Rugged RJ Connectors (MRJ/MRJR Series)

Amphenol ICC
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Amphenol supplies standard and customized harsh environment RJ11 and RJ45 connectors to meet the needs of the fast growing networking market. These connectors are ideal for harsh environments where Ethernet/IP protocol is used.

The MRJ/MRJR connectors are designed for true mobility within a rugged enclosure while having cost efficiency in mind. We work diligently with our customers to identify the specific environment and design needs for their application.

Interconnection solutions are developed to maximize a product’s performance in a harsh environment fulfilling military and other industry standards such as IP67, shock and vibration. Special features including EMI filtering and Transient Voltage Protection are available together with various termination styles.

The harsh environment series utilizes a die cast shell and is fully water proof in the mated and un-mated condition for a highly rugged and corrosion resistant performance. These Rugged RJ connectors are available in both vertical and right angle, 4, 6, 8 & 10 contacts, with the addition of cable headers, terminal blocks, standard RJ, PCB for wiring only, with or without LED's. Also available are dust covers and also a splash-proof boot for the RJ plug assembly.


  • Zinc Die Cast shells
  • Available in 4, 6, 8 & 10 contact versions
  • Damage protection against accidental mating with an RJ11 or an improperly terminated RJ plug
  • Meets and exceeds IP67 in mated and unmated conditions
  • Conductive and Non conductive gaskets available


  • Medical equipment
  • Military communications and vehicles
  • Mobile Entertainment Systems
  • Instrumentation (test & measurement)
  • GPS positioning equipment
  • Military and Industrial computers
  • Industrial and agricultural equipment