28R1259-400

Overview

The Laird-Signal Integrity Products 28R1259-400 is a solid ferrite core designed for cable and wiring applications. It belongs to the 28R series and utilizes Material 28 composition. The component provides an impedance of 192 Ohms at 100 MHz. Its physical dimensions include an inner diameter of 1.094 inches wide by 0.059 inches high (27.80mm x 1.50mm) and an outer diameter of 1.260 inches wide by 0.305 inches high (32.00mm x 7.75mm). The unit features a ribbed design with clamps, supports free-hanging installation, and complies with RoHS3 standards.

Feature Summary

• Solid construction with integrated ribbed design and clamps for secure cable retention
• Material 28 composition optimized for broadband noise suppression
• Free-hanging installation type suitable for direct cable mounting

Applications

• Cable and wiring EMI suppression
• Signal integrity enhancement in electronic assemblies
• Noise filtering for power and data lines

Procurement Notes

Verify the specific part number against official manufacturer documentation to confirm dimensional tolerances and material specifications. Ensure compatibility with existing cable diameters before integration. Confirm RoHS3 compliance status if required by project regulations. Cross-reference datasheets for accurate impedance characteristics at target frequencies.

Selection Notes

Select this component based on the required inner diameter to fit the target cable size. Consider the 192 Ohm impedance at 100 MHz for effective noise attenuation in the intended frequency range. The solid ribbed design with clamps offers mechanical stability compared to split cores. Verify that the free-hanging installation method aligns with the assembly constraints.

Part Context

This ferrite core is part of the 28R series from Laird-Signal Integrity Products, which focuses on signal integrity solutions. The series includes various sizes and impedance values tailored for different cable diameters and noise profiles. Material 28 is commonly used for general-purpose EMI suppression across a broad frequency spectrum.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.