M12 Robust and Reliable Circular Connectors

Smiths Interconnect
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M12 Connector series has been specifically developed for applications where space or weight are at a premium. The compact and robust design incorporates hyperboloid contacts to provide an unrivalled performance.

Smiths Interconnect M12 series, are ideal for communication applications, including factory automation, drive motors, machine tools, robots, conveyor systems, handling machines and elevators, etc. They all feature outstanding protection against electromagnetic interference through a full 360° screen connection. The design features a unique side loading contact retention system that provides a positive contact retention and simplifies the assembly process. This simplified approach to contact assembly not only makes the product series very user-friendly, but also reduces assembly times. Within a common housing design, Smiths Interconnect M12 series includes insert options from 3 to 8 ways, with both crimp and solder contact terminations available.  A complete range of options and accessories are available as standard, making the series suitable for a wide range of applications. In addition, the total number of components used in the design has been optimized to reduce stocking requirements on free assembled versions. 


  • Superior contact performance
  • Contact assembly with sideway clip insulator design
  • Fire and smoke compliance UL94 V0
  • Robust housings
  • Environmental level IP67
  • 360° electromagnetic shielding
  • Crimp and solder contacts
  • Machined and stamped contacts
  • Very compact design Ø 15mm
  • Fluid resistance against oil, hydrolysis, microbes
  • Vibration resistance acc. to DIN EN 60068-2-64
  • RoHS compliant


  • Servos & Drives
  • Controls
  • Encoders 
  • Machinery
  • Conveyance
  • Robotics
  • Rolling stock
  • Signalling
  • Rail infrastructure
  • Factory Automation
  • Test Equipment