHS compliant and lead-free, designed for high-current EMI/RFI suppression applications.

Chip Ferrite Bead Feature Summary

• Provides effective EMI and RFI attenuation through multilayer ferrite technology without requiring additional wiring
• Engineered for high current handling capabilities suitable for power line filtering
• Optimized for surface mounting processes including flow, reflow, and wave soldering

Chip Ferrite Bead Applications

• Power line filtering in electronic equipment
• EMI suppression in high-current circuits
• RFI attenuation for surface-mounted devices

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'S' against the manufacturer's official documentation to confirm exact electrical tolerances and packaging details. Ensure the selected variant matches the required 4A current rating and 120 Ohm impedance specifications for your circuit design. Confirm RoHS compliance status if restricted substances are a constraint for your assembly process.

Chip Ferrite Bead Selection Notes

Select this component when high current capacity is required alongside significant impedance at 100 MHz. The 0805 footprint offers a balance between size and power handling compared to smaller packages. Consider the low DC resistance to minimize voltage drop in power supply lines while maintaining effective noise suppression characteristics.

Chip Ferrite Bead Part Context

This part belongs to the FBU series of ultra-high performance ferrite beads from Cal-Chip Electronics. The series utilizes multilayer technology to provide superior electrode strength and solder heat resistance. These components are specifically designed to eliminate EMI/RFI issues directly on the PCB, simplifying the design process for modern surface mount applications.

Chip Ferrite Bead Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.