7427255

Overview

The Würth Elektronik 7427255 is a solid flat ferrite cable core from the WE-SFA series, designed for electromagnetic interference suppression. It features a nominal impedance of 100 Ohms at a test frequency of 100 MHz and accommodates up to 26 poles in a flat ribbon configuration. The component measures 15 mm in length, 45 mm in width, and 13 mm in height. It operates within a temperature range of -25°C to +125°C and utilizes 4W620 material composition.

Feature Summary

• Solid split design allows installation over existing flat ribbon cables without disconnection
• Optimized for high-density data lines with support for up to 26 poles
• Provides effective common-mode noise attenuation in EMI applications

Applications

• Suppression of electromagnetic interference on flat ribbon cables
• Noise filtering in computer data transmission lines
• EMI mitigation in internal electronic device wiring

Procurement Notes

Verify the specific impedance value of 100 Ohms at 100 MHz against your system requirements. Confirm that the physical dimensions (15x45x13 mm) fit the available space. Ensure the 26-pole capacity matches the target cable harness. Check compliance documentation for RoHS and REACH standards if required by your manufacturing process.

Selection Notes

Select this component when dealing with multi-conductor flat cables requiring non-invasive noise reduction. The 100 Ohm impedance rating suits typical digital signal lines. Consider the operating temperature range of -25°C to +125°C for environmental suitability. The solid construction offers durability compared to openable variants for permanent installations.

Part Context

This part belongs to the WE-SFA series of flat ferrite cores from Würth Elektronik. It is distinct from the STAR-RING and STAR-TEC snap-on magnetic rings also offered by the manufacturer. The WE-SFA series specifically targets flat cable geometries rather than round wires or single conductors.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-referencing requires matching impedance, pole count, and physical dimensions.