74272221

Overview

The Würth Elektronik 74272221 is a snap-on ferrite core from the STAR-TEC LFS series, designed for electromagnetic interference suppression. It features a square shape with an internal diameter of 10.5 mm and external dimensions of 41.6 mm length, 33.5 mm width, and 28.4 mm height. The core utilizes 4 W 620 material and includes a safety key mechanism. It operates within a temperature range of -25 °C to +105 °C and weighs 67.2 g.

Feature Summary

• Incorporates safety key technology to prevent accidental opening during operation.
• Utilizes 4 W 620 ferrite material for effective high-frequency noise attenuation.
• Features a snap-on design allowing for rapid installation on single cables without disconnection.

Applications

• Electromagnetic interference suppression on power cables
• Noise filtering for data transmission lines
• Compliance enhancement in electronic equipment enclosures

Procurement Notes

Verify that the specific part number suffix matches the required safety key configuration. Confirm that the cable diameter falls within the 10.5 mm internal aperture limit. Ensure the operating environment remains within the specified -25 °C to +105 °C thermal range to maintain material integrity and performance characteristics.

Selection Notes

Select this component when a secure, non-hinged ferrite solution is required for cables up to 10.5 mm in diameter. The STAR-TEC LFS series is appropriate for applications demanding robust mechanical retention via the safety key. Consider the 4 W 620 material properties for the target frequency spectrum of interference mitigation.

Part Context

This component belongs to the WE-STAR-TEC LFS family of snap-on ferrites manufactured by Würth Elektronik. These cores are engineered for easy retrofitting onto existing wiring harnesses. The series emphasizes mechanical security through integrated locking mechanisms, distinguishing it from standard split-core designs.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing cable assemblies before considering alternative manufacturers or series.