BFHKI-3142+

Overview

The BFHKI-3142+ is a high-isolation, low-insertion-loss bandpass filter designed for the 3.1 to 4.2 GHz frequency range. It utilizes surface-mount technology in a compact SMT package suitable for automated assembly. The component provides significant attenuation outside the passband, ensuring effective interference rejection in RF signal chains.

Feature Summary

• High isolation performance across the specified frequency band
• Low insertion loss within the operational passband
• Compact surface-mount design for space-constrained applications

Applications

• Wireless communication systems requiring band selection
• RF front-end modules for interference mitigation
• Test and measurement equipment filtering

Procurement Notes

Verify the specific suffix code on the ordering information to ensure compatibility with your assembly requirements. Confirm that the datasheet specifications match your system's impedance and power handling needs before procurement.

Selection Notes

Select this component when high isolation is critical alongside minimal signal degradation in the 3.1-4.2 GHz range. Ensure the PCB layout supports the required thermal dissipation and impedance matching for optimal performance.

Part Context

This part belongs to Mini-Circuits' broad portfolio of RF filters. It serves as a specialized solution for UWB and wireless applications where precise frequency control and noise reduction are necessary for signal integrity.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pinout compatibility and electrical parameter overlaps before replacing existing components in production designs.