28R1861-000

Overview

The Laird-Signal Integrity Products 28R1861-000 is a solid ferrite core designed for flat ribbon cable applications. It features a rectangular geometry with an internal length of 39 mm, external length of 47.7 mm, external width of 31 mm, and external height of 15 mm. The component exhibits an impedance of 244 Ohms at a test frequency of 100 MHz. Constructed from material grade 28, it provides effective electromagnetic interference suppression for high-density data cables.

Feature Summary

• Solid construction optimized for flat ribbon cable geometries
• High impedance performance at standard test frequencies
• Rectangular cross-section design for secure cable retention

Applications

• Flat ribbon cable EMI suppression
• Data bus noise reduction
• Signal integrity enhancement in high-speed digital interfaces

Procurement Notes

Verify the specific manufacturer designation as sources list both Qnity and Laird for this part number. Confirm the exact impedance value matches your design requirements, as some listings indicate 261 Ohms while others specify 244 Ohms. Ensure the rectangular dimensions align with your cable bundle size before finalizing procurement orders.

Selection Notes

Select this component when managing flat ribbon cables requiring robust EMI shielding without the need for split-core accessibility. The solid design offers superior mechanical stability compared to clamshell types. Verify that the internal cavity dimensions accommodate the specific thickness and width of the target ribbon cable assembly.

Part Context

This component belongs to the 28R series of ferrite cable cores manufactured by Laird-Signal Integrity Products. The series focuses on solid, non-split designs intended for permanent installation on flat ribbon cables. These cores are engineered to provide consistent attenuation characteristics across high-frequency noise spectra.

FAQ

What is the internal cavity dimension of the 28R1861-000?

The internal length is 39 mm and the internal height is 3 mm.

Is the 28R1861-000 a split or solid core?

It is a solid ferrite core, not a split or clamshell design.