ZXLF-K551+

Overview

The ZXLF-K551+ is a reflectionless low-pass filter manufactured by Mini-Circuits, designed for RF and microwave applications. It operates from DC to 550 MHz with a 50-ohm impedance system. The component utilizes a 2.92mm connector interface for termination. This module provides a cutoff frequency of 770 MHz and maintains a bandwidth of 2.1 dB. It is engineered to suppress interference signals above 5800 MHz while passing useful signals within the passband.

Feature Summary

• Reflectionless architecture prevents signal reflections that can destabilize source components
• Integrated module design simplifies integration into RF test and measurement systems
• High-frequency suppression capability ensures clean signal integrity in sensitive environments

Applications

• Spectrum analyzer input protection and signal conditioning
• Signal generator output filtering
• Precision RF test equipment interconnects

Procurement Notes

Verify the specific datasheet version corresponding to the ZXLF-K551+ part number before procurement. Confirm that the 2.92mm connector type matches your system requirements. Ensure the operating environment remains within the specified electrical limits for optimal performance and longevity of the component.

Selection Notes

Select this component when reflectionless performance is critical to maintain source stability in high-frequency circuits. The 2.92mm interface suits precision test applications requiring robust mechanical connections. Consider the 770 MHz cutoff frequency against your specific spectral requirements to ensure adequate stopband attenuation for your application.

Part Context

Mini-Circuits specializes in RF, IF, and microwave components ranging from DC to 86 GHz. The ZXLF-K551+ belongs to their line of coaxial filters, which are widely used in telecommunications, aerospace, and industrial automation. This specific model addresses the need for stable filtering without reflected power issues common in traditional designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit layouts if considering alternative reflectionless filter models from other manufacturers.