74279244

Overview

The Würth Elektronik 74279244 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, housed in an 1806 (4516 metric) package. It exhibits an impedance of 850 Ohms at a test frequency of 100 MHz with a tolerance of 25%. The component supports a maximum DC current of 1.5 A and maintains a maximum DC resistance of 100 mOhms. It operates within a temperature range of -55°C to +125°C and holds AEC-Q200 qualification for automotive reliability.

Feature Summary

• Provides effective electromagnetic interference suppression through high-impedance characteristics at target frequencies.
• Designed for surface-mount technology integration into compact circuit layouts.
• Qualified for automotive applications under AEC-Q200 standards.

Applications

• Automotive electronics systems requiring EMI filtering
• High-current signal line noise suppression
• General-purpose EMI suppression in SMD circuits

Procurement Notes

Verify the specific manufacturer part number against official Wurth Elektronik documentation to ensure authenticity. Confirm that the AEC-Q200 qualification status aligns with your project's automotive reliability requirements. Check datasheet specifications for impedance tolerance and current ratings prior to final procurement decisions.

Selection Notes

Select this component when designing circuits that require robust EMI filtering with high current handling capabilities. The 1806 package size offers a balance between physical footprint and performance. Ensure the operating environment stays within the specified -55°C to +125°C range to maintain optimal electrical characteristics and longevity.

Part Context

This ferrite bead belongs to the WE-CBF series, which focuses on surface-mount EMI suppression solutions. The series provides various impedance and current ratings to suit different application needs. Würth Elektronik designs these components to meet stringent automotive and industrial standards, ensuring reliable noise reduction in sensitive electronic environments.

Replacement Considerations

Consult official Wurth Elektronik substitution guides or datasheets for verified alternative part numbers. Do not assume cross-compatibility based solely on package dimensions or general impedance values without verifying specific electrical parameters and qualification statuses.