Multi coax solution

High-frequency performance for harsh environments

LEMO expands its proven M Series with a new multi-coaxial configuration, specifically engineered to meet the demands of modern defense and communication platforms. This next-generation solution combines high-speed data performance, rugged reliability, and maximum design flexibility—all in a compact and lightweight format.

1
High Data Performance

Supports frequencies up to 26.5 GHz with low VSWR, delivering exceptional signal integrity for high-speed digital and RF applications in mission-critical systems.

2
Compact & Lightweight

Smaller and lighter than standard MIL-DTL-38999 connectors, this solution is optimised for SWaP-sensitive (Size, Weight, and Power) environments, enabling more compact system designs without compromising performance.

3
Rugged & Reliable

Built for harsh environments and tested to MIL standards, the connector features a robust ratchet coupling system that ensures secure connections in high-vibration or mobile applications.

4
Flexible Configurations

It is available in two configurations: 4x coaxial contacts and 12x coaxial contacts.
To support even greater design flexibility, LEMO now offers a dummy contact option, allowing users to seal unused cavities for both LM.232 and 3M.204 configuration and maintain full environmental protection while enabling customised configurations.

New 3M Series Multi Coax 4 contacts

Main features

  • Frequency support up to 26.5 GHz
  • Low VSWR for high signal integrity
  • Smaller and lighter than MIL-DTL-38999
  • MIL-STD tested ruggedness
  • Available in 4x and 12x coaxial contact (50 Ohm)
  • Dummy contact option for sealed, custom configurations
  • High vibration and shock resistance
  • Oil and fuel resistant
  • Wide temperature range - 55 / + 200 °C
  • 360° screening for full EMC shielding
  • Colour coding / keying
  • Sealed to IP68
  • Ratchet-coupling mechanism
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Facing a multi-coax connectivity challenge?

Reach out to our experts and discover how LEMO’s multi-coax innovation meets your most demanding needs.

With lightweight, compact designs, high-frequency performance up to 26.5 GHz, and unmatched durability, our connectors are built for mission-critical environments. Share your requirements today and let us engineer your perfect solution.