28B1122-100

Overview

The 28B1122-100 is a solid ferrite core manufactured by Laird-Signal Integrity Products, designed for electromagnetic interference suppression on round cables. It exhibits an impedance of 307 Ohms at 100 MHz and utilizes Material 28 composition. The component features a free-hanging installation type with an inner diameter of 13.77 mm (0.542 inches), an outer diameter of 28.50 mm (1.122 inches), and a length of 28.58 mm (1.125 inches). It complies with RoHS3 standards.

Feature Summary

• Solid construction provides consistent magnetic properties without air gaps
• Free-hanging design allows easy sliding onto existing cable assemblies
• Material 28 formulation optimized for high-frequency noise attenuation

Applications

• Suppression of common-mode noise on power cables
• EMI filtering for communication signal lines
• Noise reduction in industrial equipment wiring

Procurement Notes

Verify the specific material grade and impedance tolerance against the official datasheet before integration. Confirm that the inner diameter accommodates the target cable insulation thickness with appropriate clearance. Ensure compliance with project-specific environmental regulations such as RoHS3 requirements.

Selection Notes

Select this component when high current capacity and robust mechanical stability are required for cable-mounted filtering. The large physical dimensions support higher saturation levels compared to chip beads. Evaluate the impedance profile at the specific noise frequency to ensure effective attenuation within the circuit environment.

Part Context

This part belongs to the 28B series of solid ferrite cores from Laird-Signal Integrity Products. These components are engineered for applications requiring significant noise suppression on larger gauge wires where surface-mount solutions are impractical due to size or current constraints.

Replacement Considerations

Direct substitutes include other solid ferrite cores with similar inner diameters around 13.77 mm and comparable impedance values at 100 MHz. Verify material compatibility and physical envelope dimensions to ensure fitment.