Product Overview
The BFCN-5540+ is a LTCC bandpass filter designed for the 4620 to 6640 MHz frequency range. It offers a passband insertion loss of 1.2 dB, with 22 dB lower stopband rejection and 30 dB upper stopband rejection. This filter supports up to 1W of RF input power and operates reliably across a wide temperature range of -55 to +100C. Its LTCC construction ensures excellent performance repeatability and a compact 1206 ceramic package with wraparound terminations, minimizing parasitic effects and saving space in dense PCB layouts. Key advantages include its small size, temperature stability, and rugged construction suitable for demanding environments. Applications include harmonic rejection, transmitters/receivers, aviation, communications, and W-LAN.
Product Attributes
- Brand: Mini-Circuits (inferred from product marking and demo board P/N)
- Material: LTCC (Low Temperature Co-fired Ceramic)
- Color: Ceramic (implied by product type)
- Origin: Not specified
- Certifications: Not specified
Technical Specifications
| Parameter | F# | Frequency (MHz) | Min. | Typ. | Max. | Unit | Notes |
| Band Pass Center Frequency | 5540 | MHz | |||||
| Insertion Loss | F1-F2 | 4620-6640 | 1.2 | 4 | dB | ||
| VSWR | F1-F2 | 4620-6640 | 2.1 | :1 | |||
| Stop Band, Lower Insertion Loss | DC-F3 | DC-3470 | 17 | 22 | dB | ||
| Stop Band, Lower VSWR | DC-F3 | DC-3470 | 25 | :1 | |||
| Stop Band, Upper Insertion Loss | F4-F5 | 8060-8820 | 13 | 30 | dB | ||
| Stop Band, Upper Insertion Loss | F5-F6 | 8820-10990 | 17 | dB | |||
| Stop Band, Upper VSWR | F4-F6 | 8060-10990 | 25 | :1 | |||
| Operating Temperature | -55 to +100 | C | |||||
| Storage Temperature | -55 to +100 | C | |||||
| RF Power Input | 1 | W | at 25C, derate linearly to 0.25W at 100C ambient |
2410311338_Mini-Circuits-BFCN-5540-_C4990052.pdf
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