7427007

Overview

The Würth Elektronik 7427007 is a WE-AFB series axial ferrite cable core designed for EMI suppression. It features a cylindrical geometry with an outer diameter of 14.2 mm, inner diameter of 6.4 mm, and length of 28.5 mm. The component provides an impedance of 278 ohms at 25 MHz when configured as a single turn. This passive device is constructed from high-performance ferrite material to attenuate high-frequency noise on cables without affecting signal integrity.

Feature Summary

• Provides effective electromagnetic interference (EMI) attenuation for cable assemblies
• Features a robust cylindrical design suitable for axial cable routing
• Engineered for high-frequency noise suppression in sensitive electronics

Applications

• General electronics equipment noise filtering
• Power supply line EMI suppression
• Industrial control system cable protection
• Portable device signal integrity enhancement

Procurement Notes

Verify the specific impedance tolerance and frequency response characteristics against the official datasheet before integration. Confirm that the cable diameter falls within the specified inner diameter range of 6.4 mm to ensure proper fit. Check for RoHS compliance status if required by your manufacturing standards. Ensure the application environment does not exceed the thermal limits defined in the technical documentation.

Selection Notes

Select this component when a high-impedance axial ferrite core is required for cables up to 6.4 mm in diameter. The 278 ohm impedance at 25 MHz makes it suitable for suppressing noise in the upper VHF range. Consider the physical dimensions of 28.5 mm length for available space constraints. Compare with other WE-AFB variants if different impedance values or form factors are needed for specific frequency bands.

Part Context

This part belongs to the WE-AFB family of axial ferrite cores manufactured by Würth Elektronik. These components are widely used in passive EMI suppression applications across various industries. The 7427007 specifically offers a balance of size and impedance for general-purpose cable shielding needs.

Replacement Considerations

Consult the manufacturer's cross-reference list for direct substitutes. Verify that any alternative part matches the 14.2 mm OD, 6.4 mm ID, and 28.5 mm length dimensions. Ensure the replacement maintains similar impedance characteristics at 25 MHz to preserve circuit performance.