28B1142-000

Overview

The 28B1142-000 is a solid, free-hanging ferrite core manufactured by Laird-Signal Integrity Products. It utilizes Material 28 composition to provide electromagnetic interference suppression for cables and wires. The component features a cylindrical design with an inner diameter of 0.748 inches (19.00mm), an outer diameter of 1.142 inches (29.01mm), and a length of 0.295 inches (7.49mm). It exhibits an impedance of 85 Ohms at 100MHz. The part is RoHS3 compliant and classified under ECCN EAR99.

Feature Summary

• Solid cylindrical construction designed for free-hanging installation on cables
• Utilizes Material 28 formulation composed of iron, nickel, and zinc oxides
• Provides high impedance characteristics for effective electromagnetic interference suppression

Applications

• Electromagnetic interference suppression in cable assemblies
• Noise filtering for wire harnesses
• Signal integrity enhancement in electronic interconnects

Procurement Notes

Verify the specific material grade and impedance specifications against the official manufacturer datasheet prior to integration. Confirm that the physical dimensions, particularly the inner diameter, accommodate the target cable size without mechanical stress. Ensure compliance with project-specific environmental regulations such as RoHS3 requirements.

Selection Notes

Select this component when a non-split, solid ferrite core is required for permanent cable treatment. The large inner diameter accommodates thicker cables compared to standard bead cores. Consider the fixed geometry and free-hanging mounting style during layout planning to ensure adequate clearance and secure attachment methods.

Part Context

This component belongs to the 28B series of cable ferrites from Laird-Signal Integrity Products. These cores are engineered for broadband noise reduction using specialized oxide mixtures. The series offers various sizes to suit different cable diameters while maintaining consistent material performance characteristics across the product line.

Replacement Considerations

Direct substitutes include other solid ferrite cores with matching inner diameters and similar impedance profiles. Verify compatibility with existing cable assemblies before swapping. Alternative materials may offer different frequency response curves.