Product Overview
Mini-Circuits LFCW-1142+ is a Low Temperature Co-fired Ceramic (LTCC) low pass filter, designed in a very small, 0603 package. The multilayer construction provides high repeatability of performance. Small, wrap-around terminations minimize variations in performance due to parasitics. Covering DC 11.4 GHz, these units offer low insertion loss, good rejection, and excellent power handling capability. The small size allows for high layout density of circuit boards while minimizing the effects of parasitics. Wrap-around terminations provide excellent solderability and easy visual inspection. The LTCC construction results in a rugged package, well-suited for tough environments including high humidity and high temperature extremes.
Product Attributes
- Brand: Mini-Circuits
- Material: Low Temperature Co-fired Ceramic (LTCC)
- Certifications: +RoHS Compliant
- Origin: USA (implied by address)
Technical Specifications
| Model | Type | Frequency Range | Insertion Loss (Typ.) | Stop Band Rejection (Typ.) | Power Handling (Typ.) | Package | Case Style |
| LFCW-1142+ | Low Pass Filter | DC to 11.4 GHz | 2.2 dB | 20 dB from 12.7 to 16.8 GHz | 6.3W | 0603 (1.6 x 0.8 mm) | JC0603C-1 |
| Parameter | Frequency (GHz) | Min. | Typ. | Max. | Unit |
| Pass Band Insertion Loss | DC - 11.4 | 2.6 | dB | ||
| Freq. cut-off | 11.7 | 3.0 | dB | ||
| VSWR | DC - 11.4 | 1.85 | :1 | ||
| Stop Band Rejection Loss | 12.7 | 20 | dB | ||
| Stop Band Rejection Loss | 12.86 - 13.86 | 23 | 28.5 | dB | |
| Stop Band Rejection Loss | 16.8 | 20 | dB |
| Maximum Ratings | Value | Unit |
| Operating Temperature | -55 to 100 | C |
| Storage Temperature | -55 to 100 | C |
| RF Power Input | 6.3 | W at 25C |
Applications
- Harmonic Rejection
- VHF/UHF transmitters / receivers
- Lab use
Typical Performance Data (at 25C)
| Frequency (GHz) | Insertion Loss (dB) | VSWR (:1) |
| 0.01 | 0.02 | 1.02 |
| 1.02 | 0.50 | 0.13 |
| 1.06 | 1.00 | 0.17 |
| 1.12 | 3.00 | 0.33 |
| 1.30 | 5.00 | 0.39 |
| 1.23 | 7.00 | 0.44 |
| 1.09 | 9.00 | 0.66 |
| 1.15 | 10.00 | 0.95 |
| 1.34 | 11.40 | 1.90 |
| 1.49 | 11.70 | 2.49 |
| 1.57 | 12.70 | 25.16 |
| 8.57 | 12.86 | 36.87 |
| 10.65 | 13.86 | 42.42 |
| 21.84 | 15.21 | 35.60 |
| 36.45 | 16.80 | 23.97 |
| 38.76 | 18.00 | 19.40 |
| 34.10 | 20.00 | 15.10 |
| 27.70 |
2411041612_Mini-Circuits-LFCW-1142-_C4980550.pdf
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