7427927170

Overview

The Würth Elektronik 7427927170 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 75 Ohms at 100 MHz for single-signal-line applications. The component supports a maximum DC current of 400 mA and features a maximum DC resistance of 310 mOhms. It operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides effective electromagnetic interference suppression for high-speed signal lines
• Designed for space-constrained surface-mount PCB layouts
• Engineered for stable performance across wide industrial temperature ranges

Applications

• High-speed digital signal line filtering
• Portable electronic device power integrity management
• Automotive electronics EMI mitigation

Procurement Notes

Verify the specific suffix codes against official datasheets to confirm exact impedance tolerances and packaging configurations. Ensure compatibility with standard reflow soldering profiles for 0402 components. Cross-reference RoHS compliance documentation for regulatory adherence in target markets.

Selection Notes

Select this component when board real estate is limited and single-line noise attenuation is required. Evaluate the 400 mA current rating against peak load requirements to prevent saturation. Consider the 75 Ohm impedance profile relative to the target noise frequency spectrum for optimal filtering efficiency.

Part Context

This part belongs to the WE-CBF family of SMD EMI suppression ferrite beads. The series offers various impedance values and current ratings in standardized footprints. The 0402 size represents a balance between electrical performance and miniaturization for modern consumer and automotive electronics.

Replacement Considerations

Consult manufacturer substitution guides for equivalent impedance and current handling in identical packages. Verify pinout compatibility and thermal characteristics before integrating alternative suppliers.