Rugged power and data connectors for uncrewed aircraft and wearable electronics introduced by LEMO

The OPTIMA D series offers IP68 sealing even when unmated; MIL-STD-810H compliance; and push-pull and break-away latching for secure blind mating.
Nov. 19, 2025
2 min read

Summary points:

  • LEMO USA introduces the OPTIMA D series compact, rugged power and data connectors designed for defense, aerospace, and mission-critical systems.
  • The connectors meet IP68 and MIL-STD-810H standards, featuring modular design, 5-way keying, and secure push-pull or break-away latching for harsh environments.
  • With an overmolded form factor 25 percent shorter than standard models, the OPTIMA D series supports high-speed data, multipole, and coaxial configurations for space-limited applications.

ROHNERT PARK, Calif. – LEMO USA, Inc. in Rohnert Park, Calif., is introducing the OPTIMA D series compact and rugged power and data connectors for defense, aerospace, and mission-critical systems.

The OPTIMA D connectors combine miniaturized form factors with military-grade reliability in tactical communications, uncrewed aircraft, avionics, and soldier-worn equipment.

The OPTIMA D series offers IP68 sealing even when unmated; MIL-STD-810H compliance for shock, vibration, and extreme environmental stress; push-pull and break-away latching for secure, blind mating in high-pressure scenarios; modular design with 5-way keying to support rapid deployment and error-free connections; and several configuration options including high-speed USB and Ethernet, multipole, and coaxial.

Overmolded design

These rugged connectors offer an overmolded design that’s 25 percent shorter than standard LEMO connectors, the OPTIMA D series enables space-constrained integration without compromising signal integrity or ruggedness.

It offers uniform circuit board height and flush-mounting options; custom overmolding; complex harness design; private labeling; and certified production to IPC-620, ISO 9001, AS9100, and MIL-STD-810.

For more information contact LEMO online at www.lemo.com/en/solutions/highlight/d-series.

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