ZLFW-K143+

Overview

The ZLFW-K143+ is a coaxial low-pass filter manufactured by Mini-Circuits, designed for radio frequency signal conditioning. It features a bandwidth extending from DC to 14 GHz (14000 MHz) with a cutoff frequency of 16 GHz. The component operates at a standard impedance of 50 ohms and utilizes LTCC technology within a broadband connectorized package. It is equipped with 2.92mm connectors and provides good matching within the passband, offering an insertion loss of approximately 3.1 dB.

Feature Summary

• Constructs a low-pass filter using Low Temperature Co-fired Ceramic (LTCC) technology for stable RF performance.
• Integrates 2.92mm connectors to ensure reliable broadband connectivity in high-frequency applications.
• Provides effective signal attenuation above the 14 GHz passband while maintaining impedance matching.

Applications

• RF signal conditioning in microwave systems
• Harmonic suppression in upconverter assemblies
• Test and measurement equipment filtering

Procurement Notes

Verify the specific datasheet version when ordering, as Mini-Circuits may update electrical specifications or mechanical drawings over time. Confirm that the 2.92mm termination style matches your system interface requirements. Ensure compliance with RoHS and REACH regulations if required by your procurement policy. Cross-reference the part number suffix to confirm it denotes the standard commercial grade variant without special modifications.

Selection Notes

Select this component when a sharp cutoff near 14 GHz is required with minimal passband ripple. The 50-ohm impedance rating makes it suitable for standard RF infrastructure. Consider the physical size of the connectorized package during layout planning. This filter is appropriate for applications requiring broadband performance up to 16 GHz cutoff without significant insertion loss in the lower frequency range.

Part Context

The ZLFW series represents Mini-Circuits' line of coaxial LTCC low-pass filters. These components are engineered for high reliability and consistent performance across wide bandwidths. The series typically offers various cutoff frequencies to suit different RF design needs, utilizing advanced ceramic materials to achieve compact form factors and robust thermal stability.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Users should consult Mini-Circuits directly for equivalent alternatives with similar cutoff frequencies and connector types.

FAQ

What is the cutoff frequency of the ZLFW-K143+?

The cutoff frequency is specified as 16 GHz.

What type of connectors does this filter use?

It uses 2.92mm SMA female connectors.