2631803802

Overview

The Fair-Rite 2631803802 is a solid round cable EMI suppression core manufactured from Material 31. It provides a guaranteed minimum impedance of 119 ohms at a test frequency of 100 MHz, operating within a frequency range of 1 MHz to 300 MHz. The component features an inner diameter of 35.56 mm (1.400 inches), an outer diameter of 60.96 mm (2.400 inches), and an external length of 12.70 mm (0.500 inches). Designed for free-hanging installation, it effectively suppresses electromagnetic interference on cables passing through its center.

Feature Summary

• Utilizes Fair-Rite Material 31 ferrite composition for effective high-frequency noise attenuation
• Solid cylindrical design ensures consistent magnetic properties along the entire length
• Guaranteed minimum impedance specification validates performance reliability
• Free-hanging configuration allows flexible mounting without mechanical constraints

Applications

• Suppression of common-mode noise on power cables in industrial equipment
• EMI filtering for data transmission lines in telecommunications infrastructure
• Noise reduction on control wiring within automotive electronic systems
• Interference mitigation on audio/video signal cables in consumer electronics

Procurement Notes

Verify the specific Material 31 designation and impedance tolerance directly with the manufacturer or authorized distributors before procurement. Confirm that the physical dimensions align with the target cable diameter to ensure proper fit. Check RoHS compliance status if required by your assembly standards. Request official datasheets to validate the 119-ohm minimum impedance guarantee at 100 MHz for your specific application requirements.

Selection Notes

Select this component when dealing with cables approximately 35.56 mm in diameter requiring significant high-frequency noise suppression. Material 31 is optimal for frequencies between 1 MHz and 300 MHz, making it suitable for digital switching noise and radio frequency interference. Ensure the application environment does not exceed the thermal limits of ferrite materials. Compare against other 26-series cores if different impedance levels or physical sizes are needed for alternative cable diameters.

Part Context

This part belongs to Fair-Rite's 26-series Round Cable Cores, a line of solid ferrite beads designed for EMI suppression. These components are widely used in passive filtering applications where space constraints prevent the use of larger chokes. The 2631803802 specifically addresses needs for larger diameter cables, offering a robust solution for industrial and commercial electromagnetic compatibility challenges without requiring complex assembly procedures.

Replacement Considerations

Direct substitutes include other Fair-Rite 26-series cores with similar inner diameters but different impedance values, such as those using Material 43 or 61 if frequency characteristics differ. Cross-manufacturer equivalents should match the 35.56 mm ID and 12.7 mm length while verifying Material 31 compatibility for identical impedance profiles.