LFB187102-000

Overview

The LFB187102-000 is a solid cylindrical ferrite cable core manufactured by Laird-Signal Integrity Products. It provides electromagnetic interference (EMI) suppression with an impedance of 84 Ohms at 5 MHz. The component features a free-hanging mounting type and measures 1.125 inches (28.58 mm) in length. It has an inner diameter of 0.400 inches (10.16 mm) and an outer diameter of 0.735 inches (18.67 mm). This part is designed for wrapping around cables to attenuate high-frequency noise.

Feature Summary

• Solid cylindrical construction for direct cable wrapping
• Provides 84 Ohm impedance at 5 MHz for low-frequency EMI filtering
• Free-hanging mounting style suitable for harness integration

Applications

• Cable harness EMI suppression
• Low-frequency noise attenuation on power or signal lines
• Electromagnetic compatibility enhancement in electronic assemblies

Procurement Notes

Verify the specific impedance frequency requirement, as this component is rated at 84 Ohms at 5 MHz, which differs from higher-frequency bead specifications. Confirm that the cable diameter fits within the 0.400-inch inner diameter. Check for RoHS compliance status if required by your assembly standards, as older Laird ferrite cores may vary in regulatory status compared to their chip bead counterparts.

Selection Notes

Select this component when low-frequency EMI suppression is required rather than high-frequency RF filtering. Ensure the physical dimensions accommodate the target cable bundle size. Compare against other LFB series parts if different impedance values or lengths are needed. Verify that the solid core design meets the mechanical strain requirements of the application environment.

Part Context

This part belongs to the LFB series of low-frequency EMI cylindrical ferrite cable cores from Laird-Signal Integrity Products. Unlike surface-mount ferrite beads used on PCBs, these cores are designed for external cable treatment. They serve as passive components to reduce conducted emissions without requiring soldering or PCB footprint space.

Replacement Considerations

Direct substitutes may include other Laird LFB series cores with similar impedance and dimensional profiles. Cross-manufacturer replacements require matching the 84 Ohm @ 5 MHz specification and the 10.16 mm inner diameter to ensure physical fitment.