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Specifications
Impedance:
50Ω
Insertion Loss:
2dB
Type of Filter:
Bandpass Filter
Bandwidth:
1850MHz~2040MHz
Frequency - Center:
1.945GHz
Mfr. Part #:
BFCN-1945+
Package:
SMD3216-4P
Key Attributes
Model Number:
BFCN-1945+
Product Description
Product Overview
The BFCN-1945+ is an LTCC Band Pass Filter constructed with 12 layers, offering miniature size and high repeatability of performance. It covers the frequency range of 1945 MHz 95 MHz, providing low insertion loss and good rejection. Wrap-around terminations minimize performance variations due to parasitics.
Product Features
- Small Size (3.20mm x 1.6 mm) for high layout density and minimized parasitics.
- Rejection peaks at harmonic frequencies for improved system performance.
- Wrap-around termination for excellent solderability and easy visual inspection.
- LTCC construction provides a rugged package suitable for tough environments.
Product Attributes
- Brand: Mini-Circuits
- Origin: USA (implied by address)
- Material: LTCC (Low Temperature Co-fired Ceramic)
- Certifications: +RoHS Compliant
Technical Specifications
| Parameter | Frequency (MHz) | Min. | Typ. | Max. | Unit | Notes |
|---|---|---|---|---|---|---|
| Pass Band Center Frequency | 1945 | MHz | ||||
| Insertion Loss | 1850-2040 | 2.0 | 3.0 | dB | Measured on Mini-Circuits Characterization Test Board TB-270. | |
| VSWR | 1850-2040 | 2.5 | :1 | |||
| Stop Band, Lower Insertion Loss | DC-1500 | 20 | dB | |||
| Stop Band, Lower VSWR | DC-1500 | 25 | :1 | |||
| Stop Band, Upper Insertion Loss | 3600-5700 | 25 | dB | |||
| Stop Band, Upper VSWR | 3600-5700 | 20 | :1 | |||
| Operating Temperature | -55 to 100 | C | ||||
| Storage Temperature | -55 to 100 | C | ||||
| RF Power Input | 25C | 1.5 | W max. | *Passband rating, derate linearly to 0.25W at 100C ambient. Permanent damage may occur if any of these limits are exceeded. |
Applications
- Harmonic Rejection
- Transmitters / Receivers
Outline Dimensions
| A | B | C | D | E | F | G | H | J | K | L | M | N | P | wt |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| .126 | .063 | .037 | .020 | .032 | .009 | .169 | .087 | .024 | .122 | .024 | .087 | .012 | .071 | grams |
| 3.20 | 1.60 | 0.94 | 0.51 | 0.81 | 0.23 | 4.29 | 2.21 | 0.61 | 3.10 | 0.61 | 2.21 | 0.30 | 1.80 |
PCB Land Pattern Suggested Layout, Tolerance to be within .002
Pin Connections
| RF IN | GROUND | RF OUT |
|---|---|---|
| 1 | 2,4 | 3 |
Product Marking
32
Available Tape and Reel
| Reel Size | Devices/Reel |
|---|---|
| 7 | 20, 50, 100, 200, 500, 1000, 3000 |
Demo Board MCL P/N: TB-270
Suggested PCB Layout (PL-137)
2410311338_Mini-Circuits-BFCN-1945-_C4989635.pdf
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