7427257

Overview

The Würth Elektronik 7427257 is a solid flat ribbon cable core from the WE-SFA series, designed for EMI suppression. It features a nominal impedance of 57 Ohms at a test frequency of 100 MHz and accommodates 20 poles. The component measures 28.5 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 weighs 5.5 g.

Feature Summary

• Engineered specifically for suppressing electromagnetic interference on flat ribbon cables
• Provides high-density noise attenuation for multi-conductor signal lines
• Constructed as a solid ferrite unit for secure cable retention

Applications

• Suppression of flat ribbon cables in computer data interfaces
• Noise filtering for internal circuit board connections
• EMI reduction in power cable assemblies

Procurement Notes

Verify that the specific part number matches the required impedance and pole count for your application. Confirm compliance with RoHS standards if environmental regulations apply. Ensure the physical dimensions are compatible with the available space in the assembly. Check the operating temperature range against the intended environment.

Selection Notes

Select this component when managing flat ribbon cables requiring EMI suppression. The 57 Ohm impedance rating is suitable for standard digital signal frequencies. Consider the 20-pole capacity to ensure all conductors are enclosed. Verify that the external dimensions fit within the designated enclosure constraints.

Part Context

This component belongs to the WE-SFA series of flat ferrite cores manufactured by Würth Elektronik. It is categorized under ferrites and serves as a passive solution for high-frequency noise mitigation. The product is distinct from split-core designs, offering a solid structure for permanent installation on ribbon cables.

Replacement Considerations

No public confirmed substitute part numbers are documented.