BFCN-5151+

Overview

The BFCN-5151+ is a surface-mount LTCC bandpass filter with a center frequency of 5.151 GHz and a passband from 4120 MHz to 6440 MHz. It features a 50 Ohm impedance and operates in the SMT 1206 package (3.20mm x 1.60mm). The component provides significant stopband attenuation, achieving 24 dB at 3000 MHz and 32 dB at 8820 MHz.

Feature Summary

• Utilizes Low-Temperature Co-fired Ceramic (LTCC) technology for compact surface-mount integration
• Provides high stopband rejection to suppress out-of-band interference
• Designed for stable signal transmission within the specified microwave frequency range

Applications

• EMI/RFI suppression
• Signal filtering in wireless communication systems
• S-band upconverter assemblies

Procurement Notes

Verify the specific datasheet version when sourcing, as Mini-Circuits may update mechanical drawings or electrical specifications over time. Confirm that the 1206 footprint matches your PCB design constraints. Ensure the supplier provides original manufacturer documentation to validate the component's authenticity and performance characteristics against the official BFCN-5151+ standards.

Selection Notes

Select this component when a narrow bandpass response centered at 5.151 GHz is required in a small form factor. The LTCC construction offers thermal stability suitable for industrial environments. Consider the 50 Ohm system impedance compatibility with your RF chain. Evaluate the stopband attenuation requirements at 3000 MHz and 8820 MHz to ensure sufficient isolation for your specific application noise floor.

Part Context

This part belongs to Mini-Circuits' ceramic filter series, which utilizes LTCC technology to create robust, miniature RF components. These filters are designed for high-volume manufacturing and offer consistent performance across temperature variations. The BFCN-5151+ specifically targets applications requiring precise frequency selection in the 5 GHz range.

Replacement Considerations

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