74277253

Overview

The Wurth Elektronik 74277253 is a WE-AFB LFS axial ferrite bead designed for electromagnetic interference suppression. It features a solid free-hanging core with an inner diameter of 8.00 mm and an outer diameter of 16.00 mm, measuring 28.50 mm in length. The component exhibits an impedance of 69 Ohms at 10 MHz. Constructed as an axial ferrite bead, it provides effective noise attenuation for cable applications without requiring mounting hardware.

Feature Summary

• Solid free-hanging design eliminates the need for installation tools or fasteners
• Axial ferrite bead configuration for direct cable integration
• Optimized impedance characteristics for high-frequency noise suppression

Applications

• Electromagnetic interference suppression on cables
• Signal line noise filtering
• Power cable EMI mitigation

Procurement Notes

Verify the specific impedance value and frequency rating against project requirements before ordering. Confirm that the inner diameter accommodates the target cable gauge. Ensure compliance with RoHS and REACH regulations if required by the end product specifications. Cross-reference the part number to distinguish between similar WE-AFB series variants.

Selection Notes

Select this component when a non-mountable, axial ferrite solution is required for cables up to 8 mm in diameter. Consider the 69 Ohm impedance at 10 MHz for appropriate frequency range coverage. Evaluate physical dimensions to ensure adequate clearance within the assembly enclosure compared to snap-on alternatives.

Part Context

This part belongs to the WE-AFB LFS series of axial ferrite beads from Wurth Elektronik. These components are distinct from snap-on cores as they lack opening mechanisms. The series focuses on providing simple, cost-effective EMI suppression solutions for various cable types through fixed geometry designs.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing cable diameters and impedance profiles when considering alternative suppliers.