28R0546-000

Overview

The Laird-Signal Integrity Products 28R0546-000 is a solid ferrite cable core designed for electromagnetic interference suppression. It features a material composition designated as Type 28, providing an impedance of 193 Ohms at a test frequency of 100 MHz. The component has a flat ribbon design with dimensions of 0.709 inches (18.00 mm) in length, 0.370 inches inner diameter, and 0.032 inches height. It utilizes a free-hanging mounting type and is packaged in trays.

Feature Summary

• Solid construction with flat ribbon geometry for uniform cable coverage
• Type 28 ferrite material optimized for high-frequency noise attenuation
• Free-hanging installation method allowing easy application to existing cables

Applications

• Attenuating common-mode noise on data cables
• Preserving differential signal integrity while suppressing EMI
• General-purpose electromagnetic interference filtering on wiring harnesses

Procurement Notes

Verify the specific packaging configuration, as sources indicate both bulk and tray options. Confirm RoHS3 compliance status directly with the manufacturer or authorized distributor. Ensure the selected variant matches the required impedance characteristics for your specific frequency range. Cross-reference the part number with official Laird datasheets to confirm current production status and availability constraints before finalizing procurement orders.

Selection Notes

Select this component when flat ribbon cables require effective common-mode noise reduction without altering the physical cable structure. The Type 28 material offers a balanced impedance profile suitable for general digital signal lines. Consider the 193 Ohm impedance at 100 MHz to ensure compatibility with the noise frequencies present in your system. The free-hanging design facilitates retrofitting onto existing assemblies where permanent mounting is not feasible.

Part Context

This ferrite core belongs to the 28R series from Laird-Signal Integrity Products, specializing in cable ferrites for signal integrity management. The series focuses on solid cores that provide consistent magnetic properties along the entire length of the cable. These components are engineered to suppress high-frequency electromagnetic interference effectively while maintaining the mechanical flexibility and electrical performance of the connected cabling systems.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.