D38999 Ethernet Connectors
D38999 Ethernet Connectors
Key Features
Delivers full Cat6A data performance up to 10 Gbps for high-bandwidth networks
Triple-start coupling prevents signal interruption under severe vibration without any safety wiring
Integrated grounding fingers provide continuous 360-degree shielding to block intense electromagnetic interference
Premium fluorosilicone seals ensure IP68 submersion-proof protection against water, fuel, and aircraft fluids
Encapsulates standard commercial RJ45 cords into rugged military shells without specialized tooling
High-density Quadrax and Octonet inserts eliminate crosstalk in space-constrained aerospace applications
Features RoHS-compliant Black Zinc Nickel plating withstanding 500 hours of salt spray
Fully compliant with MIL-DTL-38999 Series III standards for 100% cross-brand mating compatibility
Retains structural and electrical integrity during temperature fluctuations from -65°C to +200°C
Precision-machined aluminum and stainless steel shells guarantee a minimum of 500 mating cycles
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MIL-DTL-38999 Series Ethernet Connectors：Ruggedized RJ45 & Micro-D38999 Solutions for High-Speed Data in Harsh Environments
Bridge the gap between commercial Ethernet speeds and military-grade durability. Our MIL-DTL-38999 Series Ethernet connectors integrate standard RJ45 and high-speed quadrax/coaxial contacts into proven D38999 Series III shells. Engineered for EMI/RFI shielding, IP68 waterproofing, and shock resistance, these interconnects ensure reliable 1GbE to 10GbE data transmission in aerospace, defense, and industrial IoT applications.
Advantages of Our D38999 Series Ethernet Connectors
High-Speed Data Integrity (Up to 10GbE): Supports Cat5e, Cat6, and Cat6A protocols. Available with specialized Quadrax or split-pair inserts to minimize crosstalk and return loss in high-frequency bandwidths.
Military-Grade Ruggedness: Fully compliant with MIL-DTL-38999 Series III specifications. Features a triple-start thread coupling mechanism with an anti-decoupling device to withstand extreme vibration and mechanical shock.
360° EMI/RFI Shielding: Integrated grounding fingers and conductive plating (such as Olive Drab Cadmium or Electroless Nickel) provide superior electromagnetic interference protection, crucial for defense electronics.
Environmental Sealing (IP68): Utilizes high-performance fluorosilicone interfacial seals and rear grommets to prevent fluid ingress, maintaining performance under subsea pressure or high-altitude vacuum.
Flexible Shell Configurations: Available in size 11 to size 25 shells, with options for jam nut receptacles (Z), square flange receptacles, and plugs (T) with various backshell terminations.
Explore Our D38999 Ethernet Interconnect Portfolio
■ D38999 Series III RJ45 Connectors
Transforms standard RJ45 cordsets into ruggedized, field-installable military connectors. No cabling tools required for assembly; provides IP68 protection without sacrificing data speed.
■ High-Speed Quadrax D38999 Connectors
Utilizes four outer contacts arranged in a star quad configuration. Ideal for severe vibration environments requiring consistent 100 Base-T or 1GbE Ethernet connections with minimal space utilization.
■ Octonet / 10GbE Eight-Pole Connectors
The ultimate solution for future-proof defense networks. Delivers full Cat6A performance (up to 10 Gbps per port) using 4 pairs of symmetrically shielded contacts inside a compact D38999 shell.
Technical Specifications of Our D38999 Ethernet Connectors
| Feature / Property | Specification / Compliance |
| Data Protocols | Cat5e (1 Gbps), Cat6 (1 Gbps), Cat6A (10 Gbps) |
| Coupling Type | Triple-start threaded with anti-decoupling |
| Environmental Sealing | IP67 / IP68 (Mated condition) |
| Operating Temperature | -65°C to +175°C (Cadmium) / +200°C (Nickel) |
| Mating Cycles | 500 cycles minimum |
| Shell Materials | Aluminum Alloy, Stainless Steel, Marine Bronze |
| Plating Options | Electroless Nickel, Olive Drab Cadmium, Black Zinc Nickel |
Interconnect Solutions for Mission-Critical Sectors
Aerospace & Avionics: In-flight entertainment (IFE) systems, flight control computers, and UAV datalinks requiring lightweight, high-bandwidth connections.
Defense & C4ISR: Rugged battlefield communications, radar arrays, and armored vehicle networks that demand full EMI shielding and rapid deployment.
Industrial IoT & Energy: Marine oil drilling platforms, heavy machinery, and factory automation networks exposed to corrosive salt spray and chemical washdowns.
FAQ
Q: Can I use standard commercial RJ45 patch cords with your D38999 Ethernet connectors?
A: Yes. Our D38999 RJ45 series is designed to encapsulate standard RJ45 cordsets into a ruggedized military shell. This allows you to leverage cost-effective commercial cabling while achieving IP68 protection and vibration resistance on the outside.
Q: What is the difference between Quadrax and standard RJ45 inserts in D38999 shells?
A: Standard RJ45 inserts use traditional 8-pin layouts, best for quick integration of existing network cables. Quadrax contacts use four inner contacts insulated from each other in a single outer shield, offering superior signal integrity, lower crosstalk, and much higher mechanical durability under extreme vibration.
Q: How do I select the right plating for harsh environments?
A: For defense applications requiring non-reflective surfaces and maximum corrosion resistance (500-hour salt spray), Olive Drab Cadmium or Black Zinc Nickel is recommended. For space or aerospace applications requiring high conductivity and high-temperature tolerance without toxicity restrictions, Electroless Nickel is preferred.
Q: Are your D38999 Ethernet connectors intermateable with other major brands?
A: Yes, our connectors are manufactured strictly in accordance with MIL-DTL-38999 Series III standards, ensuring 100% intermateability with standard military-spec plugs and receptacles from other certified global manufacturers.
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Strict Production Process
Engineers develop optimized electronic circuits and structural designs based on real application needs.
High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.
Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.
Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.
Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.
Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.
Strict Production Process of Yafeite
