28R2170-100

Overview

The Laird-Signal Integrity Products 28R2170-100 is a solid, free-hanging cable ferrite core designed for electromagnetic interference suppression. It features a flat axial geometry with an inner dimension of 1.720 inches wide by 0.050 inches high (43.69mm x 1.27mm) and an outer dimension of 2.170 inches wide by 0.500 inches high (55.12mm x 12.70mm). The component has a length of 2.201 inches (55.91mm) and provides an impedance of 170 Ohms at 100MHz. It utilizes material composition 28 and operates up to a maximum temperature of 125°C.

Feature Summary

• Solid construction with free-hanging installation type for flexible cable routing
• Flat axial profile accommodating specific cable cross-sections
• Material 28 formulation optimized for high-frequency noise attenuation

Applications

• Suppression of common-mode noise on flat ribbon cables
• EMI filtering in signal integrity critical assemblies
• Noise reduction on power lines within electronic enclosures

Procurement Notes

Verify the exact physical dimensions against the target cable assembly, as the flat inner profile requires precise width and height matching. Confirm that the operating environment does not exceed the 125°C maximum temperature rating. Ensure the 170 Ohm impedance characteristic aligns with the required noise frequency spectrum. Check for RoHS3 compliance requirements if applicable to the final product regulations.

Selection Notes

Select this component when a large aperture is required for thick or flat cables where standard cylindrical cores cannot fit. The 170 Ohm impedance at 100MHz indicates suitability for higher frequency noise profiles compared to lower impedance alternatives. Consider the solid design for durability in fixed installations rather than snap-on variants. Evaluate the physical footprint constraints within the device chassis to ensure adequate clearance for the 2.170-inch outer width.

Part Context

This part belongs to the 28B/28R series of cable ferrites from Laird-Signal Integrity Products. The '28' designation refers to the specific magnetic material composition used for high-frequency performance. The 'R' suffix typically denotes the rectangular or flat profile geometry, distinguishing it from circular solid cores like the 28B0157-100. These components are part of a broader portfolio aimed at enhancing signal integrity in complex electronic systems.

Replacement Considerations

Direct substitutes must match the 170 Ohm @ 100MHz impedance and the specific flat inner dimensions of 1.720" W x 0.050" H. Alternative parts from other manufacturers may require mechanical adaptation due to differing outer profiles. Verify that any replacement maintains the same material class (Material 28 equivalent) to ensure comparable frequency response characteristics.