M - Rugged Ratchet coupling
LEMO lightweight, compact, high vibration resistant (Mil STD 202 & 810F), IP68 screw locking connector
Main Features
- Harsh environments (IP68)
- Ratchet coupling, strong resistance to shocks and vibrations
- Stealth Anthracite coating
- Light & compact construction
- Robust Multi-Keying system with color coding
Reliable High quality and performance interconnect solutions
Modular and custom made complete solutions
Worldwide presence with local experts, stock management and cable assembly everywhere
Form & Material
- Environment
- Broad metallic high quality circular connector range for rugged environments (IP68)
- Latching system
- Ratchet Coupling enabling easy fast easy yet secure and reliable frequent connect and disconnect, and with very strong resistance to shocks and vibrations
- Keying system
- Keying system allowing for a high contact density, with multiple key options and color coding to prevent mismating
- Construction
- Field proven solid, light & compact construction, oil and fuel resistant
- Ergonomy
- Ergonomic design with knurled or arctic grip patterns, scoop proof
- Size and model
- Various sizes and models including miniature, watertight and vaccumtight models, MIL-DTL-38999L backshell
Electrical configurations
- Insert configurations
- Large selection of insert configurations including high-density low voltage, high power, high-speed, coaxial and fibre optic contacts as well as hybrid solutions
- Screening
- 360° screening for full EMC shielding
20 Oct 2023
M series catalog
20 Oct 2023
Product brief - High-speed data transfer
20 Oct 2023
Product brief - M series High Power
20 Oct 2023
Product brief - M series Multi coax solution
20 Oct 2023
Connector selection guide eng
OPTIMA
Use the table to compare the 2 main series within the OPTIMA connector family and to identify the connector(s) best adapted to your specific requirements.
| Description | Description LEMO lightweight, compact, high vibration resistant (Mil STD 202 & 810F), IP68 screw locking connector | Description LEMO lightweight, compact, high vibration resistant (Mil STD 810F), IP67 Push-Pull connector |
| Locking | Locking Triple start, 3/4 turn rachet coupling | Locking Push-Pull |
| Size | Size 9 sizes from ø 11.1 to ø 34.0 mm (plugs) | Size 9 sizes from ø 8.5 to ø 36.1 mm (plugs) |
| Keying | Keying 6 keyway options | Keying 4 keyway options |
| Shell Types | Shell Types Over 40 shell styles | Shell Types Over 12 shell styles |
| Shell Material | Shell Material Aluminium or Brass | Shell Material Aluminium or Brass |
| Plating | Plating Antracite nickel or Chrome | Plating Antracite nickel or Chrome |
| Cable Diameter | Cable Diameter 2.2 to 34 mm • 4 backshell options available | Cable Diameter 2.2 to 34 mm • 1 backshell option |
| NB of contact | NB of contact 3 to 114 | NB of contact 3 to 66 |
| AWG | AWG LV 16 to 32 mm • Hpower 1 to 8 mm | AWG 18 to 32 mm |
| Contact types | Contact types Multipole • Coax • Fibre Optic • Fluidic Mixed • High power | Contact types Multipole • Fibre Optic |
| Contact Termination | Contact Termination Crimp / Print (PCB) | Contact Termination Crimp / Print (PCB) |
| Data Protocols | Data Protocols USB 2.0 / Eth Cat6 | Data Protocols - |
| Sealing level | Sealing level IP68 / hermetic sockets | Sealing level IP68 / hermetic sockets |
| Temperature range | Temperature range -55°C to 200°C | Temperature range -55°C to 200°C |
| Mating Cycles | Mating Cycles > 3000 | Mating Cycles 300 / 5000 acc. to sizes/material |
M - Rugged Ratchet coupling
In harsh environments connectors need to be reliable, strong and resistant to vibration. The M series, used in the aerospace, UAV, defence, and motorsport industries, uses a ratchet screw system for rapid and secure coupling. Lightweight and compact yet robust and oil/fuel resistant, the M series is available in a variety of sizes (including miniature), watertight and vacuum-tight models, threaded model compatible with standard MIL-DTL-38999L backshells. The keying system offers high contact density for secure signal transmission, and sensitive signals are protected by 360° EMC shielding. A large selection of insert configurations including high-density low voltage, high power, high-speed, coaxial and fibre optic contacts and as well as hybrid solutions is available.
- Plug
- Straight
- Nb of contacts
- 4
- Termination
- Crimp
- Wire Size/AWG
- 26 - 22
- Jacket cable outside diameter [mm]
- 4.00 - 8.00 mm
- Plug
- Straight
- Nb of contacts
- 4
- Termination
- Crimp
- Wire Size/AWG
- 26 - 22
- Jacket cable outside diameter [mm]
- 4.00 - 8.00 mm
- Plug
- Straight
- Nb of contacts
- 5
- Termination
- Crimp
- Wire Size/AWG
- 26 - 22
- Jacket cable outside diameter [mm]
- 4.00 - 8.00 mm
- Plug
- Straight
- Nb of contacts
- 5
- Termination
- Crimp
- Wire Size/AWG
- 26 - 22
- Jacket cable outside diameter [mm]
- 4.00 - 8.00 mm
- Plug
- Straight
- Nb of contacts
- 8
- Termination
- Crimp
- Wire Size/AWG
- 26 - 22
- Jacket cable outside diameter [mm]
- 4.85 - 9.70 mm
- Plug
- Straight
- Nb of contacts
- 7
- Termination
- Crimp
- Wire Size/AWG
- 26 - 22
- Jacket cable outside diameter [mm]
- 4.85 - 9.70 mm
- Plug
- Straight
- Nb of contacts
- 8
- Termination
- Crimp
- Wire Size/AWG
- 24 - 20
- Jacket cable outside diameter [mm]
- 6.50 - 13.00 mm
- Plug
- Straight
- Nb of contacts
- 8
- Termination
- Crimp
- Wire Size/AWG
- 24 - 20
- Jacket cable outside diameter [mm]
- 6.50 - 13.00 mm
- Plug
- Straight
- Nb of contacts
- 8
- Termination
- Crimp
- Wire Size/AWG
- 24 - 20
- Jacket cable outside diameter [mm]
- 6.50 - 13.00 mm
- Plug
- Straight
- Nb of contacts
- 10
- Termination
- Crimp
- Wire Size/AWG
- 24 - 20
- Jacket cable outside diameter [mm]
- 6.50 - 13.00 mm
- Plug
- Straight
- Nb of contacts
- 10
- Termination
- Crimp
- Wire Size/AWG
- 24 - 20
- Jacket cable outside diameter [mm]
- 6.50 - 13.00 mm
- Plug
- Straight
- Nb of contacts
- 12
- Termination
- Crimp
- Wire Size/AWG
- 26 - 22
- Jacket cable outside diameter [mm]
- 6.50 - 13.00 mm
- Plug
- Straight
- Nb of contacts
- 12
- Termination
- Crimp
- Wire Size/AWG
- 26 - 22
- Jacket cable outside diameter [mm]
- 6.50 - 13.00 mm
- Plug
- Straight
- Nb of contacts
- 2
- Termination
- Crimp
- Wire Size/AWG
- 24 - 20
- Jacket cable outside diameter [mm]
- 4.00 - 8.00 mm
- Plug
- Straight
- Nb of contacts
- 2
- Termination
- Crimp
- Wire Size/AWG
- 24 - 20
- Jacket cable outside diameter [mm]
- 4.00 - 8.00 mm
News
LEMO proud winner of 2023 Gold LEAP Awards
Each year, Design World magazine presents LEAP (Leadership in Engineering Achievement Program) Awards to celebrate the most innovative and forward-thinking products serving the design engineering space.
New multi coaxial model with High frequency performance
LEMO is thrilled to announce the expansion of its field-proven M Series with a new multi coaxial configuration, named LM.232, available in size LM with up to 12x coaxial contacts. These new plugs and fixed sockets have been specifically designed to satisfy the most stringent high frequency connection requirements under very demanding environmental conditions.This new insert configuration integrates 12x coaxial contacts type 0R (50 Ohm), allowing the transmission of high frequency data up to 26.5 GHz with a low Voltage Standing Wave Ratio (VSWR). The coaxial contact is easy to mount, thanks to its crimp contact and retaining clip. It is designed to be terminated with flexible low-loss communication cable LMR-100A or MULTIFLEX 86.Typical applications are wireless network 5G wireless networks, radar systems, battlefield communications and UAV anti-drone technology.Thanks to its expertise and cable assembly capabilities, LEMO is at your disposal to assist you in providing complete interconnect solutions.
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No matter how harsh the environment may be, LEMO has a solution ready for you to implement today.
If not, we promise to relentlessly innovate and develop one for you.
Please take a moment to reach out and describe your project, technical specifications and deadlines. We’re standing by and looking forward to hearing from you – and adding your business to our thousands of longstanding satisfied customers, partners and employees – very soon.