Amphenol Commercial MRJR Ruggedized RJ Receptacle Connectors

Amphenol MRJR Ruggedized RJ Receptacle Connectors feature die-cast housings and IP67 sealing for Harsh environment applications. These connectors provide reliable performance in extreme conditions for demanding applications and mate with standard RJ plugs where Ethernet/IP protocol is used. The MRJR connectors protect against shock, vibration, and impact preventing distortion. A wide variety of mounting and termination options are available operating in a temperature range of -55°C to +105°C.


  • IP67 sealing protects equipment from water and dust incursion
  • Internal and external seals made with flexible silicone rubber
  • Standard RJ interface where Ethernet/IP Protocol is used
  • Die-cast metal housing is mechanically rugged and stable, protecting against shock, vibration, and impact preventing distortion
  • Mates with existing standard connectors
  • The connectors can replace existing standard parts with little to no changes or additional space required
  • Offered in a wide variety of mounting and termination options


  • Materials
    • Nickel-plated, die-cast zinc external shell
    • Clear polycarbonate front insert, UL94V-0
    • High-temperature resistance nylon, glass-reinforced rear inserts, UL94V-0
    • Phosphor bronze contacts
      • Plated with 1.27µm (50µ") minimum gold over 1.27µm (50µ") minimum nickel on the mating area
      • Plated with 2.54µm (50µ") minimum matte tin over nickel on the contact tails
    • Nickel-plated copper-alloy mating area ground tab
    • Black conductive silicone rubber panel gasket
    • Epoxy lens LEDs with tin-plated steel tails
    • Nickel-plated steel rear screws
    • Beige silicone rubber internal O-ring
    • Lead-free FR4 fiberglass printed circuit board
    • Nickel zinc soft ferrite ceramic on the ferrite
  • Electrical
    • 1.5A maximum current rating per contact
    • 20mΩ maximum contact resistance
    • 500mΩ minimum insulation resistance
    • Dielectric withstand voltage
      • 1000VAC/rms between adjacent contacts
      • 1500VAC/rms from contacts to ground
    • LED characteristics
      • 25mA forward DC current
      • 2.5V maximum at 2mA forward voltage
  • Mechanical
    • -55°C to +105°C operating temperature range
    • 2500 mating cycles per EIA 364-09
    • Vibration of 10g, 10Hz to 500Hz, 6 hours, no discontinuity >1µs per EIA 364-28 Random Condition II
    • Shock of 11ms, 50g, 1/2 sine, no discontinuity >1µs per EIA 364-27 Test Condition A
    • 20N (4.5lbf) maximum insertion and withdrawal force with latch disengaged per EIA 364-13
    • IP67 rating per IEC 60529
  • Environmental
    • 1.5A, +70°C, 500 hours temperature life with load per EIA 364-17
    • 1000 hours, +105°C temperature life without load per EIA 364-17
    • -55°C to +105°C, 25 cycles thermal shock per EIA 364-32
    • 21 cycles, 504 hours, +25°C to +65°C, 90% to 95% relative humidity with -10°C cold shock per EIA 364-31
    • Cl2, NO2, H2S, SO2 mixed flowing gases with 14-day exposure per EIA 364-65 class IIA
    • 250 hours, 5% salt, +35°C salt spray per EIA 364-26
    • Isopropyl alcohol and 5% sodium hydroxide solution resistance, 24-hours each
    • 0.5mCd minimum LED luminous intensity at 2mA forward current


  • Transportation
  • Datacom/Telecom
  • Energy/Industrial
  • Medical
  • Military
Published: 2010-05-04 | Updated: 2023-04-03