BFHK-1982+

Overview

The BFHK-1982+ is an LTCC band pass filter designed for RF applications. It operates within a frequency range of 17500 to 22200 MHz, with a center frequency of approximately 19.7 GHz to 19.85 GHz. The component features a bandwidth of roughly 4.5 GHz to 4.71 GHz and insertion loss between 4 dB and 4.5 dB. It is rated for 50 Ohm impedance and utilizes a 3-SMD, no-lead package (NM1812C-3) with dimensions of 4.95mm x 3.65mm x 1.96mm.

Feature Summary

• Utilizes proprietary Low-Temperature Co-fired Ceramic (LTCC) material system for high performance.
• Provides miniature size with high repeatability of performance characteristics.
• Designed for surface mount installation in compact RF circuits.

Applications

• EMI/RFI suppression
• Power line filtering
• Microwave signal conditioning

Procurement Notes

Verify the specific suffix (+ or I) when ordering, as packaging formats such as tape and reel or cut tape may vary by distributor. Confirm RoHS compliance status and moisture sensitivity level requirements against your assembly process specifications before finalizing procurement.

Selection Notes

Select this component for designs requiring a fixed band pass response in the K-band frequency range. Ensure the PCB layout accommodates the NM1812C-3 footprint and that the operating environment remains within the specified thermal limits for LTCC materials.

Part Context

This part belongs to the BFHK series from Mini-Circuits, which specializes in high-performance SMT bandpass filters. The series leverages LTCC technology to deliver consistent electrical performance in a small form factor suitable for modern microwave and RF systems.

Replacement Considerations

The BFHKI-1982+ is a documented variant of this component. Verify if the specific packaging or minor parameter tolerances of the 'I' suffix variant meet your design requirements before substituting.