74279266A

Overview

The Würth Elektronik 74279266A is a multilayer surface-mount ferrite bead designed for electromagnetic interference suppression. It exhibits a maximum impedance of 1350 Ω at 100 MHz, with a nominal value of 1000 Ω at the same frequency. The component supports a maximum current rating of 200 mA and features a compact SMD package suitable for space-constrained applications.

Feature Summary

• High impedance performance for effective high-frequency noise attenuation
• Compact multilayer surface-mount construction for automated assembly
• Designed for signal line protection in digital circuits

Applications

• Signal line filtering in portable electronic devices
• Noise suppression on data buses
• EMI mitigation in consumer electronics

Procurement Notes

Verify the specific impedance tolerance and DC resistance values against the official Wurth Elektronik datasheet prior to integration. Confirm that the 200 mA current rating aligns with the operational requirements of the target circuit to prevent saturation or thermal issues during final validation.

Selection Notes

Select this component when high attenuation is required for low-current signal lines. The 1000 Ω impedance at 100 MHz makes it suitable for suppressing broadband noise. Ensure the physical footprint matches the PCB layout constraints and that the 200 mA limit does not exceed the operating current of the protected trace.

Part Context

This part belongs to the Würth Elektronik WE-CBF series of multilayer ferrite beads. These components utilize proprietary ceramic materials to provide stable impedance characteristics across a wide frequency range, serving as critical elements in modern EMC design strategies for compact electronic assemblies.

Replacement Considerations

Consult the manufacturer's cross-reference documentation for verified substitutes. Ensure any alternative maintains equivalent impedance profiles and current handling capabilities to preserve circuit integrity.