742701112

Overview

The Würth Elektronik part number 742701112 is a cylindrical ferrite toroid from the WE-TOF series. It features an inner diameter of 25.4 mm and a length of 7.5 mm. The component exhibits an impedance of 39 Ω at 25 MHz and 350 Ω at higher frequencies, specifically noted as 350 ohm in product information. This design supports cable mounting for electromagnetic interference suppression.

Feature Summary

• Cylindrical toroidal geometry for uniform magnetic flux distribution
• Snap-on or slide-on installation method for rapid cable integration
• High impedance characteristics effective for broadband noise attenuation

Applications

• Electromagnetic interference suppression on cables
• Common mode choke applications for signal lines
• Noise filtering in electronic equipment harnesses

Procurement Notes

Verify the specific impedance curve and frequency response against the official datasheet before finalizing the design. Confirm that the 25.4 mm inner diameter accommodates the target cable bundle with sufficient clearance. Ensure compliance with RoHS and REACH requirements if mandated by the end application standards.

Selection Notes

Select this component when a larger bore size is required compared to standard snap-on cores. The cylindrical shape offers consistent performance around the circumference. Compare the 39 Ω @ 25 MHz specification against system noise profiles to ensure adequate attenuation without excessive insertion loss for differential signals.

Part Context

This part belongs to the WE-TOF (Wurth Elektronik Toroidal Ferrite) family. These components are distinct from split-core designs due to their solid cylindrical construction. They are typically used where high saturation current or robust mechanical integrity is needed for permanent cable installations.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-referencing requires matching the 25.4 mm ID, 7.5 mm length, and 39 Ω @ 25 MHz impedance profile.