CMA connector — Safe data transmission for harsh environement
• LONG TERM RELIABILITY • 360° SHIELDING • CUSTOM DESIGN
The CMA is BERNIER Connect’s flagship circular connector: compact, stainless steel, IP68 waterproof, and engineered for long-term reliability in harsh environments. With push-pull or breakaway locking, up to 22 contacts, and full EMI/RFI shielding, it is a proven solution for land defense, aeronautics, and industrial applications requiring safe and durable electrical connections.
A compact, ruggedized connector built for demanding environments
The CMA connector is designed for applications where size constraints, mechanical stress, and environmental exposure must all be addressed simultaneously. Its stainless steel shell — with marine bronze option — delivers outstanding resistance to corrosion, hydrocarbons, and oils. The 360° EMI/RFI shielding protects signal integrity in electromagnetically noisy environments.
MECHANICAL AND CLIMATIC CHARACTERISTICS
| LOCKING | Push-pull, Breakaway |
| OPERATING TEMPERATURE | -55°C +125°C |
| NBR OF MATING-UNMATING CYCLES | up to 10 000 cycles ( 14 contacts) & 5000 cycles (22 contacts) |
| SEALING | IP68 connected and disconnected |
| CORROSION RESISTANCE (SALT SPRAY) | Stainless steel : 96 hours Marine stainless steel : 250 hours Marine bronze : 500 hours |
| FLUID RESISTANCE | Hydrocarbon and oils |
ELECTRICAL CHARACTERISTICS
| NBR. OF CONTACTS | 4 | 6 | 10 | 14 | 22 |
| GAUGE - AWG | 18 | 18 (2cts) 22 (4cts) | 22 | 22 | 26 |
| TYPES OF CONTACTS | PCB pins or Solder cup | ||||
| OPERATING VOLTAGE | 60V max | ||||
| CURRENT RATING PER CONTACT | 4 A max | 4 A max 1.5A max | 1,5 A max | 1,5 A max | 2 A max |
| CONTACT RESISTANCE | ≤ 10 mΩ | ||||
| INSULATING RESISTANCE | > 1000 MΩ under 500VDC | ||||
| DIELECTRIC STRENGTH | 80 dB at 8 kHz | ||||
| DIELECTRIC STRENGTH | 500 Veff at/à 50 Hz | ||||
| EMI RFI PROTECTION | Yes | ||||
MATERIALS
| CONNECTOR SHELL | Standard : Stainless steel Option : Marine stainless steel and Marine Bronze |
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| CONNECTOR SHELL PLATING | Beadblasted Passivated / Sand blasted Passivated / Black Chrome | |
| INSERT | PBT | |
| CONTACTS | Copper alloy plated with gold over nickel | |
| SHIELDING RING | Beryllium copper | |
| BACKSHELL | Aluminum or Stainless steel | |
| BACKSHELL PLATING | Black chrome / Black anodizing/ Sand blasted Passivated | |
- Last update: 10/05/2026
APPLICATIONS
- Land defense: SDR radios, rugged computers, C4ISR, wearable soldier systems
- Civil and military aeronautics: onboard electronics, avionics communication
- Security: portable tactical equipment, intercom systems
- Industry: machine control, robotic systems, automation
