WBC2.5/A-4B1

Overview

The Ferroxcube WBC2.5/A-4B1 is an axial ferrite bead designed for EMI suppression in signal lines. It utilizes the 4B1 material composition to provide high impedance characteristics across a wide frequency range. The component features a 10 mm rack length and 6 mm axial lead configuration, suitable for through-hole mounting. Key electrical specifications include an impedance of 725 Ω at 100 MHz and 700 Ω at 180 MHz. This passive component serves as a wideband choke to attenuate high-frequency noise without affecting the desired signal integrity.

Feature Summary

• Provides effective electromagnetic interference suppression for single signal lines
• Utilizes specialized 4B1 ferrite material for consistent high-frequency performance
• Features axial leads for secure through-hole PCB integration

Applications

• High-speed digital signal line filtering
• EMI suppression in communication interfaces
• Wideband choke applications in sensitive electronic circuits

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as -Z or -PG may exist with identical core specifications but different packaging or handling attributes. Confirm that the 4B1 material grade matches the required impedance profile for the target frequency band. Ensure the axial lead dimensions are compatible with the printed circuit board layout and drilling specifications prior to final procurement.

Selection Notes

Select this component when a wideband choke is required for single-ended signal lines rather than differential pairs. The choice depends on the need for attenuation at frequencies around 100 MHz to 180 MHz. Consider the physical constraints of the 10 mm rack size and 6 mm lead length during mechanical design. Evaluate if the 4B1 material's permeability characteristics align with the noise spectrum present in the application environment.

Part Context

This part belongs to the WBC2.5 series of wideband chokes manufactured by Ferroxcube. The series includes various configurations such as rack and axial types, utilizing different ferrite materials like 4B1 to address diverse EMI suppression needs. These components are engineered for reliability in industrial and commercial electronics where signal integrity is critical against high-frequency disturbances.

Replacement Considerations

Direct substitutes include the WBC2.5/R-4B1 variant, which shares the same 4B1 material and core electrical properties but differs in physical form factor. Verify compatibility regarding lead spacing and overall footprint before substitution. Other axial ferrite beads from different manufacturers require careful comparison of impedance curves at 100 MHz and 180 MHz to ensure equivalent noise attenuation performance.