74270191

Overview

The Wurth Elektronik part number 74270191 is a WE-TOF EMI suppression toroidal ferrite core. It features an outer diameter of 33.4 mm, an inner diameter of 6.1 mm, and an external height of 35.5 mm. The component provides an impedance of 165 ohms at 100 MHz. Constructed from specialized ferrite material, it is designed for high-frequency noise attenuation in electronic circuits.

Feature Summary

• Provides effective electromagnetic interference suppression through high impedance characteristics
• Toroidal geometry ensures efficient magnetic flux containment
• Designed for direct cable wrapping installation without additional hardware

Applications

• Attenuating common mode noise on power supply cables
• EMI suppression on data transmission lines
• Noise filtering in automotive electronic modules

Procurement Notes

Verify the specific impedance value and physical dimensions against the official Wurth Elektronik datasheet prior to ordering. Confirm that the cable diameter falls within the specified inner diameter range to ensure proper fit and performance. Check for updated compliance certifications such as RoHS and REACH status directly from the manufacturer's documentation.

Selection Notes

Select this component when a toroidal shape is required for uniform magnetic field distribution around the conductor. Ensure the operating frequency aligns with the peak impedance region of the ferrite material. Consider the thermal environment and current carrying capacity of the cable rather than the ferrite itself, as the core primarily affects high-frequency signals.

Part Context

This component belongs to the WE-TOF series of EMI suppression toroids from Wurth Elektronik. These cores are engineered for broadband noise reduction across various electronic applications. The series offers standardized dimensions to facilitate consistent design integration across different product lines.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires matching the outer diameter, inner diameter, height, and impedance profile to maintain circuit performance.