74270107

Overview

The Würth Elektronik part number 74270107 is a solid, free-hanging toroidal ferrite core belonging to the WE-TOF series. It is constructed from high-performance magnetic material designed for broadband noise suppression in electronic circuits. The component features a circular geometry with an internal diameter of approximately 10 mm (0.394 inches), allowing it to be slipped over cables without disconnection. It provides an impedance of 160 Ω at 100 MHz, ensuring effective attenuation of high-frequency electromagnetic interference across various signal and power lines.

Feature Summary

• Solid toroidal construction eliminates the need for fastening hardware or clips during installation.
• Provides significant common-mode noise attenuation through high impedance characteristics at radio frequencies.
• Free-hanging design facilitates rapid deployment on existing cable assemblies without physical modification.

Applications

• Suppression of electromagnetic interference on computer data transmission lines
• Noise filtering for general-purpose power supply cables
• Common-mode choke applications in safety-related electronic equipment

Procurement Notes

Verify that the specific lot code matches the manufacturer's current production standards. Confirm RoHS compliance status against the latest datasheet revision, as regulatory requirements may evolve. Ensure the internal diameter specification aligns precisely with the target cable outer diameter to maintain secure fitment without excessive strain on the insulation.

Selection Notes

Select this component when a non-invasive, snap-on solution is required for cable bundles where space constraints prevent the use of split-core alternatives. The solid toroid shape offers superior mechanical stability compared to hinged designs. Consider the 160 Ω impedance profile at 100 MHz to ensure adequate attenuation for the specific frequency spectrum of the targeted noise sources.

Part Context

This component is part of the WE-TOF family of ferrite cores, which focuses on solid, round geometries for versatile cabling applications. Unlike the STAR-TEC or STAR-RING series which utilize split designs for retrofitting, the WE-TOF line prioritizes uniform magnetic properties around the entire circumference. This distinction makes it suitable for new assembly processes or applications where the cable can be threaded through the core before final termination.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Split-core alternatives from other manufacturers may offer similar impedance but will differ mechanically. Direct replacement requires matching the 10 mm internal diameter and 160 Ω @ 100 MHz impedance characteristic to ensure equivalent noise suppression performance.