742700381

Overview

The Wurth Elektronik part number 742700381 is an EMI suppression axial ferrite bead from the WE-AFB series. It features a cylindrical design with a diameter of 3.55 mm and a length of 3.55 mm. The component provides an impedance of 142 Ω at 100 MHz, utilizing material properties defined in specification SPECWE-AFB. This axial ferrite bead is designed for direct integration into cable assemblies to attenuate high-frequency electromagnetic interference.

Feature Summary

• Provides targeted attenuation of high-frequency noise through axial ferrite construction
• Designed for direct integration into cable assemblies without additional mounting hardware

Applications

• EMI suppression in cable assemblies
• High-frequency noise attenuation

Procurement Notes

Verify the specific impedance value and physical dimensions against the official datasheet before procurement. Confirm that the axial form factor matches the target cable assembly requirements. Ensure compliance with relevant environmental standards such as RoHS if required by the end application specifications.

Selection Notes

Select this component when a compact axial ferrite solution is required for cable-level EMI suppression. The 3.55 mm diameter suits standard cable sizes. Compare the 142 Ω impedance at 100 MHz against the noise spectrum of the application to ensure effective attenuation. Consider the WE-AFB series characteristics for similar axial ferrite needs.

Part Context

This component belongs to the Wurth Elektronik WE-AFB series, which specializes in axial ferrite beads for EMI suppression. These components are distinct from snap-on cores, offering a permanent axial solution for cables. The series utilizes specific magnetic materials optimized for high-frequency noise reduction in electronic interconnects.

FAQ

What is the impedance of the 742700381 at 100 MHz?

The impedance is 142 Ω at 100 MHz.

What are the physical dimensions of this ferrite bead?

The ferrite bead has a diameter of 3.55 mm and a length of 3.55 mm.