SE28B0121

Overview

The SE28B0121 is a hinged ferrite clamp-on core designed for flat ribbon cables. It features a snap-mount design with an internal dimension of 1.5 mm to accommodate specific cable thicknesses. The component provides an impedance of 97 Ohms at a test frequency of 100 MHz. External dimensions are 25.70 mm in length, with a width and height configuration suitable for surface or free-hanging installation. The unit is constructed from material grade 28 and complies with RoHS3 standards.

Feature Summary

• Hinged snap-mount design allows for easy installation and removal around existing flat ribbon cables without disconnecting the circuit.
• Provides targeted electromagnetic interference suppression through high impedance characteristics at standard testing frequencies.
• Free-hanging mounting style offers flexible integration options within electronic enclosures or chassis assemblies.

Applications

• Suppression of noise on flat ribbon cables in computer peripherals
• EMI mitigation in consumer electronics data bus lines
• Signal integrity enhancement in industrial control panel wiring

Procurement Notes

Verify the exact internal cable thickness against the 1.5 mm specification before ordering. Confirm that the 97 Ohm impedance value aligns with the target noise frequency spectrum. Ensure the RoHS3 compliance status meets current regulatory requirements for the intended market. Check datasheet revisions for any dimensional updates prior to final PCB or enclosure layout approval.

Selection Notes

Select this model when working with flat ribbon cables requiring a non-invasive shielding solution. The hinged design is preferred over solid cores for retrofitting or frequent cable changes. Compare impedance curves if operating significantly above or below the 100 MHz reference point. Consider the external footprint constraints relative to adjacent components in dense packaging scenarios.

Part Context

This component belongs to the Leader Tech Inc. SE28 series of cable ferrites. The series specializes in hinged, snap-on solutions for flat and round cables. These parts are categorized under EMI/RFI suppression products, distinct from solid rectangular or split-core variants found in other product lines.

Replacement Considerations

SB28B0550 is listed as a parameter-equivalent alternative by distributors. Verify dimensional compatibility and impedance performance before substitution. No other direct substitutes are confirmed in public documentation.