CST9.5/5.1/15-3S4

Overview

The Ferroxcube CST9.5/5.1/15-3S4 is a cylindrical ferrite core designed for cable shielding applications. It utilizes the 3S4 material composition, which provides high magnetic permeability for effective common-mode noise suppression in the frequency range of 1 MHz to 100 MHz. The component features a single central hole with a diameter of 4.75 mm, accommodating standard cable sizes. Its external dimensions are specified as 9.5 mm in diameter and 15.5 mm in length. The core exhibits an impedance of 110 ohms at 100 MHz, ensuring efficient attenuation of electromagnetic interference on signal and power lines.

Feature Summary

• Cylindrical geometry optimized for sliding onto cables without disconnection
• High permeability 3S4 material formulation for broadband noise suppression
• Single-hole design facilitating easy installation on existing wiring harnesses

Applications

• Suppression of common-mode noise on Ethernet and USB data cables
• EMI reduction on power supply input lines
• Noise filtering in industrial control system cabling

Procurement Notes

Verify the specific suffix (3S4) matches the required frequency response characteristics for your application. Confirm physical dimensions against cable outer diameters to ensure proper fit. Check manufacturer datasheets for temperature stability ratings and saturation limits under expected operating conditions.

Selection Notes

Select this part when broadband suppression between 1 MHz and 100 MHz is required. The 3S4 material offers a balance of permeability and resistivity suitable for general-purpose EMI mitigation. Ensure the cable diameter fits within the 4.75 mm bore size. Consider mechanical constraints regarding the 15.5 mm axial length during PCB or chassis layout planning.

Part Context

This component belongs to the CST series of cylindrical ferrite cores manufactured by Ferroxcube. These cores are distinct from snap-on beads due to their solid construction and are typically used where higher performance or specific mounting configurations are needed compared to standard clip-on types.

Replacement Considerations

Substitute parts must match the 3S4 material grade and similar impedance profile at 100 MHz. Verify that alternative cylindrical cores maintain compatible internal diameter and external dimensions for mechanical interchangeability.