General Atomics

LEMO launches rugged OPTIMA D Series connectors

Worthing based LEMO has introduced the OPTIMA D Series, a compact and rugged connector platform engineered for performance in demanding environments.



Image courtesy LEMO

Purpose-built for defence, aerospace and mission-critical systems, the new series combines miniaturised form factors with military-grade reliability.

Engineered to meet the evolving needs of tactical communications, UAVs, avionics and soldier worn equipment, the OPTIMA D Series offers:

  • IP68 sealing (20m/2h) – even when unmated
  • MIL-STD-810H compliance – resistant to shock, vibration and extreme environmental stress
  • Push-Pull and Break-Away latching – for secure, blind mating in high-pressure scenarios Modular design with robust 5-way keying – to support rapid deployment and error-free connections
  • Multiple configuration options – including high-speed (USB, Ethernet), multipole and coaxial

With a compact, overmoulded design that is 25% shorter than standard LEMO connectors, the OPTIMA D Series enables space-constrained integration without compromising signal integrity or ruggedness. Its uniform PCB height and flush-mounting options streamline system architecture, making it a go-to choice for OEMs developing compact, durable platforms.

To support rapid and secure integration, LEMO offers full cable assembly services:

  • Custom overmolding
  • Complex harness design
  • Private labelling
  • Certified production: IPC-620, ISO 9001, AS9100 and MIL-STD-810

The OPTIMA D Series is now available globally for new designs or system upgrades, directly from LEMO and its network of authorised distributors and partners.

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