74279264

Overview

The Wurth Elektronik 74279264 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, housed in an 0603 (1608 metric) package. It exhibits an impedance of 300 Ohms at a test frequency of 210 MHz and supports a maximum DC current rating of 200 mA. The component complies with AEC-Q200 automotive qualification standards and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Provides electromagnetic interference suppression for high-frequency noise
• Automotive-grade reliability certified under AEC-Q200 standards
• Designed for compact surface-mount assembly on printed circuit boards

Applications

• Automotive electronic circuits requiring EMI filtering
• Data line protection in consumer electronics
• General-purpose signal integrity enhancement

Procurement Notes

Verify the specific impedance frequency rating against design requirements, as this variant specifies 300 Ohms at 210 MHz rather than the standard 100 MHz benchmark. Confirm that the 200 mA current rating aligns with the target circuit's operational limits. Ensure the 0603 footprint matches the PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when space-constrained designs require AEC-Q200 qualified ferrites. The 0603 package offers a balance between current handling and board area efficiency. Consider the 210 MHz impedance characteristic for applications targeting higher frequency noise attenuation compared to standard 100 MHz rated beads.

Part Context

This part belongs to the WE-CBF series of SMD ferrite beads manufactured by Wurth Elektronik. The series focuses on providing reliable EMI suppression solutions for modern electronic assemblies. The 74279264 model specifically addresses the need for small-footprint components that meet rigorous automotive quality standards while maintaining effective noise filtration capabilities.

FAQ

What is the test frequency for the 300 Ohm impedance specification?

The impedance of 300 Ohms is measured at a test frequency of 210 MHz.

Is this component suitable for automotive applications?

Yes, the 74279264 is qualified according to the AEC-Q200 standard for passive components used in automotive environments.