LFCG-575+

Overview

The Mini-Circuits LFCG-575+ is a miniature low-pass filter utilizing Low Temperature Co-fired Ceramic (LTCC) technology. It features a DC to 575 MHz passband and a 50Ω impedance. The component is housed in an 0805 surface-mount package with an 8-pad configuration, measuring 2.00mm x 1.25mm x 0.90mm. Key electrical specifications include a maximum insertion loss of 1.9 dB within the passband and a minimum stopband attenuation of 40 dB at frequencies above 1 GHz.

Feature Summary

• Utilizes robust LTCC construction for reliable RF filtering performance
• Provides effective harmonic rejection and signal conditioning
• Designed for compact surface-mount integration

Applications

• Harmonic rejection in RF circuits
• Automatic meter reading systems
• VHF/UHF transmitter and receiver stages

Procurement Notes

Verify the specific datasheet revision and testing conditions associated with the ordered lot. Confirm that the 0805 footprint dimensions and pad layout match the target PCB design requirements. Ensure compatibility with standard reflow soldering profiles for LTCC components to maintain electrical integrity and mechanical stability during assembly.

Selection Notes

Select this component when a compact, cost-effective low-pass filter is required for applications up to 575 MHz. The LTCC construction offers a balance between performance and size, suitable for space-constrained designs. Consider the 1.9 dB insertion loss specification when evaluating system gain budgets and ensure the 50Ω impedance matches the surrounding circuitry to minimize reflections.

Part Context

This part belongs to the Mini-Circuits LFCG series of LTCC low-pass filters. These components are designed for general-purpose RF filtering tasks where small form factors are critical. The series typically covers various frequency ranges, with the LFCG-575+ specifically targeting sub-GHz applications requiring moderate attenuation beyond the cutoff frequency.

Replacement Considerations

Direct substitutes may include other Mini-Circuits LTCC low-pass filters with similar cutoff frequencies, such as the VLFG-575+ for ruggedized unibody applications. Verify pinout compatibility and electrical specifications before substituting with components from other manufacturers.