28R1127-000

Overview

The Laird-Signal Integrity Products 28R1127-000 is a solid free-hanging ferrite core designed for EMI suppression. It features a rectangular geometry with an internal slot measuring 0.925 inches (23.50mm) in width and 0.067 inches (1.70mm) in height. The component exhibits an impedance of 220 Ohms at 100MHz. Its external dimensions are 1.125 inches (28.57mm) in width and 0.303 inches (7.70mm) in height.

Feature Summary

• Solid construction provides mechanical stability for cable assemblies
• Rectangular design accommodates flat or ribbon cables via internal slot
• Free-hanging installation allows flexible mounting on harnesses

Applications

• EMI suppression on flat cable assemblies
• Common mode noise reduction on ribbon type cables
• Signal integrity enhancement in electronic interconnects

Procurement Notes

Verify the specific impedance value and physical dimensions against your schematic requirements before ordering. Confirm that the internal slot size matches the target cable thickness to ensure proper fit. Check RoHS compliance status if required by your manufacturing standards. Ensure the supplier provides original manufacturer documentation to validate authenticity.

Selection Notes

Select this component when dealing with flat or ribbon cables requiring common mode noise suppression. The rectangular shape and internal slot are critical for accommodating non-cylindrical conductors. Ensure the application environment does not require high current handling, as this is a passive magnetic core without electrical ratings.

Part Context

This part belongs to Laird's line of cable ferrites specifically engineered for suppressing electromagnetic interference on flat cabling. Unlike cylindrical cores, the rectangular profile with a dedicated slot allows for easier installation on wide ribbon cables without disassembly. It serves as a passive filter element in signal and power transmission lines.

Replacement Considerations

Direct substitutes include other Laird rectangular ferrite cores such as the 28R1240 series, provided the impedance and slot dimensions match the design constraints. Verify compatibility with existing cable geometries before swapping.