74270031

Overview

The Würth Elektronik 74270031 is a WE-AFB EMI suppression axial ferrite bead constructed from NiZn material, designed for broadband frequency range applications. It features a cylindrical form factor with an outer diameter of 11.5 mm and a total length of 20.5 mm. The component provides an impedance of 163 Ω at 25 MHz and reaches 625 Ω at higher frequencies within its operational spectrum.

Feature Summary

• Constructed from NiZn material suitable for broadband frequency suppression
• Axial ferrite bead design for cable integration
• High impedance characteristics for effective EMI noise reduction

Applications

• EMI suppression on cables
• Broadband frequency noise filtering
• General electronic equipment signal integrity protection

Procurement Notes

Verify the specific impedance requirement against the 163 Ω @ 25 MHz specification to ensure compatibility with the target noise frequency. Confirm that the 11.5 mm outer diameter fits the available cable bundle space. Ensure the NiZn material composition aligns with the intended broadband application requirements.

Selection Notes

Select this component when broadband suppression is required rather than narrowband filtering. The NiZn material offers distinct performance characteristics compared to MnZn alternatives. Verify that the axial geometry suits the installation method and that the 20.5 mm length does not interfere with adjacent components or housing constraints.

Part Context

This part belongs to the WE-AFB series of EMI suppression axial ferrite beads manufactured by Würth Elektronik. These components are specifically engineered to attenuate electromagnetic interference on cables and wires. The series utilizes NiZn ferrite materials to provide effective noise suppression across a wide frequency range.

FAQ

What is the impedance value at 25 MHz?

The impedance is 163 Ω at 25 MHz.

What material is used for the core?

The core is made of NiZn (Nickel Zinc) material.