7427144S

Overview

The Würth Elektronik 7427144S is a snap-on ferrite core from the SNAP-RING series, designed for EMI suppression on cables. It features a grey plastic housing and utilizes 4W620 material. The component has an inner diameter of 11.0 mm and measures 35.0 mm in length, 20.0 mm in width, and 18.0 mm in height. It provides an impedance of 129 Ω at 100 MHz and 64 Ω at 25 MHz. The unit operates within a temperature range of -25°C to +105°C and complies with RoHS standards.

Feature Summary

• Snap-on design allows for rapid installation onto existing cables without disconnection
• Grey plastic casing protects the internal ferrite material
• Utilizes 4W620 ferrite composition for effective high-frequency noise attenuation

Applications

• Cable EMI suppression
• General electronic equipment noise filtering
• Safety-related application signal line protection

Procurement Notes

Verify the specific part number suffix 'S' against official Wurth Elektronik documentation to confirm it denotes the standard snap-ring variant with the specified 11.0 mm aperture and 129 Ω impedance at 100 MHz. Ensure the order matches the required inner diameter for the target cable bundle size. Cross-reference the material grade 4W620 if specific frequency response characteristics are critical for the design.

Selection Notes

Select this component when a quick-install solution is required for cables with diameters up to 11.0 mm. The 129 Ω impedance at 100 MHz makes it suitable for suppressing common-mode noise in general-purpose digital and power lines. Consider the physical dimensions (35x20x18 mm) to ensure adequate clearance within the enclosure compared to solid ring cores.

Part Context

This component belongs to the SNAP-RING family of snap-on ferrites manufactured by Würth Elektronik. These cores are engineered for field installation on wires and cables to mitigate electromagnetic interference. The 7427144S specifically represents the grey-cased variant with an 11.0 mm opening, distinct from other series like STAR-TEC or STAR-RING which may have different mounting mechanisms or dimensional profiles.

Replacement Considerations

Public confirmed substitute part numbers: 7427144.