BFCN-2840+

Overview

The BFCN-2840+ is a surface-mount LTCC bandpass filter manufactured by Mini-Circuits. It features a center frequency of 2.84 GHz and a bandwidth of 180 MHz. The component operates with a standard impedance of 50 Ohms. It utilizes a 4-SMD, No Lead package for compact integration. The device is designed to provide high repeatability of performance through its multi-layer construction.

Feature Summary

• Constructed using Low-Temperature Co-fired Ceramic (LTCC) technology for reliability
• Multi-layer design enables miniature physical size
• Surface mount configuration facilitates automated PCB assembly

Applications

• S-band upconverter systems
• RF signal filtering in communication infrastructure
• Receiver and transmitter front-end stages

Procurement Notes

Verify the specific datasheet version from Mini-Circuits or authorized distributors to confirm current electrical specifications and mechanical dimensions. Ensure the ordering suffix matches the required termination style. Cross-reference the part number against official manufacturer catalogs to avoid counterfeit components. Confirm RoHS compliance status if environmental regulations apply to your manufacturing process.

Selection Notes

Select this component when a fixed center frequency near 2.84 GHz is required for S-band applications. Consider the 180 MHz bandwidth relative to the signal spectrum requirements. Evaluate the 4-SMD footprint constraints against available PCB real estate. Compare insertion loss and rejection characteristics against system noise floor limits before finalizing the design.

Part Context

This component belongs to the Mini-Circuits LTCC filter family, which emphasizes miniaturization and performance consistency. These filters are commonly integrated into RF modules where space efficiency is critical. The series supports various frequency ranges tailored for modern wireless communication standards and radar applications.

Replacement Considerations

Consult Mini-Circuits official documentation for direct substitute part numbers within the same LTCC series. Verify that alternative components match the 2.84 GHz center frequency and 50 Ohm impedance. Ensure the replacement maintains the 4-SMD package outline for board compatibility.