LFCN-123+

Overview

The LFCN-123+ is a low-pass ceramic filter manufactured by Mini-Circuits, designed for microwave communication systems. It operates with a cutoff frequency of 12 GHz and supports a passband from DC to 12000 MHz. The component features a 50 Ohm impedance and utilizes an LTCC construction within an FV1206-4 surface-mount package. Key electrical specifications include a maximum insertion loss of 0.07 dB in the passband and high attenuation characteristics above the cutoff frequency, enabling effective rejection of unwanted harmonics.

Feature Summary

• Provides effective rejection of unwanted harmonics in microwave communication systems
• Utilizes LTCC construction for reliable surface-mount integration
• Maintains 50 Ohm impedance for standard RF system compatibility

Applications

• Microwave communication systems
• Harmonic suppression circuits
• RF signal conditioning

Procurement Notes

Verify the specific datasheet version and parameter tolerances directly from Mini-Circuits before finalizing design integration. Confirm that the FV1206-4 package dimensions align with your PCB layout requirements. Ensure the operating environment matches the component's specified temperature range and power handling capabilities as defined in the official documentation.

Selection Notes

Select this component when a sharp cutoff at 12 GHz is required for harmonic filtering in 50 Ohm systems. The low insertion loss makes it suitable for sensitive RF chains where signal integrity is critical. Consider the surface-mount form factor for automated assembly processes and compact board designs requiring minimal footprint.

Part Context

This part belongs to Mini-Circuits' LFCN series of low-pass filters, which are engineered for high-performance RF applications. The series offers various cutoff frequencies to suit different bandwidth requirements while maintaining consistent impedance and package styles across the product line for design flexibility.

Replacement Considerations

Consult Mini-Circuits documentation for direct substitutes or alternative cutoff frequencies within the LFCN series. Verify pinout compatibility and thermal characteristics if replacing with components from other manufacturers.