Hybrid connector OPTIMA D Series

dataelectrical power supplyfor the aerospace industry

Product Overview
LEMO’s latest innovation—the OPTIMA D Series—combines high-performance engineering with a compact, lightweight design built for the toughest environments. Developed for defence, aerospace, and mission-critical systems, it delivers IP68 protection even when unmated, robust 5-spur keying for secure blind mating, and a modular design for seamless integration. Rigorously tested to MIL-STD-810H, the OPTIMA D Series offers rugged reliability and design flexibility—all in a space-saving form factor.

Optimized for Military, Aerospace & Tactical Systems
The D Series offers the optimal miniature connectivity solution for soldier-worn applications like radios, headsets, cameras and visual enhancement devices. Engineered with exceptional vibration resistance, it’s also the perfect choice for UAV or aerospace applications.

Advanced design. Military-grade performance.

Compact & Miniature Design

• Overmolded plug is 25% shorter than standard LEMO Series
• Small plug diameters optimize tight-space integration
• High contact density – up to 32 contacts in a compact form

Rugged & Reliable Performance

• MIL-STD-810H tested for shock, vibration, and environmental resistance
• IP68 sealing (20m/2h) even when unmated
• EMI/RFI shielding ensures clean, uninterrupted signal transmission

Modular Design for Maximum Flexibility

• Choice of push-pull or break-away latching systems
• Robust 5-spur keying enables safe and accurate blind mating
• Available in five sizes with multiple configurations:
  • High-speed (USB, Ethernet)
  • Multipole power/signal
  • Coaxial solutions
• Easy mechanical integration:
  • Flush mounting on the enclosure
  • Uniform PCB height across all sizes
• Three socket models for streamlined system adaptation

Key features

• Compact size and miniature design
• Rugged design withstanding harsh conditions
• High pin density with a broad variety of combinations
• Sealing performance ensuring reliability in wet, dusty or submersible environments
• Dark and non-reflecting surface treatment with high corrosion resistance
• Secure locking mechanism even in high vibration environment
• Compliant with MIL-STD-810H, ensuring performance in the toughest military applications

Technical characteristics
Endurance | > 5000 matings
Ingress Protection Index (mated) | IP68 (20m/2h) unmated
Housing material | Nickel plated brass
Min. & Max. operating temperature | -55°C/+150°C (socket)
-40°C/+90°C (plug & free socket)
Salt fog | 1000 hours
Vibration | 37.8g max, 8 hours
Shielding effectiveness | > 75 dB up to 10 MHz
> 40 dB up to 1 GHz

Cable Assembly Services
LEMO offers complete solutions including cable selection, meticulous cable assembly, and proficient overmolding services:
• Custom Solutions: Expert in complex cable harnesses and assemblies overmolding.
• Private Labeling: Tailored branding for sensitive projects.
• Certifications: IPC-620, ISO 9001, AS9100, MIL-STD-810, and more.
• End-to-End Support: From design to delivery, with timely and reliable service.

Caractéristiques / spécifications techniques

• Series: OPTIMA D Series
• Application: Military, Aerospace, Tactical, UAV, Soldier-worn electronics
• Protection: IP68 (20m/2h) even unmated
• Keying: 5-spur for blind mating
• Tested to: MIL-STD-810H
• Contact density: up to 32
• Housing: Nickel plated brass
• Temperature range: -55°C/+150°C (socket), -40°C/+90°C (plug & free socket)
• Salt fog resistance: 1000 hours
• Vibration: 37.8g max, 8 hours
• Shielding effectiveness: >75 dB up to 10 MHz, >40 dB up to 1 GHz
• Available latching: Push-pull or break-away
• Sizes: Five, with multiple configurations (USB, Ethernet, multipole, coaxial)