SB28B0121AB

Overview

The SB28B0121AB is a hinged snap-on ferrite core from the LeaderTech SB28 series, designed for electromagnetic interference (EMI) suppression. It features an adhesive bottom mount style and measures 12.7 mm in length, 0.7 mm in width, and 3.3 mm in thickness. The component has an internal diameter of 19.10 mm and provides an impedance of 125 ohms at 100 MHz. Packaged in bulk quantities of 20 units, it complies with RoHS3 standards.

Feature Summary

• Hinged snap-on design allows for easy installation around existing cables without disconnection.
• Adhesive bottom mount ensures secure positioning on flat surfaces or within enclosures.
• Ferrite material composition effectively suppresses high-frequency noise and reduces electromagnetic interference.

Applications

• Cable and wiring EMI suppression
• High-frequency noise reduction in electronic assemblies
• Enclosure shielding solutions

Procurement Notes

Verify the specific suffix AB to confirm the presence of the adhesive backing, as standard versions may lack this feature. Confirm compliance requirements such as RoHS3 status before integration. Check manufacturer documentation for exact impedance curves and thermal ratings to ensure suitability for the target operating environment.

Selection Notes

Select this model when a pre-assembled, adhesive-backed ferrite bead is required for rapid deployment. The 19.10 mm inner diameter accommodates cables of corresponding size. Consider the 125-ohm impedance at 100 MHz for high-frequency noise profiles. Ensure the physical dimensions fit within the available space constraints of the application.

Part Context

This component belongs to the LeaderTech SB28 series of saddle beads, which are specialized ferrite cores for EMI/RFI mitigation. The series offers various sizes and configurations, including hinged and solid designs, to address diverse cable management and shielding needs in electronic systems.

Replacement Considerations

SB28B2043AB is listed as a parameter-equivalent alternative by distributors, though dimensional verification is recommended due to differing catalog descriptions.