28R1127-200

Overview

The Laird-Signal Integrity Products 28R1127-200 is a solid, free-hanging ferrite core designed for cable EMI suppression. It utilizes Material 28 to provide an impedance of 191 Ohms at 100 MHz. The component features a flat rectangular geometry with an inner dimension of 0.925 inches wide by 0.067 inches high (23.50mm x 1.70mm). External dimensions measure 1.125 inches wide by 0.303 inches high. This part is currently active and suitable for wrapping around cables to attenuate high-frequency noise.

Feature Summary

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

Applications

• Suppression of electromagnetic interference on data cables
• Noise reduction in power supply lines
• EMI filtering for communication interface cables

Procurement Notes

Verify the specific impedance requirement of 191 Ohms at 100 MHz against your system's noise spectrum. Confirm that the inner slot dimensions of 23.50mm width and 1.70mm height accommodate the target cable diameter. Ensure compliance with RoHS3 standards if required by your manufacturing process. Check for any specific packaging requirements from the distributor.

Selection Notes

Select this component when a high-impedance solution is needed for larger gauge cables or multi-conductor bundles that fit within the 23.50mm width. The solid design offers higher performance than split cores but requires cable disconnection for installation. Consider the physical size constraints of the enclosure to ensure the 1.125-inch width fits available space.

Part Context

This ferrite core belongs to the 28 series from Laird-Signal Integrity Products, which focuses on signal integrity solutions. The '28' designation refers to the specific ferrite material composition, known for high permeability at higher frequencies. This product line is widely used in industrial and commercial electronics for passive EMI mitigation.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model in the provided documentation. Alternative solutions may require custom sizing or different material grades.