BFCN-7900+

Overview

The BFCN-7900+ is a surface-mount bandpass ceramic filter manufactured by Mini-Circuits. It operates with a center frequency of 7.9 GHz and features a bandwidth of 300 MHz. The component has an impedance of 50 Ohms and a maximum insertion loss of 3.5 dB. It utilizes Low Temperature Co-fired Ceramic (LTCC) technology in a 5-layer structure, housed in a compact 4-SMD, No Lead package measuring 3.20mm x 1.60mm x 1.04mm.

Feature Summary

• Constructed using Low Temperature Co-fired Ceramic (LTCC) technology for high performance and repeatability.
• Features a 5-layer internal structure designed to achieve a miniature physical footprint.
• Utilizes a wrap-around termination design to minimize parasitic effects and ensure stable performance.

Applications

• RF signal filtering in microwave communication systems
• Frequency selection in upconverter assemblies
• Signal conditioning in satellite communications equipment

Procurement Notes

Verify the specific ordering suffix when purchasing, as packaging options such as tape and reel may vary. Confirm that the component meets RoHS3 compliance requirements for your assembly process. Ensure the PCB footprint matches the 4-SMD No Lead dimensions provided in the datasheet to guarantee proper soldering and electrical connection during manufacturing.

Selection Notes

Select this component when a precise 7.9 GHz center frequency with a 300 MHz bandwidth is required. The 50 Ohm impedance rating ensures compatibility with standard RF transmission lines. Consider the LTCC construction for applications demanding reliable performance in compact spaces where minimizing parasitic effects through wrap-around terminations is critical for signal integrity.

Part Context

This part belongs to the BFCN family of SMT LTCC bandpass filters from Mini-Circuits. These components are engineered for high-frequency applications requiring small form factors. The family generally offers consistent electrical characteristics across various center frequencies, utilizing advanced ceramic substrate materials to maintain performance stability in demanding RF environments.

Replacement Considerations

Check for alternate qualified ceramic substrate materials if supply constraints exist. Verify that any substitute maintains the same 7.9 GHz center frequency, 300 MHz bandwidth, and 50 Ohm impedance to ensure circuit compatibility without redesign.