7427928551

Overview

The Würth Elektronik part number 7427928551 is a surface-mount ferrite bead from the WE-CBF series, designed for EMI suppression in high-current applications. It features a 2220 (5550 metric) package size with an impedance of 550 Ohms at 100 MHz and a maximum DC current rating of 4 Amperes. The component exhibits a maximum DC resistance of 35 milliohms and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides effective electromagnetic interference suppression for signal lines
• Supports high continuous current loads up to 4 Amperes
• Features low DC resistance to minimize power loss
• Compliant with RoHS standards

Applications

• High-current signal line filtering
• Power supply output filtering
• Data bus noise suppression

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official manufacturer datasheet before integration. Confirm that the 2220 package dimensions align with the target PCB footprint. Ensure the selected supplier provides genuine components with traceable documentation to guarantee performance reliability in high-current environments.

Selection Notes

Select this component when high current handling capability is required alongside significant impedance at 100 MHz. The low DC resistance makes it suitable for power rails where voltage drop must be minimized. Evaluate thermal management requirements given the 4A rating and ensure the operating temperature range meets system specifications.

Part Context

This ferrite bead belongs to the WE-CBF series, which focuses on compact surface-mount solutions for EMI suppression. The 2220 package offers a balance between physical size and current handling capacity compared to smaller footprints. It is engineered for reliable performance in demanding electronic environments requiring robust noise filtering.

Replacement Considerations

Check for direct substitutes within the WE-CBF series with similar impedance and current ratings. Verify package compatibility if considering alternative manufacturers. Ensure any replacement maintains the same DC resistance and temperature characteristics to preserve circuit performance.