742701703

Overview

The Wurth Elektronik 742701703 is a WE-TOF EMI suppression toroidal ferrite core designed for broadband noise attenuation. It features an outer diameter of 25 mm, an inner diameter of 15 mm, and a height of 12 mm. The component exhibits an impedance of 125 ohms at 100 MHz. Constructed from high-permeability material, it provides effective common-mode noise reduction for cables passing through the central aperture without requiring electrical connections.

Feature Summary

• Provides broadband electromagnetic interference suppression through magnetic absorption
• Snap-on or slide-on installation design eliminates need for cable disconnection
• High permeability material ensures effective noise attenuation across wide frequency ranges

Applications

• Attenuating common-mode noise on power supply cables
• EMI suppression for computer data transmission lines
• Noise filtering in general electronic equipment wiring

Procurement Notes

Verify the specific impedance value and dimensional tolerances against the official Wurth Elektronik datasheet prior to integration. Confirm that the 15 mm inner diameter accommodates the target cable bundle with appropriate clearance. Ensure compliance with RoHS and REACH standards required by the end application environment.

Selection Notes

Select this component when a non-invasive solution for cable noise reduction is required. The 15 mm aperture suits medium-sized cable assemblies. Compare impedance characteristics at relevant operating frequencies against alternative materials to ensure sufficient attenuation for the specific noise profile encountered in the circuit layout.

Part Context

This part belongs to the WE-TOF series of EMI suppression toroidal ferrites from Wurth Elektronik. These components are engineered for rapid deployment on existing cabling infrastructure. The series offers various dimensions and material compositions to address diverse electromagnetic compatibility challenges in industrial and consumer electronics.

Replacement Considerations

Cross-reference with other Wurth Elektronik WE-TOF variants sharing identical 25 mm outer diameter and 15 mm inner diameter specifications. Verify that substitute parts maintain equivalent impedance profiles at critical frequencies to preserve original noise suppression performance.