74270117

Overview

The Würth Elektronik 74270117 is a WE-TOF series EMI suppression toroidal ferrite core constructed from Nickel-Zinc (NiZn) material. It provides broadband frequency attenuation for electromagnetic interference mitigation. The component features a cylindrical geometry with an inner diameter of 3.4 mm, an outer diameter of 6.5 mm, and a height of 8.5 mm. It exhibits an impedance of 343 Ohms at a test frequency of 25 MHz.

Feature Summary

• Broadband noise suppression capability utilizing Nickel-Zinc ferrite composition
• Toroidal geometry designed for cable wrapping applications
• High impedance characteristic optimized for low-frequency EMI attenuation

Applications

• Electromagnetic interference suppression on data cables
• Noise filtering for power supply lines
• EMI mitigation in automotive electronic assemblies

Procurement Notes

Verify the specific impedance value and physical dimensions against the official Wurth Elektronik datasheet prior to integration. Confirm that the Nickel-Zinc material properties align with the target frequency spectrum requirements. Ensure mechanical fit within the designated cable routing space.

Selection Notes

Select this component when broadband attenuation is required across lower frequency ranges. The NiZn material offers higher resistivity compared to MnZn alternatives, making it suitable for digital signal lines. Evaluate the cable diameter to ensure compatibility with the 3.4 mm inner aperture.

Part Context

This part belongs to the WE-TOF family of EMI suppression components. These cores are engineered for easy installation by wrapping cables through the central aperture. They serve as passive filters to reduce conducted emissions without requiring active circuitry or complex mounting structures.

Replacement Considerations

Cross-reference alternative toroidal ferrites with matching 343 Ohm impedance at 25 MHz and compatible inner diameters. Verify material composition equivalence to ensure similar attenuation profiles.