Overview
The LFCN-490D+ is a low pass filter designed and manufactured by Mini-Circuits. This component is part of Mini-Circuits' extensive range of ceramic filters, known for their high reliability and performance in various frequency ranges. The LFCN-490D+ is specifically tailored for applications requiring a cutoff frequency of 490 MHz, making it suitable for a wide range of RF and microwave systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Cutoff Frequency (fco) | 490 | MHz |
| Passband Frequency Range | DC - 490 | MHz |
| Stop Band Frequency Range | 880 - 2500 | MHz |
| Insertion Loss in Passband | 1.2 | dB |
| Insertion Loss in Stop Band | > 40 dB | |
| VSWR (Voltage Standing Wave Ratio) | 1.2 : 1 | |
| Power Input | 20 | W |
| DC Resistance to Ground | 100 Mohms min. |
Key Features
- High Reliability: The LFCN-490D+ is built with high-reliability materials and construction, making it suitable for demanding applications.
- Low Insertion Loss: The filter offers a low insertion loss of 1.2 dB in the passband, ensuring minimal signal attenuation.
- High Isolation: It provides high isolation in the stop band, with an insertion loss greater than 40 dB.
- Compact Design: The component is designed to be compact, making it ideal for space-constrained applications.
- Wide Operating Temperature Range: The filter can operate effectively across a wide temperature range, enhancing its versatility.
Applications
- RF and Microwave Systems: The LFCN-490D+ is suitable for various RF and microwave systems requiring precise frequency filtering.
- Communication Equipment: It can be used in communication equipment such as radios, transceivers, and base stations.
- Test and Measurement Instruments: The filter is useful in test and measurement instruments where precise frequency filtering is necessary.
- Aerospace and Defense: Due to its high reliability and performance, it is also used in aerospace and defense applications.
Q & A
- What is the cutoff frequency of the LFCN-490D+?
The cutoff frequency (fco) of the LFCN-490D+ is 490 MHz.
- What is the passband frequency range of the LFCN-490D+?
The passband frequency range is from DC to 490 MHz.
- What is the stop band frequency range of the LFCN-490D+?
The stop band frequency range is from 880 MHz to 2500 MHz.
- What is the typical insertion loss in the passband?
The typical insertion loss in the passband is 1.2 dB.
- What is the typical VSWR of the LFCN-490D+?
The typical VSWR is 1.2 : 1.
- What is the maximum power input for the LFCN-490D+?
The maximum power input is 20 W.
- What is the DC resistance to ground for the LFCN-490D+?
The DC resistance to ground is 100 Mohms minimum.
- In what types of applications is the LFCN-490D+ commonly used?
The LFCN-490D+ is commonly used in RF and microwave systems, communication equipment, test and measurement instruments, and aerospace and defense applications.
- Why is the LFCN-490D+ considered reliable?
The LFCN-490D+ is considered reliable due to its high-quality materials and construction, which ensure stable performance across various operating conditions.
- Where can I find more detailed specifications for the LFCN-490D+?
More detailed specifications can be found in the datasheet available on Mini-Circuits' official website or through authorized distributors like JLCPCB.
