SpaceSplice Wire Connecting Solution

Innovative Wire Connecting Solution Replaces Manual Splicing Processes in Harsh Environments

By News Author | June 06, 2023

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Littelfuse, Inc. (NASDAQ: LFUS), an industrial technology manufacturing company empowering a sustainable, connected, and safer world, announced the C&K SpaceSplice™ Series Wire Connecting Solution, designed to replace manual splicing processes in harsh environments. These connectors provide a standardized, easy-to-use, high-reliability solution manufactured to the highest standards.

The SpaceSplice connectors are a unique solution to wire-to-wire connection, designed to replace hand splice processes with a standardized solution that reduces labor time and is easy to use. It allows the connection of two wires using a D*MA crimpable and removable contact technology. SpaceSplice is designed to accept the most relevant gauges, reducing cost, and ensuring that only the required wires are used.

Designed to meet the highest quality requirements, SpaceSplice is ideal for demanding wiring systems, including:

  • Military/ aerospace applications like satellites
  • Launchers and payloads
  • Heater, thermistor, and multilayer insulator (MLI) connections, and
  • Other harsh environment applications

"The SpaceSplice connectors design provides a high-reliability solution that replaces manual splicing processes, offering a standardized alternative that is easy to use, reducing labor time and cost while increasing reliability," said Rémi Antoine, Global Product Manager at C&K Aerospace, now part of Littelfuse.

The SpaceSplice Series Wire Connecting Solution, with its unique design featuring removable crimp contacts, provides the following benefits:

  • Employs removable, D*MA crimpable contact technology
  • Allows for both manual and guiding-tool-assisted insertion
  • Accepts the most popular cable gauges (AWG 20 – AWG 30)
  • Provides high radiation and temperature resistance
  • Low residual magnetism and low degassing
  • Compliant with European Space Agency (ESA/ESCC 3401/097) specifications

How It Works

The SpaceSplice Wire Connecting Solution is available in a one-way series that connects two wires with a standard solution and a four-way series that is a stackable wire-to-wire connector with removable contacts, which can be beneficial in space applications where more than four ways are required. (View the video)


SpaceSplice is available and packaged for delivery in quantities of 50 for one-way and 20 for four-way configurations. Place sample requests through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit

For More Information

Additional information is available on the SpaceSplice product page. For technical questions, please contact Rémi Antoine, Global Product Manager, at

About C&K Switches

Acquired by Littelfuse in 2022, C&K Switches is a leading designer and manufacturer of high-performance electromechanical switches and interconnect solutions with a solid global presence across a broad range of end markets, including automotive, industrial, medical, transportation, aerospace, and datacom.

About Littelfuse

Littelfuse is a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 18,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse was founded in 1927. Learn more at