LFCN-1700D+

Overview

The LFCN-1700D+ is a ceramic low-pass filter manufactured by Mini-Circuits. It features a cutoff frequency of 2.05 GHz and operates at a 50 Ohm impedance. The device provides an insertion loss of 1 dB and utilizes LTCC construction for temperature stability. It is housed in a compact 4-SMD, no lead package with dimensions corresponding to the FV1206 case style. The component supports excellent power handling up to 10W and offers good stopband rejection across its operational range.

Feature Summary

• LTCC construction ensures temperature stability
• High power handling capability of 10W
• Compact surface-mount design

Applications

• RF signal filtering
• IF stage filtering
• Microwave circuit development

Procurement Notes

Verify the manufacturer designation carefully as the part number appears associated with both Mini-Circuits and X-Microwave in distributor listings. Confirm the specific datasheet version and electrical specifications match your design requirements before procurement. Ensure compatibility with your PCB footprint and assembly processes.

Selection Notes

Select this component when a low-pass filter with a 2.05 GHz cutoff is required. Consider the 50 Ohm impedance matching for system integration. Evaluate the 10W power handling against your application's signal levels. The SMD package size should fit within your board layout constraints.

Part Context

This component belongs to the LFCN series of ceramic low-pass filters from Mini-Circuits. These filters are designed for RF and IF applications, offering a balance of performance and size. The series typically covers various cutoff frequencies while maintaining consistent impedance and construction methods.

Replacement Considerations

Check for direct substitutes within the LFCN series with different cutoff frequencies if the 2.05 GHz specification does not meet your needs. Verify pinout and footprint compatibility with alternative manufacturers' offerings.