74279267

Overview

The Würth Elektronik part number 74279267 is a Surface Mount Device (SMD) EMI suppression ferrite bead belonging to the WE-CBF series. It is housed in an industry-standard 0603 package, with physical dimensions of 1.6 mm length, 0.8 mm width, and 0.85 mm height. The component exhibits an impedance of 60 Ω at a test frequency of 100 MHz and reaches a maximum impedance of 110 Ω at 650 MHz. It supports a rated current of 500 mA and complies with AEC-Q200 automotive standards.

Feature Summary

• Provides effective electromagnetic interference suppression through high impedance characteristics across specified frequency ranges
• Designed for surface mount technology integration into compact printed circuit boards
• Complies with AEC-Q200 qualification standards suitable for automotive electronic applications

Applications

• EMI suppression in automotive electronics
• Signal line filtering in digital devices
• Power supply noise reduction in compact circuits

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official manufacturer datasheet prior to procurement. Confirm that the selected component meets the required current carrying capacity for the target application. Ensure compliance with RoHS directives and check for any recent product change notifications or obsolescence notices from Wurth Elektronik before finalizing orders.

Selection Notes

Select this component when space constraints require a 0603 footprint for EMI filtering. Consider the 60 Ω impedance at 100 MHz for targeted noise attenuation frequencies. Evaluate the 500 mA current rating to ensure it does not saturate under operating conditions. Verify thermal performance within the specified temperature range for reliable operation in the intended environment.

Part Context

This ferrite bead is part of the WE-CBF series, which offers various impedance values and current ratings in standard SMD packages. The series is designed to meet the demands of modern electronics requiring efficient noise suppression in limited board space. It serves as a passive component solution for maintaining signal integrity and reducing radiated emissions in complex circuit designs.

Replacement Considerations

Consult the official Wurth Elektronik cross-reference documentation for verified substitute part numbers. Do not assume functional equivalence based solely on package size or nominal impedance. Verify that any alternative component matches the specific impedance curve, current rating, and AEC-Q200 qualification if required for the application.