SB28B0121

Overview

The Leader Tech SB28B0121 is a hinged snap-on ferrite core designed for cable EMI suppression. It features a split-core construction that allows installation around existing cables without disconnection. The component provides an impedance of 35 Ohms at 100 MHz, effectively attenuating high-frequency noise on wiring harnesses. Key physical dimensions include an inner diameter of 25.70 mm (1.012 inches), an outer width of 12.70 mm (0.500 inches), and a height of 3.30 mm (0.130 inches). This configuration ensures secure retention on the conductor while maintaining consistent electromagnetic interference filtering performance.

Feature Summary

• Hinged snap-on design enables rapid installation on pre-existing cables
• Provides targeted high-frequency noise attenuation via ferrite material
• Split-core structure eliminates need to disconnect or cut wiring

Applications

• Attenuating EMI/RFI on computer peripheral cables
• Noise suppression in automotive wiring harnesses
• Filtering conducted emissions on industrial control signal lines

Procurement Notes

Verify the specific suffix designation against the manufacturer's current catalog to ensure compatibility with required impedance characteristics and physical dimensions. Confirm RoHS compliance status through official documentation prior to integration into regulated assemblies. Cross-reference the part number with authorized distributor listings to validate authenticity and traceability.

Selection Notes

Select this component when a non-invasive solution is required for adding ferrite suppression to installed cabling. Ensure the cable diameter falls within the 25.70 mm inner diameter specification to guarantee a secure fit. Consider the 35 Ohm impedance rating relative to the target noise frequency spectrum to verify effective attenuation capabilities for the specific application environment.

Part Context

This part belongs to the Leader Tech SB28 series of flat cable ferrites. These components are engineered for compact EMI suppression in space-constrained environments. The series offers various impedance ratings and dimensions to suit different cable sizes and noise profiles, providing a standardized solution for conducting interference mitigation across multiple electronic sectors.

Replacement Considerations

Direct substitutes must match the 25.70 mm inner diameter and 35 Ohm @ 100 MHz impedance. Verify hinge mechanism integrity and material composition for equivalent thermal and environmental resistance.