74278041

Overview

The Würth Elektronik 74278041 is a flat ferrite core from the WE-FLAT series, engineered for flexible printed circuit boards. It provides electromagnetic interference suppression with an impedance of 20 Ω at 100 MHz. The component measures 35 mm in length, 16 mm in width, and 0.5 mm in height. It operates within a temperature range of -40°C to +125°C and complies with RoHS standards.

Feature Summary

• Designed specifically for integration with flexible printed circuit boards
• Provides targeted electromagnetic interference attenuation
• Utilizes high-performance ferrite material for signal integrity

Applications

• Flexible printed circuit board assemblies
• Portable electronic devices requiring compact EMI solutions
• High-density interconnect applications

Procurement Notes

Verify the specific part number against official Wurth Elektronik documentation to ensure compatibility with flexible PCB designs. Confirm that the 20 Ω impedance specification meets the target frequency requirements for the intended application. Check for updated compliance certifications such as RoHS status prior to procurement.

Selection Notes

Select this component when space constraints on flexible substrates require a low-profile EMI solution. The flat geometry allows for direct attachment without adding significant bulk. Ensure the operating temperature range of -40°C to +125°C aligns with the environmental conditions of the final assembly.

Part Context

This component belongs to the WE-FLAT series, which specializes in ferrite cores for flexible electronics. Unlike traditional snap-on or through-hole ferrites, this design addresses the unique form factor requirements of modern flexible circuits, offering a streamlined approach to noise reduction in compact devices.

Replacement Considerations

Consult official Wurth Elektronik substitution guides for verified alternatives. Generic ferrite cores may not match the specific impedance profile or physical dimensions required for flexible PCB integration.