7427927281

Overview

The Würth Elektronik 7427927281 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, housed in a compact 0402 (1005 metric) package. It provides an impedance of 800 Ohms at 100 MHz with a maximum DC resistance of 800 mOhms and a rated current of 50 mA. The component operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Feature Summary

• Designed for high-frequency electromagnetic interference suppression in single-signal line applications
• Automotive-grade reliability certified under AEC-Q200 standards
• Compact 0402 footprint enables dense circuit board layouts

Applications

• Single signal line EMI filtering
• Automotive electronic circuits
• High-density surface mount assemblies

Procurement Notes

Verify the specific suffix against official Wurth documentation to confirm exact impedance tolerance and material composition. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity and traceability of the AEC-Q200 certification data.

Selection Notes

Select this component for applications requiring significant attenuation at 100 MHz with limited current capacity. The low DC resistance minimizes voltage drop in sensitive signal paths, while the small package size supports space-constrained designs without compromising filtering performance.

Part Context

This part belongs to the WE-CBF series of multilayer SMD ferrites. These components integrate magnetic material within a ceramic structure to provide effective noise suppression in minimal space, differing from traditional wound ferrite beads by offering consistent performance in automated surface-mount processes.

Replacement Considerations

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