28R1128-200

Overview

The 28R1128-200 is a solid ferrite core manufactured by Laird-Signal Integrity Products, designed for cable and wiring applications. It features a rectangular geometry with an internal slot to accommodate flat ribbon cables. The component exhibits an impedance of 145 Ohms at a test frequency of 100 MHz. Key physical dimensions include an internal length of 11.27 mm, an external length of 16.0 mm, an external width of 11.27 mm, and an external height of 3.81 mm. The material composition is designated as Type 28 ferrite.

Feature Summary

• Solid construction provides structural integrity for EMI suppression on flat ribbon cables
• Rectangular design with internal slot optimized for specific cable geometries
• Type 28 ferrite material offers high impedance characteristics in the RF spectrum

Applications

• EMI suppression on flat ribbon cables
• Signal integrity enhancement in electronic assemblies
• Cable and wiring noise filtering

Procurement Notes

Verify the exact part number against official manufacturer documentation to ensure compatibility with specific cable widths. Confirm that the internal slot dimensions match the target ribbon cable thickness. Check for RoHS compliance status if required by project specifications. Ensure storage conditions are appropriate for ferrite components. Cross-reference datasheets for any updates regarding material properties or dimensional tolerances.

Selection Notes

Select this component when flat ribbon cables require EMI suppression. The internal slot dimensions must accommodate the specific cable thickness. The 145 Ohm impedance at 100 MHz suits typical digital signal noise frequencies. Consider the external dimensions for available space within the enclosure. Verify that the solid design meets mechanical requirements compared to split-core alternatives.

Part Context

This component belongs to the 28R series of ferrite cores from Laird-Signal Integrity Products. The series focuses on solid cores for fixed cable installations. The '28' designation indicates the specific ferrite material formulation used for its magnetic properties. This product line supports signal integrity management in various electronic environments.

FAQ

What is the internal slot dimension for cable accommodation?

The internal length is 11.27 mm, which defines the maximum cable thickness the core can accept.

At what frequency is the impedance specified?

The impedance of 145 Ohms is measured at a test frequency of 100 MHz.