74278011

Overview

The Würth Elektronik part number 74278011 is a WE-FLAT ferrite core designed for flexible printed circuit boards. It utilizes 4W620 material to provide electromagnetic interference suppression. The component features an internal width of 11.5 mm and exhibits an impedance of 64 ohms at 100 MHz. It complies with RoHS standards.

Feature Summary

• Engineered specifically for flexible printed circuit board applications
• Utilizes 4W620 ferrite material for effective EMI suppression
• Provides 64 ohms impedance at 100 MHz

Applications

• Flexible printed circuit boards
• Flat ribbon cables
• General EMI suppression in electronics

Procurement Notes

Verify the specific application requirements against the 11.5 mm internal width specification before procurement. Confirm that the 64 ohm impedance at 100 MHz aligns with the target noise frequencies. Ensure compliance with RoHS directives is required for the end product. Cross-reference the manufacturer datasheet for handling instructions.

Selection Notes

Select this component when suppressing noise on flat or flexible conductors rather than round wires. The 11.5 mm aperture accommodates specific cable geometries. Consider the 4W620 material characteristics for the intended frequency range. Evaluate mechanical constraints regarding the core dimensions and flexibility requirements of the assembly.

Part Context

This component belongs to the WE-FLAT series from Würth Elektronik, which specializes in ferrite solutions for flat cabling and flexible circuits. It differs from snap-on cores by its geometry optimized for ribbon-style interconnects. The series supports various widths to match different cable profiles within electronic assemblies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.