28R1240-010

Overview

The Laird-Signal Integrity Products 28R1240-010 is a solid free-hanging ferrite core designed for EMI suppression on cable assemblies. It exhibits an impedance of 211 Ohms at 100 MHz. The component features a rectangular geometry with an inner dimension of 0.906 inches wide by 0.039 inches high (23.00mm x 1.00mm) and an outer dimension of 1.236 inches wide by 0.305 inches high.

Feature Summary

• Provides effective common mode EMI reduction for flat or ribbon type cable assemblies
• Solid free-hanging design allows for easy installation onto existing cables without disconnection

Applications

• Suppression of electromagnetic interference on flat cable assemblies
• Noise filtering on ribbon type cable connections
• Common mode noise reduction in signal transmission lines

Procurement Notes

Verify the specific impedance requirement of 211 Ohms at 100 MHz against your circuit's noise spectrum to ensure adequate attenuation. Confirm that the physical dimensions, particularly the inner width of 0.906 inches, accommodate the target cable thickness. Check RoHS compliance status if required by your manufacturing standards, as this may vary by production batch.

Selection Notes

Select this component when dealing with flat or ribbon cables requiring external EMI suppression. Ensure the cable fits within the 0.906-inch inner width. Consider the 211 Ohm impedance value for the frequency range of interest. This solid core design is suitable for applications where permanent attachment to the cable is acceptable and space constraints allow for the specified outer dimensions.

Part Context

This ferrite core belongs to Laird-Signal Integrity Products' line of rectangular EMI suppression components. These cores are engineered to provide cost-effective noise reduction solutions for various cable types. The 28 series designation indicates the material composition optimized for specific frequency ranges, ensuring reliable performance in suppressing high-frequency interference.

Replacement Considerations

No public confirmed substitute part numbers are available for this specific model.