7427141

Overview

The Würth Elektronik 7427141 is a snap-on ferrite core from the SNAP-RING series, designed for electromagnetic interference suppression. It features a grey plastic housing and an internal aperture of 13.0 mm to accommodate cables. The component utilizes manganese-zinc ferrite material (4W620) to provide high impedance in the radio frequency range. Key electrical specifications include an impedance of 97 Ω at 25 MHz and 180 Ω at 100 MHz. The external dimensions are approximately 39 mm in width, 35 mm in height, and 49 mm in depth. It complies with RoHS and REACH standards.

Feature Summary

• Snap-on design allows for rapid installation onto existing cables without disconnection.
• High impedance performance effectively suppresses common mode noise across specified frequencies.
• Durable plastic housing protects the ferrite core and ensures secure cable retention.

Applications

• Suppression of electromagnetic interference on power cables
• Noise reduction for computer data lines
• General purpose EMI filtering on circuit board wiring

Procurement Notes

Verify the specific part number suffix against official Wurth Elektronik documentation to confirm exact aperture size and impedance ratings, as variations exist within the series. Ensure compliance requirements such as RoHS and REACH match project specifications. Cross-reference datasheets for precise mechanical tolerances before integration into assembly processes.

Selection Notes

Select this component when a quick-install solution is required for cables up to 13.0 mm in diameter. Consider the 97 Ω impedance at 25 MHz for lower frequency noise applications. Evaluate the physical dimensions to ensure adequate clearance within the enclosure. Compare against other series members if different aperture sizes or impedance profiles are needed.

Part Context

This component belongs to the Wurth Elektronik SNAP-RING family of ferrite cores. These parts are engineered for easy retrofitting onto wires and cables. The series offers various aperture sizes and impedance characteristics to suit diverse EMI suppression needs while maintaining standard industrial certifications.

Replacement Considerations

Check for direct substitutes within the Wurth Elektronik SNAP-RING lineup that share identical 13.0 mm aperture and 97 Ω @ 25 MHz specifications. Verify mechanical fit and impedance curves before substituting with generic snap-on ferrites to ensure equivalent noise suppression performance.

FAQ

What is the maximum cable diameter this ferrite core can accommodate?

The 7427141 has an internal aperture of 13.0 mm, allowing it to fit cables with a diameter up to this limit.

Does this component require tools for installation?

No, the snap-on design allows for manual installation by pressing the two halves together around the cable.