74279278

Overview

The Würth Elektronik 74279278 is a surface-mount ferrite bead from the WE-CBF series, designed for high-frequency noise suppression on single signal lines. It features a compact 0402 (1005 Metric) package and utilizes specialized SMD chip bead technology to offer excellent anti-EMI properties with low DC resistance. The component provides an impedance of 240 Ohms at 100 MHz and supports a maximum current rating of 200 mA, with a DC resistance of 700 mOhm.

Feature Summary

• Specialized surface-mount design allows direct placement on printed circuit boards
• Provides effective high-frequency noise suppression for single signal lines
• Delivers excellent anti-EMI performance characteristics
• Maintains low DC resistance to minimize signal loss

Applications

• High-frequency noise suppression on single signal lines
• Surface-mount integration on printed circuit boards

Procurement Notes

Verify the specific part number 74279278 against official Wurth Elektronik documentation to confirm the 240 Ohm impedance at 100 MHz and 200 mA current rating. Ensure the 0402 package dimensions match your PCB footprint requirements. Confirm RoHS3 compliance status through the manufacturer's datasheet before finalizing procurement specifications.

Selection Notes

Select this component when space-constrained designs require surface-mount EMI filtering for single-line applications. The 0402 package suits dense PCB layouts where traditional through-hole beads are unsuitable. Consider the 200 mA current limit and 700 mOhm resistance for power integrity analysis in sensitive signal paths requiring high-frequency attenuation.

Part Context

This component belongs to the Würth Elektronik WE-CBF series of surface-mount ferrite beads. These parts are engineered specifically for integrated circuit board mounting, distinguishing them from clamp-on or through-hole alternatives. The series focuses on providing reliable electromagnetic interference suppression in compact electronic assemblies without compromising board real estate.

Replacement Considerations

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