SB28B0221

Overview

The SB28B0221 is a hinged snap-on ferrite core manufactured by Leader Tech Inc. It belongs to the SB28 series and utilizes material grade 28 for electromagnetic interference suppression. The component features an internal diameter of 51.10 mm (2.012 inches) to accommodate cables. It provides an impedance of 30 Ohms at a test frequency of 100 MHz. The design allows for easy installation onto existing wiring without disconnection.

Feature Summary

• Hinged snap-on design enables rapid installation on cables without disconnecting wires
• Utilizes material grade 28 for effective electromagnetic interference reduction
• Large internal diameter accommodates substantial cable bundles

Applications

• Suppression of electromagnetic interference on power cables
• Noise reduction on signal wiring in electronic equipment
• EMI mitigation in industrial control systems

Procurement Notes

Verify the specific suffix designation, as variants such as SB28B0221AT exist with identical physical dimensions but potentially different material or manufacturing specifications. Confirm that the required impedance matches the standard 30 Ohm rating at 100 MHz for your application. Ensure the internal diameter of 51.10 mm fits the target cable assembly securely within the hinged mechanism.

Selection Notes

Select this model when a large aperture is required for thick cables or multiple wire bundles. The snap-on feature is critical for maintenance scenarios where permanent mounting is impractical. Compare against solid cores if higher impedance values are needed, noting that this unit offers lower impedance suitable for broadband noise suppression rather than high-frequency resonance blocking.

Part Context

This component is part of the LeaderTech SB28 family of EMI gaskets and absorbers. It serves as a passive filtering element designed to absorb high-frequency noise energy. The product falls under the broader category of ferrite cable cores used in RFI/EMI mitigation strategies across various electronic industries.

Replacement Considerations

SB28B0221AT is a documented variant with matching physical dimensions. Verify material grade consistency before substitution.