74270057

Overview

The Würth Elektronik WE-AFB 74270057 is an axial ferrite cable core designed for electromagnetic interference suppression. It features a nickel-zinc ferrite material composition with a minimum operating frequency of 25MHz and a maximum frequency of 100MHz. The component has an inner diameter of 11.5mm, an outer diameter of 19mm, and a height of 50.8mm. It provides an impedance of 202 Ohms at the specified frequency range.

Feature Summary

• Provides effective attenuation of high-frequency noise on cables within the 25MHz to 100MHz spectrum
• Axial ring geometry allows for easy installation by threading cables through the center bore
• Constructed from durable nickel-zinc ferrite material suitable for general electronic environments

Applications

• Suppression of electromagnetic interference on coaxial cables
• Noise reduction on multi-wire cables
• Attenuation of common mode noise on power supply lines
• EMI filtering on data communication cables

Procurement Notes

Verify the specific impedance value and dimensional tolerances against the official Wurth Elektronik datasheet prior to integration. Confirm that the inner diameter accommodates the target cable bundle without excessive force. Ensure compliance with RoHS and REACH regulations as stated in the manufacturer documentation.

Selection Notes

Select this component when axial mounting is preferred over snap-on or split-core designs. The 11.5mm inner diameter requires sufficient clearance around the cable assembly. Consider the physical length of 50.8mm for available space constraints on the equipment chassis or cable harness.

Part Context

This part belongs to the WE-AFB series of axial ferrite beads manufactured by Würth Elektronik. These components are distinct from surface-mount chip beads and are intended for direct cable wrapping or threading applications to mitigate radiated and conducted emissions in electronic systems.

Replacement Considerations

Cross-reference dimensions and impedance curves with other WE-AFB variants such as 74270052 or 74270053 if mechanical fitment differs. Verify material composition matches for equivalent frequency response characteristics.