7427153

Overview

The Würth Elektronik part number 7427153 is a STAR-RING snap ferrite core designed for electromagnetic interference suppression. It features a split-core construction with an inner diameter of 27 mm and includes a safety key mechanism for secure closure. The component utilizes 4W620 material to provide impedance values of 83 ohms at 25 MHz and 260 ohms at 100 MHz. Its physical dimensions are 55 mm in width, 44 mm in height, and 20 mm in depth. The unit complies with RoHS and REACH standards.

Feature Summary

• Snap-on design with integrated safety key technology for rapid installation and secure locking
• Split-core configuration allowing placement on existing cables without disconnection
• Utilizes proprietary 4W620 ferrite material for effective high-frequency noise attenuation

Applications

• Suppression of electromagnetic interference on internal wiring harnesses
• Noise reduction on external power and signal cables
• EMI mitigation for small hollow rivets and general cable bundles

Procurement Notes

Verify the specific impedance requirements against application frequency ranges before ordering. Confirm that the 27 mm aperture accommodates the target cable bundle diameter. Ensure compliance with project-specific environmental regulations such as RoHS and REACH. Cross-reference the manufacturer datasheet for mechanical tolerances and mounting constraints.

Selection Notes

Select this component when a large aperture snap ferrite is required for post-assembly cable treatment. The 27 mm opening suits thick cable bundles or multiple conductors. Choose based on the need for the safety key feature to prevent accidental opening during vibration. Consider the 4W620 material properties for the specific frequency spectrum of the noise to be suppressed.

Part Context

This component belongs to the STAR-RING series from Würth Elektronik, which specializes in snap-on ferrite cores. The series offers various aperture sizes and materials to address different EMI challenges. The 7427153 variant specifically targets applications requiring larger clearance for substantial cabling while maintaining secure attachment through its unique locking mechanism.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.