CMA SD connector — miniature, IP68, 10 Gb Ethernet compatible
• MINIATURE • EMI / RFI PROTECTION • FULL RELIABILITY
The CMA SD is the smallest circular connector BERNIER makes : a miniature stainless steel push-pull connector supporting 10 Gb Ethernet and high-speed signals in a minimal footprint. IP68 sealed, rated to -55°C/+125°C, and fully EMI/RFI shielded, it is designed for applications where size and data throughput are both critical.
Miniature form factor with 10 Gb Ethernet performance
The CMA SD achieves a combination rarely found in ruggedized connectors: a miniature footprint compatible with 10 Gb Ethernet transmission. Available in 8 or 19 contact configurations, it uses PEEK or thermoplastic inserts for thermal stability across extreme temperature ranges. Its stainless steel shell — with marine stainless steel and marine bronze options — delivers proven corrosion resistance in harsh environments.
UP TO 10 Gb ETHERNET
MINIMUM FOOTPRINT
EMI / RFI PROTECTION
MECHANICAL AND CLIMATIC CHARACTERISTICS
| Locking | Push-pull |
| Operating temperature | -55°C to +125°C |
| Nbr of mating-unmating cycles | up to 5000 cycles |
| 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 / hydrocarbures et huiles |
ELECTRICAL CHARACTERISTICS
| Nbr. of contacts | 8 contacts | 19 contacts |
| Gauge - AWG | 26 | 28 |
| Types of contacts | PCB pins or solder cup | |
| Operating voltage | 60 Vmax | 28 Vmax |
| Current rating per contact | 2 A max | 1 A max |
| Contact resistance | ≤ 10 mΩ | ≤ 20 mΩ |
| Insulating resistance | > 1000 MΩ under 500VDC | > 1000 MΩ under 100VDC |
| Dielectric strength | 500 Veff at/à 50 Hz | |
| EMI RFI Protection | Yes | |
MATERIALS
| Connector shell | Standard : Stainless steel Options : Marine stainless steel / Marine Bronze |
| Connector shell plating | Beadblasted Passivated |
| Insert | Thermoplastic / PEEK |
| Contacts | Copper alloy plated with gold over nickel |
| Shielding ring | Beryllium copper |
| Backshell | Aluminum |
| Backshell plating | Black chrome or Black anodizing |
- Last update:10/05/2026
APPLICATIONS
- Land defense: wearable soldier systems, portable SDR radios, C4ISR with minimal footprint
- Civil and military aeronautics: high-speed data links in space-constrained avionics
- Security: compact portable equipment with network connectivity
- Industry: miniaturized control systems requiring high-speed data transmission
