74270120

Overview

The Würth Elektronik part number 74270120 is a cylindrical toroidal ferrite core from the WE-TOF series. It features an inner diameter of 13 mm and an outer diameter of 21 mm, with a length of 12 mm. The component utilizes 4W620 material composition to provide electromagnetic interference suppression. Key electrical parameters include an impedance of 88 Ω at 100 MHz and 35 Ω at 25 MHz. It is designed for single-turn cable applications.

Feature Summary

• Cylindrical toroidal geometry for uniform magnetic flux distribution
• Engineered for high-frequency common-mode noise attenuation
• Compatible with standard cable clamping or snap-fit mounting methods

Applications

• Power supply cable filtering
• Computer data line protection
• General electronic equipment EMI suppression

Procurement Notes

Verify the specific suffix code against the manufacturer datasheet to confirm exact dimensional tolerances and material batch consistency. Ensure the selected variant matches the required cable diameter for proper mechanical fit. Cross-reference the RoHS and REACH compliance status in the latest official documentation before finalizing procurement orders.

Selection Notes

Select this component when a cylindrical form factor is preferred over split-ring designs for permanent installations. The 13 mm aperture accommodates cables requiring moderate clearance. Evaluate the 88 Ω impedance at 100 MHz against the target noise frequency spectrum to ensure adequate attenuation performance for the specific application environment.

Part Context

This part belongs to the WE-TOF series of ferrite cores manufactured by Würth Elektronik. The series provides various sizes and impedances tailored for different cable diameters and frequency ranges. The 74270120 specifically addresses needs for medium-diameter cables requiring robust high-frequency noise suppression in compact spaces.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided source data.