SB28B2041AB

Overview

The Leader Tech Inc. SB28B2041AB is a hinged snap-on free hanging ferrite core designed for cable EMI suppression. It features an inner diameter of 0.402 inches (10.21mm) and outer dimensions of 0.799 inches wide by 0.402 inches high (20.30mm x 10.21mm). The component provides an impedance of 40 Ohms at 100MHz, offering effective noise filtering for interconnect cables without requiring adhesive attachment.

Feature Summary

• Hinged snap-on design allows for easy installation and removal around existing cables
• Provides electromagnetic interference suppression through magnetic material properties
• Free-hanging configuration eliminates the need for adhesive bonding

Applications

• Suppression of electromagnetic interference on interconnect cables
• Noise filtering in electronic equipment signal lines
• EMI mitigation in computer peripheral connections

Procurement Notes

Verify that the specified part number matches the exact physical dimensions and impedance requirements of your application. Confirm that the hinged mechanism is suitable for the target cable diameter. Ensure compatibility with the specific frequency range of interest, as ferrite performance varies with frequency. Check for any environmental ratings if the component will be exposed to extreme temperatures or humidity during operation.

Selection Notes

Select this component when a non-permanent, reusable EMI solution is required for round cables. The snap-on design facilitates assembly line efficiency compared to split-core adhesives. Consider the inner diameter tolerance to ensure a secure fit on the target cable bundle. Evaluate the 40 Ohm impedance at 100MHz against the noise spectrum present in the specific application environment to ensure adequate attenuation.

Part Context

This ferrite core belongs to the Leader Tech SB28 series of EMI shielding products. The company specializes in magnetic components for circuit boards, enclosures, and interconnects. This specific model represents a standard size option within their catalog of hinged ferrites, targeting general-purpose cable noise reduction in consumer and industrial electronics.

Replacement Considerations

Cross-reference with other hinged ferrite cores having similar inner diameters and impedance characteristics. Verify that alternative suppliers offer comparable mechanical hinge durability and magnetic material consistency. Ensure substitute parts meet the same dimensional constraints for housing or panel cutouts.