LFCN-900D-1+

Overview

The LFCN-900D-1+ is a surface-mount low-pass filter from Mini-Circuits, designed for signal conditioning applications. It features a cutoff frequency of 1.075 GHz and operates within a frequency range of DC to 850 MHz. The component has a 50 Ohm impedance and utilizes an SMD/SMT termination type in a 1206 (3216 metric) package. It exhibits an insertion loss of 1.3 dB and functions reliably between -55 C and +100 C.

Feature Summary

• Surface mount construction for automated PCB assembly
• RoHS compliant manufacturing process
• High power handling capability

Applications

• RF signal conditioning circuits
• Microwave communication systems
• Test and measurement equipment

Procurement Notes

Verify the specific suffix (+ or -1+) against the design specification to ensure correct cutoff characteristics. Confirm the package footprint matches the 1206 standard. Check RoHS documentation if environmental compliance is mandatory. Ensure the operating temperature range aligns with the system environment requirements.

Selection Notes

Select this component when a sharp cutoff near 1.075 GHz is required in a compact form factor. The 50 Ohm impedance suits standard RF transmission lines. Consider the thermal limits (-55 C to +100 C) for harsh environments. Evaluate insertion loss impact on system noise figure.

Part Context

This part belongs to the LFCN series of ceramic filters by Mini-Circuits. These components are engineered for high performance in RF and IF applications. The series offers various cutoff frequencies while maintaining consistent physical dimensions and electrical characteristics suitable for modern electronic designs.

Replacement Considerations

Direct substitutes include other Mini-Circuits LFCN series variants with similar cutoff frequencies. Verify impedance and package compatibility before substitution. Cross-reference datasheets for insertion loss and rejection specifications.