74279261

Overview

The Würth Elektronik 74279261 is a surface-mount EMI suppression ferrite bead from the WE-CBF series, housed in an 0603 (1608 metric) package. It provides an impedance of 80 Ohms at 100 MHz with a maximum DC current rating of 200 mA and a maximum DC resistance of 300 mOhms. Designed for signal line filtering, it operates within a temperature range of -55°C to +125°C and meets AEC-Q200 automotive qualification standards.

Feature Summary

• AEC-Q200 qualified for automotive reliability requirements
• Compact 0603 surface-mount footprint for space-constrained designs
• High impedance performance for effective EMI noise suppression

Applications

• Automotive electronic systems
• Signal line EMI filtering
• Portable digital devices

Procurement Notes

Verify the component status as active before procurement planning. Confirm that the 0603 package dimensions align with the target PCB land pattern. Ensure the 200 mA current rating satisfies the circuit's operational requirements without saturation. Check for RoHS compliance documentation if required by specific regional regulations.

Selection Notes

Select this component when high-frequency noise suppression is critical in limited board space. The 80 Ohm impedance at 100 MHz targets common EMI frequencies. The low DC resistance minimizes voltage drop in sensitive signal lines. Consider the AEC-Q200 certification if the application involves automotive environments requiring enhanced durability.

Part Context

This ferrite bead belongs to the WE-CBF series, which focuses on compact EMI suppression solutions. The series offers various impedance values and current ratings across different package sizes. The 74279261 specifically addresses needs for moderate current handling in small form-factor applications.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided data.