Overview
The LFCN-1200+ is a low pass filter designed and manufactured by Mini-Circuits. This component is engineered to operate from DC to 1200 MHz, making it suitable for a variety of applications requiring signal filtering in the VHF and UHF frequency ranges. The filter is constructed using Low Temperature Co-fired Ceramic (LTCC) technology, ensuring excellent power handling and temperature stability. It is also RoHS compliant, marked with a '+' suffix to indicate this compliance.
Key Specifications
| Parameter | Frequency (MHz) | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Passband Insertion Loss | DC - 1200 | 1.0 | dB | ||
| Frequency Cut-Off (F2) | 1530 | 3.0 | dB | ||
| VSWR (DC - F1) | DC - 1200 | 1.2 | :1 | ||
| Stop Band Rejection Loss (F3) | 1865 | 20 | dB | ||
| Stop Band Rejection Loss (F4-F5) | 2000 - 5000 | 30 | dB | ||
| Stop Band Rejection Loss (F6) | 6200 | 20 | dB | ||
| Operating Temperature | -55°C | 100°C | |||
| Storage Temperature | -55°C | 100°C | |||
| RF Power Input | 10 W | at 25°C |
Key Features
- Excellent power handling up to 10 W at 25°C
- Small size with a case style of FV1206
- 7-section filter design for improved performance
- Temperature stable due to LTCC construction
- Protected by U.S. Patent 6,943,646
- RoHS compliant
Applications
- Harmonic rejection in various RF systems
- VHF/UHF transmitters and receivers
- Lab use for signal filtering and testing
Q & A
- What is the frequency range of the LFCN-1200+ low pass filter? The LFCN-1200+ operates from DC to 1200 MHz.
- What is the typical insertion loss in the passband? The typical insertion loss in the passband is 1.0 dB.
- What is the maximum RF power input for this filter? The maximum RF power input is 10 W at 25°C.
- Is the LFCN-1200+ RoHS compliant? Yes, the LFCN-1200+ is RoHS compliant, indicated by the '+' suffix.
- What is the operating temperature range for this filter? The operating temperature range is -55°C to 100°C.
- What type of construction is used for this filter? The filter is constructed using Low Temperature Co-fired Ceramic (LTCC) technology.
- What are some common applications for the LFCN-1200+? Common applications include harmonic rejection, VHF/UHF transmitters and receivers, and lab use.
- How many sections does the filter have? The filter has a 7-section design.
- Is DC isolation to ground required for this filter? In applications where DC isolation to ground is required, coupling capacitors are recommended to avoid DC leakage.
- What is the VSWR in the passband? The VSWR in the passband is typically 1.2:1.
