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SpaceNXT Series: Elevating Space Connectivity with Pre-Tested & Qualified Interconnects


In the vast expanse of space, reliability is paramount. Whether it's sending satellites into orbit, exploring distant planets, or conducting groundbreaking experiments aboard the International Space Station, every component used in space applications must withstand the harshest conditions and function flawlessly. Smiths Interconnect recognizes the critical importance of connectivity in the realm of space technology and is proud to present the SpaceNXT™ Range - a groundbreaking initiative that offers pre-tested and qualified interconnect solutions for the next generation of space applications. In this blog, we'll take a closer look at the SpaceNXT Series and how it is set to revolutionize the way we connect and communicate in space.

SpaceNXT™ HC Series: Temperature Variable Attenuators

To navigate the extremes of space, we need components that can handle temperature variations and provide precision performance. The SpaceNXT™ HC Series offers just that:

  • Frequency Range: Up to 18 GHz, with attenuation values from 0 dB to 20 dB.
  • Design Flexibility: These attenuators offer a small footprint and solderable surface mount, allowing for versatile integration.
  • Wide Attenuation and TCA Shifts: With a wide range of attenuation and temperature coefficient of attenuation (TCA) shifts available, these attenuators adapt to various applications.
  • High Volume Solution: SpaceNXT™ HC Series is designed for high-volume production, ensuring reliable and cost-effective solutions.

SpaceNXT™ K2TVA Thermopad® Series: Temperature Variable Attenuators for Ku-Band

For Ku-Band applications that require exceptional performance and reliability, the SpaceNXT™ K2TVA Thermopad® Series is the ideal choice:

  • Frequency Range: Rated for 17-22 GHz and 27-32 GHz.
  • Robust Technology: Using a thick film process technology on an alumina substrate, this series offers up to four times the temperature coefficient of attenuation over the original KTVA series.
  • Mounting Flexibility: Various mounting configurations are available to suit your specific needs.

SpaceNXT™ MWC Series: Ku-Band Multiway Isolated Splitter

The SpaceNXT™ MWC Series is engineered for efficient signal distribution in Ku-Band applications:

  • Frequency Range: Operating from 10.7 to 12.8 GHz.
  • Versatile Functionality: This isolated splitter comes in an EMC shielded, RoHS stackable housing and can be factory-configured to operate as either a combiner or a splitter.
  • Low Insertion Loss: The MWC Series offers minimal signal loss, ensuring efficient power distribution.

SpaceNXT™ Ku Series: High Power Waveguide Circulators & Loads

When power and signal integrity are non-negotiable, the SpaceNXT™ Ku Series delivers:

  • Guaranteed Performance: These circulators are designed for low and stable insertion loss under maximum power, providing unmatched reliability.
  • Unconditional Linearity: Tested to 350 Watts CW Power, these circulators are unconditionally linear.
  • EMC Compliance: SpaceNXT™ Ku Series circulators meet EMC specifications to -80 dBi, ensuring minimal interference.

SpaceNXT™ Aurora Series: ESA Qualified Backplane Connector

For critical interconnections in space systems, the SpaceNXT™ Aurora Series offers the ultimate in reliability:

  • ESA Qualified: These connectors are qualified to ESA ESCC 3401 specifications, assuring compatibility with the highest standards in space technology.
  • Multiple Configurations: Available in 55, 110, and 125 contact sizes, as well as right angle and mezzanine configurations.
  • Enhanced Durability: Enhanced gold plating with 1.27µm (50 µin) increases Mean Time Between Failures (MTBF).

SpaceNXT™ QT Series: Coaxial Cable Assemblies

In the vastness of space, signal transmission is crucial. The SpaceNXT™ QT Series ensures seamless connectivity:

  • High-Performance: With mode-free performance up to 50 GHz, these cable assemblies guarantee uncompromised signal quality.
  • Stability: Thanks to phase-stable fluoropolymer dielectric, electrical length changes are minimized over a wide temperature range.
  • Exceptional Shielding: With >-90dB shielding effectiveness, these cable assemblies meet NASA/ESA outgassing specifications.


Smiths Interconnect's SpaceNXT™ Range is ushering in a new era of space connectivity, where pre-tested and qualified interconnects provide reliability, performance, and peace of mind. With a comprehensive range of interconnect solutions, space missions and applications can now benefit from the best in connectivity technology. By offering products that are ready for space use, Smiths Interconnect is reducing lead times, streamlining the integration process, and enabling groundbreaking achievements in the cosmos. As space exploration and communication continue to advance, the SpaceNXT™ Range stands ready to support the future of space technology.

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