FA28B1240

Overview

The FA28B1240 is a hinged flat cable ferrite clamp manufactured by LeaderTech Inc. It features a core material designated as type 28, providing an impedance of 250 Ohms at 100 MHz. The component includes integrated adhesive for mounting. Its internal dimensions are 25.9 mm in length and 1 mm in height, while the external dimensions measure 45.5 mm in length, 28.6 mm in width, and 13.2 mm in height. The unit weighs 68.350 g and is supplied in bulk packaging.

Feature Summary

• Hinged snap-on design allows for easy installation onto existing flat ribbon cables without disconnection.
• Integrated adhesive backing provides secure attachment to surfaces or cable assemblies.
• Type 28 ferrite material composition offers specific high-frequency noise suppression characteristics.

Applications

• Suppression of electromagnetic interference on flat ribbon cables in electronic devices
• EMI filtering for data transmission lines in computer peripherals
• Noise reduction in internal wiring harnesses of consumer electronics

Procurement Notes

Verify the specific adhesive configuration and core material grade against project requirements before ordering. Confirm that the hinged mechanical design accommodates the target cable thickness and width constraints. Ensure compliance with relevant environmental regulations such as RoHS standards applicable to your region. Cross-reference the manufacturer part number with distributor listings to confirm current availability and lead times.

Selection Notes

Select this component when a permanent, non-removable EMI solution is required for flat cables. The integrated adhesive distinguishes it from standard snap-on cores like the FC28B1240 variant. Consider the physical envelope size to ensure fit within the device chassis. The 250 Ohm impedance at 100 MHz should match the frequency spectrum of the noise being suppressed.

Part Context

This part belongs to LeaderTech's line of ferrite clamp-on cores designed for flat cable applications. It is distinct from cylindrical or split-core variants intended for round wires. The product falls under the broader category of passive EMI suppression components used to mitigate common mode noise in high-speed digital circuits.

Replacement Considerations

The FC28B1240 serves as a direct mechanical substitute but lacks the integrated adhesive feature. Verify if the absence of adhesive impacts the stability of the assembly in the final application environment.

FAQ

What is the impedance value of the FA28B1240 at 100 MHz?

The impedance is 250 Ohms at 100 MHz.

Does the FA28B1240 include adhesive?

Yes, the FA28B1240 model includes integrated adhesive for mounting purposes.

What is the internal height of the ferrite core?

The internal height is 1 mm.