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Specifications
Cut-Off Frequency:
1.8GHz
Impedance:
50Ω
Insertion Loss:
1.1dB
Type of Filter:
Low-pass Filter
Mfr. Part #:
LFCG-1800+
Package:
SMD-8P,2x1.2mm
Key Attributes
Model Number:
LFCG-1800+
Product Description
Product Overview
Mini-Circuits LFCG-1800+ is an LTCC low pass filter designed for applications requiring a passband from DC to 1800 MHz. It offers excellent stopband rejection of 50 dB typical, low insertion loss of 1.1 dB typical, and robust power handling up to 5.5W. Its compact 0805 ceramic form factor makes it ideal for dense PCB layouts, providing stable performance across a wide operating temperature range of -55 to +125C.
Product Attributes
- Brand: Mini-Circuits
- Construction: LTCC Ceramic
- Certifications: +RoHS Compliant
- Size: 0.079" x 0.049" x 0.037" (0805)
- Origin: USA (implied by address and company name)
Technical Specifications
| Model | Type | Frequency Range | Impedance | Insertion Loss (Typ.) | Rejection (Typ.) | Power Handling (Max.) | Operating Temperature | Case Style |
|---|---|---|---|---|---|---|---|---|
| LFCG-1800+ | Low Pass Filter | DC to 1800 MHz | 50 | 1.1 dB (Passband) | 50 dB (Stopband) | 5.5W (@25C) | -55C to 125C | GE0805C-2 |
Key Features & Advantages
- Ultra-wide stopband rejection up to 10 GHz
- Rugged LTCC construction for harsh environments
- Tiny 0805 size (2.0 mm x 1.25 mm) for space-saving designs
- Excellent power handling capability
- Temperature stable performance
- Wrap-around terminations for superior solderability
Applications
- Harmonic Rejection
- VHF/UHF transmitters / receivers
- Military radar applications
- Test and measurement
- Telecommunications & broadband wireless applications
Electrical Specifications
| Parameter | Frequency (MHz) | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Pass Band Insertion Loss | DC-1800 | 1.1 | 2.2 | dB | |
| Freq. Cut-Off | 2030 | 3.0 | dB | ||
| Return Loss | DC-1800 | 21 | dB | ||
| Stop Band Rejection Loss | 2450-2900 | 20 | 40 | dB | |
| 2900-7000 | 35 | 47 | dB | ||
| 7000-10000 | 35 | dB |
Maximum Ratings
| Rating | Value |
|---|---|
| Operating Temperature | -55C to 125C |
| Storage Temperature | -55C to 125C |
| RF Power Input | 5.5W max.@25C (Passband rating, derate linearly to 1W at 125C ambient) |
2506301329_Mini-Circuits-LFCG-1800-_C4989717.pdf
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