28B0296-000

Overview

The 28B0296-000 is a solid, free-hanging cylindrical ferrite core manufactured by Laird-Signal Integrity Products. It provides electromagnetic interference suppression with an impedance of 136 ohms at 100 MHz. The component features an inner diameter of 2.39 mm (0.094 inches), an outer diameter of 7.52 mm (0.296 inches), and a length of 7.54 mm (0.297 inches). Designed for cable applications, it operates within standard environmental conditions and complies with RoHS3 regulations.

Feature Summary

• Solid construction designed for free-hanging installation on cables
• Provides high impedance to suppress electromagnetic interference
• Cylindrical geometry accommodates specific wire gauges

Applications

• Signal integrity enhancement in electronic assemblies
• Electromagnetic interference filtering for data cables
• Noise suppression in telecommunications infrastructure

Procurement Notes

Verify the exact impedance tolerance and material composition against the official Laird datasheet before integration. Confirm that the inner diameter matches the target cable bundle size to ensure proper fit. Check for updated regulatory compliance status, such as RoHS3, as manufacturing sources may vary. Ensure the part number suffix corresponds to the specific physical dimensions required for the design.

Selection Notes

Select this component when a non-snap-on, solid ferrite solution is required for permanent cable treatment. The 136-ohm impedance at 100 MHz targets specific noise frequencies common in digital signaling. Consider the 2.39 mm inner diameter constraint when choosing compatible wiring harnesses. This form factor is suitable for applications where snap-fit cores are impractical or insufficient for the required mechanical stability.

Part Context

This ferrite core belongs to the 28B series from Laird-Signal Integrity Products, which specializes in signal integrity solutions. The series offers various impedance values and dimensions to address different EMI challenges. As a solid core, it differs from split-core designs by requiring cable insertion during assembly rather than clamping around existing wires.

Replacement Considerations

Direct substitutes must match the 136-ohm impedance at 100 MHz and the 2.39 mm inner diameter. Verify that alternative solid cores maintain similar outer dimensions and length to fit within the designated enclosure space. Ensure the replacement material exhibits comparable frequency response characteristics.