28B1250-2

Overview

The Leader Tech Inc. 28B1250-2 is a solid free-hanging ferrite core designed for cable EMI suppression. It utilizes Ferrite #28 formulation, providing an impedance of 151 Ohms at 100 MHz. The component features a large bead geometry with an inner diameter of 0.750 inches (19.05 mm), an outer diameter of 1.250 inches (31.75 mm), and a length of 1.000 inch (25.40 mm). This specific model belongs to the FerriShield series and is manufactured in the USA.

Feature Summary

• Solid free-hanging design for easy installation on cables
• Ferrite #28 formulation for effective high-frequency noise suppression
• Large bead geometry accommodating substantial cable diameters

Applications

• Suppression of electromagnetic interference on power and signal cables
• EMI filtering in electronic enclosures and circuit board assemblies
• Noise reduction in telecommunications and data transmission lines

Procurement Notes

Verify that the target cable diameter falls within the 0.750-inch inner diameter specification before procurement. Confirm that the required impedance characteristics align with the Ferrite #28 material properties. Ensure the physical dimensions fit the available space in the assembly. Check for any specific RoHS compliance requirements if applicable to your project standards.

Selection Notes

Select this component when a large-diameter cable requires significant EMI suppression without permanent mounting hardware. The free-hanging style allows for flexible placement along the cable run. Consider the 151 Ohm impedance at 100 MHz to ensure it matches the noise frequency spectrum. Compare against smaller bead sizes if cable clearance is limited.

Part Context

This part is part of Leader Tech's FerriShield line of EMI shielding products. The company specializes in manufacturing shielding solutions for circuit boards, enclosures, and thermal applications. The 28B1250-2 represents their large-bead cable ferrite category, distinct from saddle beads or sheet absorbers offered in other series.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing cable assemblies before attempting substitution.