LFCN-190+

Overview

The LFCN-190+ is an LTCC low-pass filter manufactured by Mini-Circuits, designed for surface-mount applications. It operates from DC to 190 MHz with a nominal impedance of 50 Ohms. The component features a compact 4-SMD, no-lead package and exhibits an insertion loss of approximately 1 dB. It supports board mounting and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Utilizes Low-Temperature Co-fired Ceramic (LTCC) technology for robust construction
• Provides effective signal filtering in the DC to 190 MHz frequency range
• Designed for direct surface-mount integration onto printed circuit boards

Applications

• RF signal conditioning circuits
• Harmonic suppression in transmission lines
• Interstage filtering in RF modules

Procurement Notes

Verify the specific datasheet version and electrical characteristics directly with Mini-Circuits or authorized distributors before procurement. Confirm that the 4-SMD package dimensions align with your PCB footprint requirements. Ensure environmental ratings meet the operational temperature constraints of your specific application environment.

Selection Notes

Select this component when a low-profile, surface-mount solution is required for frequencies up to 190 MHz. Consider the LTCC construction for stability and the 50 Ohm impedance match for standard RF systems. Evaluate the insertion loss specifications against system sensitivity requirements during the design phase.

Part Context

This part belongs to the Mini-Circuits family of LTCC filters, which are engineered for high performance in compact form factors. These components are widely used in RF and microwave applications where space constraints and signal integrity are critical design parameters.

Replacement Considerations

Consult official Mini-Circuits documentation for verified substitute part numbers. Cross-referencing should be performed based on identical cutoff frequencies, impedance values, and package compatibility to ensure functional equivalence.