SM28B1775-1

Overview

The SM28B1775-1 is a solid flat ferrite cable core manufactured by LeaderTech, designed for electromagnetic interference suppression. It features an impedance of 293 Ohms measured at a test frequency of 100 MHz. The component utilizes material grade 28 and includes shock mount adhesive for secure attachment. Its physical dimensions include an internal length of 34.4 mm, an external length of 45.1 mm, an external width of 28.6 mm, an internal height of 1.52 mm, and an external height of 13.2 mm.

Feature Summary

• Solid flat construction with integrated shock mount adhesive
• High impedance performance at standard test frequencies
• Material grade 28 composition for effective noise suppression

Applications

• Suppression on flat ribbon cables
• EMI mitigation in electronic assemblies
• Noise reduction on signal transmission lines

Procurement Notes

Verify the exact part number against manufacturer documentation to ensure correct impedance and adhesive specifications. Confirm RoHS compliance status through official datasheets or environmental declarations before integration into regulated products. Cross-reference dimensional tolerances with mechanical design requirements to ensure proper fitment within the target enclosure or cable assembly constraints.

Selection Notes

Select this component when high impedance at 100 MHz is required for flat cable applications. The integrated adhesive simplifies installation compared to non-adhesive variants. Ensure the internal channel dimensions accommodate the specific thickness and width of the target flat ribbon cable without excessive force or loose fitting that could compromise EMI performance.

Part Context

This component belongs to the LeaderTech ferrite cable core product line, specifically the solid flat series. It shares the same material grade as other parts in the family but differs in impedance and physical dimensions. The inclusion of shock mount adhesive distinguishes it from standard snap-on or loose cores, providing a more permanent mounting solution for vibration-prone environments.

Replacement Considerations

The SM28B1775 variant serves as a direct substitute if adhesive mounting is not required. Verify that the impedance difference between 293 Ohms and the alternative's rating meets the circuit's noise suppression requirements. Ensure the physical envelope remains compatible with existing mounting structures.