74279221111

Overview

The Würth Elektronik part number 74279221111 is a surface-mount EMI suppression ferrite bead belonging to the WE-CBF series. It utilizes a 1206 (3216 metric) package and provides an impedance of 110 Ohms at a test frequency of 100 MHz. The component supports a maximum DC current rating of 5.4 Amperes with a low maximum DC resistance of 15 milliohms, ensuring minimal signal attenuation in high-current applications.

Feature Summary

• Provides effective electromagnetic interference suppression through high impedance characteristics at 100 MHz.
• Engineered for high-current environments with a rated capacity of 5.4 Amperes.
• Features a compact 1206 surface-mount footprint suitable for space-constrained PCB layouts.

Applications

• High-speed digital data line filtering
• Power supply output noise suppression
• General-purpose EMI/RFI mitigation in consumer electronics

Procurement Notes

Verify the complete ten-digit part number against official Wurth Elektronik documentation to ensure accuracy. Confirm that the 1206 package dimensions and 5.4A current rating align with specific design requirements. Cross-reference the 110 Ohm impedance specification at 100 MHz with circuit simulation models before finalizing procurement decisions.

Selection Notes

Select this component when designing circuits requiring significant current handling alongside moderate high-frequency noise attenuation. The low DC resistance minimizes power loss compared to higher-resistance alternatives. Ensure the 1206 package size fits within the available board real estate and thermal management constraints of the target application.

Part Context

This component is part of the WE-CBF series, which focuses on small-size SMD ferrite beads designed for efficient EMI suppression. The series offers various impedance and current combinations to accommodate diverse electronic system needs while maintaining consistent quality standards across the product line.

Replacement Considerations

Consult official Wurth Elektronik substitution guides for verified equivalents. Ensure any alternative maintains the 1206 package, 5.4A current rating, and comparable 100 MHz impedance to preserve circuit performance integrity.

FAQ

What is the maximum DC current rating for this ferrite bead?

The component is rated for a maximum DC current of 5.4 Amperes.

Does this part meet automotive reliability standards?

Public datasheets for this specific part number do not explicitly confirm AEC-Q200 qualification; verify specific automotive compliance in the official documentation.