Hirose – Waterproof, shielded circular connectors have IP68 rating


Hirose has introduced the LF series of robust, compact circular connectors for applications which require a high level of water resistance.

The LF connectors, which have a bayonet locking mechanism, are supplied as cable-mount plugs, panel-mount receptacles and cable-mount jacks for in-line connections.

The connectors feature an electrically shielded structure with springs inside the housing. These springs ensure the connections between the shielded cables, plug shell and mated receptacle are secure.

Waterproof gaskets are placed at each internal joint to prevent water intrusion into the connector, guaranteeing IP68-rated water resistance.

The simple assembly procedure allows the waterproof gaskets to be sealed and the cable and shielding to be clamped simultaneously by the tightening ring, with very little tooling required. The connector design reduces the number of components needed to make a cable assembly, and cuts production costs and time.


  • Contact positions: 3, 4, 6, 11, 12, 20
  • Accepts cable sizes 16 AWG, 20 AWG or 26 AWG
  • Maximum current ratings: 2A, 5A or 10A
  • Maximum voltage ratings: 125V AC/175V DC
  • UL and TÜV recognised
  • 1,000 mating cycles


  • Machine tools
  • Measuring equipment
  • Sensors
  • Security cameras
  • Servo motors
  • Base transmitter stations
  • Industrial robots
  • Medical equipment
  • LED lighting