74279274

Overview

The Würth Elektronik 74279274 is a surface-mount technology (SMT) EMI suppression ferrite bead from the WE-CBF series. It features a compact 0402 [1005 Metric] package designed for direct PCB mounting. The component provides an impedance of 30 Ω at 100 MHz and utilizes a single-line configuration. It is engineered to offer excellent anti-EMI properties alongside low DC resistance, making it suitable for general electronic equipment applications.

Feature Summary

• Surface-mount design allows direct integration onto printed circuit boards
• Provides effective electromagnetic interference suppression
• Maintains low DC resistance for signal integrity

Applications

• General electronic equipment
• Signal line filtering
• Power supply noise suppression

Procurement Notes

Verify the specific datasheet version when ordering, as manufacturer specifications may be updated. Confirm that the 0402 package dimensions align with your PCB footprint requirements. Ensure compatibility with standard SMT assembly processes. Check for any specific handling instructions regarding moisture sensitivity levels during storage and reflow soldering.

Selection Notes

Select this component when space constraints require a 0402 footprint. Choose based on the required 30 Ω impedance at 100 MHz for the target frequency range. Consider the low DC resistance characteristic if current carrying capacity or voltage drop is a critical design parameter. Verify thermal performance limits against the operating environment.

Part Context

This part belongs to the WE-CBF series of SMT EMI suppression ferrite beads. These components are distinct from through-hole or clamp-on ferrites by their planar form factor. The series is optimized for high-volume surface mount assembly lines, providing consistent electrical characteristics across production batches.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.