74272142

Overview

The Würth Elektronik part number 74272142 is a STAR-TEC LFS Snap Ferrite Clamp On Core designed for electromagnetic interference suppression. It features a square ferrite core with an internal diameter of 5 mm, accommodating cables up to that thickness. The component exhibits an impedance of 120 ohms at 100 MHz and utilizes the 4W620 ferrite material composition. External dimensions are approximately 32.5 mm in length, 18.8 mm in width, and 13.2 mm in height. It 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 on existing cables without disconnection.
• Utilizes 4W620 ferrite material for effective high-frequency noise attenuation.
• Square profile provides stable mechanical grip on round conductors.

Applications

• Electromagnetic interference suppression on power cables
• Noise reduction on computer data lines
• General purpose EMI filtering for electronic assemblies

Procurement Notes

Verify the specific suffix designation against the manufacturer datasheet to confirm exact impedance characteristics and material grade. Ensure the selected variant matches the required cable diameter and operating frequency range for the intended application. Cross-reference official Wurth Elektronik documentation for any updates regarding compliance certifications or manufacturing changes.

Selection Notes

Select this component when a snap-on ferrite core is required for cables with a maximum diameter of 5 mm. The 120 ohm impedance at 100 MHz makes it suitable for suppressing noise in digital signal and power lines. Consider the physical dimensions and thermal rating to ensure compatibility with the assembly space and environmental conditions.

Part Context

This component belongs to the STAR-TEC series of clamp-on ferrites from Würth Elektronik. These cores are engineered for quick deployment on wires and cables to mitigate common mode noise. The series offers various aperture sizes and impedance profiles to address different frequency ranges and conductor geometries in electronic systems.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided source material. Users should consult the manufacturer's cross-reference tools or datasheets for equivalent products with matching impedance and dimensional specifications.

FAQ

What is the impedance of the 74272142 at 100 MHz?

The impedance is 120 ohms at 100 MHz.

What is the maximum cable diameter this core can accommodate?

The internal diameter is 5 mm, allowing it to fit cables with a maximum diameter of 5 mm.