74272251

Overview

The Würth Elektronik part number 74272251 is a snap-on ferrite core from the STAR-TEC series, designed for electromagnetic interference suppression. It features a manganese-zinc material composition and includes safety key technology to ensure secure installation. The component has an inner diameter of 25 mm and external dimensions of 61.3 mm in length, 55 mm in outer diameter, and 59.5 mm in height. It operates within a temperature range of -55 °C to +105 °C and complies with RoHS standards.

Feature Summary

• Incorporates safety key technology for secure locking on cables
• Utilizes manganese-zinc ferrite material for effective noise suppression
• Designed as a quick-install split-core solution

Applications

• External cable EMI suppression
• Internal wiring noise reduction
• Small rivet applications

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as 74272251S exist within the same product family. Confirm that the required inner diameter matches the 25 mm specification. Ensure compatibility with the target cable bundle size before procurement. Check for updated datasheets regarding any recent manufacturing changes or compliance updates.

Selection Notes

Select this component when a robust, keyed snap-on ferrite is required for larger diameter cables. The safety key feature distinguishes it from standard split cores, providing enhanced mechanical retention. Consider the operating temperature range and physical dimensions to ensure fitment within the enclosure. Verify that the impedance characteristics at the target frequency meet the system's EMI requirements.

Part Context

This component belongs to the Würth Elektronik STAR-TEC series of snap-on ferrites. These cores are engineered for rapid installation on existing cable assemblies without disconnection. The series offers various sizes and materials to address different frequency ranges and cable diameters, supporting diverse industrial and commercial electronics applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official Wurth Elektronik resources for cross-reference data.