28B0500-300

Overview

The 28B0500-300 is a solid free-hanging ferrite core manufactured by Laird-Signal Integrity Products, designed for EMI suppression on cables. It features Material Type 28 and provides an impedance of 118 Ohms at 100 MHz. The component has an inner diameter of 7.92 mm (0.312 inches), an outer diameter of 12.70 mm (0.500 inches), and a length of 12.70 mm (0.500 inches). It operates within a temperature range of -40°C to +125°C and complies with RoHS3 standards.

Feature Summary

• Utilizes Material Type 28 formulation for effective high-frequency noise attenuation
• Solid construction ensures structural integrity during installation
• Free-hanging mounting style allows flexible cable routing

Applications

• Suppression of electromagnetic interference on power cables
• Noise filtering on signal transmission lines
• EMI reduction in industrial equipment wiring

Procurement Notes

Verify the specific impedance requirement of 118 Ohms at 100 MHz against design specifications. Confirm that the 7.92 mm inner diameter accommodates the target cable bundle without excessive strain. Ensure compliance with RoHS3 regulations if required by the end product. Check material type 28 suitability for the operating frequency range. Validate physical dimensions fit within the available enclosure space.

Selection Notes

Select this component when a robust, solid ferrite core is needed for cables up to 7.92 mm in diameter. Material Type 28 offers a balance of permeability and resistivity suitable for general EMI applications. The free-hanging design simplifies assembly compared to split cores. Consider the 118 Ohm impedance profile for the specific noise frequencies present in the system.

Part Context

This part belongs to the 28B series of cable ferrites from Laird-Signal Integrity Products. The series utilizes Material Type 28, which is optimized for broadband noise suppression. These components are commonly used in conjunction with other EMI filtering solutions to meet regulatory emissions standards in electronic assemblies.

Replacement Considerations

Part number 2643801902 from Fair-Rite Products Corp. is listed as a similar alternative. Verify dimensional compatibility and impedance characteristics before substitution.