SM28R1953

Overview

The SM28R1953 is a solid flat ferrite cable core manufactured by Leader Tech Inc. under the Ferrishield series. It features an impedance of 109 Ohms at a test frequency of 100 MHz and utilizes material grade 28. The component measures 44 mm in internal length, 1.50 mm in internal height, and 1.732 inches (approximately 44 mm) in external length with a diameter of 0.059 inches. It includes shock mount adhesive for secure attachment to ribbon cables.

Feature Summary

• Solid flat design optimized for ribbon cable applications
• Integrated shock mount adhesive for secure installation
• High impedance performance at standard test frequencies

Applications

• EMI suppression on ribbon cables
• Interconnect cable shielding
• Electronic enclosure signal integrity enhancement

Procurement Notes

Verify the specific impedance value and physical dimensions against the official datasheet before integration. Confirm RoHS compliance status and adhesive type requirements for your assembly process. Ensure the part number matches the exact variant required, as Leader Tech offers multiple ferrite core configurations with differing electrical characteristics.

Selection Notes

Select this component when dealing with flat ribbon cables requiring fixed EMI suppression. The integrated adhesive simplifies mounting compared to hinged or clamp-style cores. Consider the 109 Ohm impedance rating relative to the noise spectrum present in your application to ensure effective attenuation.

Part Context

Leader Tech Inc. specializes in EMI shielding solutions for circuit boards and interconnects. The SM28R1953 belongs to the Ferrishield line, which focuses on providing robust interference mitigation for high-speed digital signals and sensitive analog lines within electronic systems.

Replacement Considerations

Cross-reference with other Leader Tech ferrite cores such as the SM28R1531 if different impedance or dimensions are needed. Verify that any substitute maintains the same adhesive configuration and material grade to preserve mechanical stability and electromagnetic performance.