74271142

Overview

The Würth Elektronik 74271142 is a snap-on ferrite core from the STAR-TEC series, designed for cable installation. It features a square shape with an internal diameter of 5 mm and external dimensions of 32.5 mm x 18.8 mm x 13.2 mm. The component utilizes 4W620 ferrite material and provides an impedance of 98 Ohms at 25 MHz and 119 Ohms at 100 MHz. It operates within a temperature range of -25°C to +105°C and complies with RoHS standards.

Feature Summary

• Snap-on design allows for quick installation on existing cables without disconnection
• Utilizes 4W620 ferrite material for effective electromagnetic interference suppression
• Square profile accommodates standard cable bundles in confined spaces

Applications

• General electronic equipment noise suppression
• Safety-related application signal integrity protection
• Cable harness filtering for data lines

Procurement Notes

Verify the specific part number suffix when ordering, as variants like 74271142S include a hinged design requiring a separate safety key (part number 74271). Confirm that the required aperture size matches the target cable diameter of 5 mm. Ensure compliance with project-specific environmental regulations such as RoHS and REACH restrictions before finalizing procurement.

Selection Notes

Select this component when a non-invasive EMI solution is required for cables up to 5 mm in diameter. The 4W620 material offers balanced performance for general-purpose applications. Consider the 74271142S variant if a secure locking mechanism is necessary to prevent accidental opening during vibration or handling.

Part Context

This component belongs to the Würth Elektronik STAR-TEC series of split-core ferrites. These cores are engineered for rapid deployment on pre-assembled wiring harnesses. The series includes various aperture sizes and materials to address different frequency ranges and cable diameters across industrial and consumer electronics sectors.

Replacement Considerations

The 74271142S is a related variant featuring a hinged design with a locking mechanism. It requires the separate purchase of the 74271 safety key for secure closure. Verify if the standard snap-fit of the 74271142 meets mechanical retention requirements or if the keyed version is preferred.