What are the benefits of using a 2-Fiber 4-Electrical Hybrid Subsea Connector?

A 2-fiber 4-electrical hybrid subsea connector is a specialized underwater interface that combines high-speed fiber optic data transmission and electrical power supply in a single housing. HYSF’s custom version features a 60MPa pressure rating, making it suitable for deep-sea missions up to 6000 meters, ensuring zero signal loss and robust power delivery for ROVs and subsea observatories.

Q1: Why combine fiber optics and electrical power in one subsea connector?

Answer: In deep-sea exploration, space on the bulkhead is premium. Our Hybrid Connector (2 Fiber + 4 Electrical) allows operators to transmit high-definition video feeds or massive sensor data via fiber optics while simultaneously providing reliable DC power through the 4 electrical pins. This integration reduces the number of hull penetrations, lowering the risk of leaks and simplifying system maintenance.

Q2: What does a 60MPa pressure rating mean for my project?

Answer: A 60MPa pressure rating indicates that the connector has been rigorously tested to withstand 600 bar of pressure, equivalent to approximately 6000 meters (19,685 feet) of water depth. This makes it an ideal choice for:

  • Deep-sea Research & Exploration.
  • Heavy-duty Work Class ROVs.
  • Long-term seafloor observatories.
  • High-pressure oil and gas subsea modules.

Q3: What customization options are available for HYSF Hybrid Connectors?

Answer: At HYSF Subsea, we specialize in bespoke engineering. For our hybrid series, you can customize:

  • Housing Materials: Choose from 316L Stainless Steel, Titanium Alloy (for maximum depth/corrosion resistance), or Anodized Aluminum.
  • Fiber Type: Single-mode or Multi-mode options.
  • Electrical Specs: Current and voltage ratings tailored to your power requirements.
  • Thread & Mounting: Custom thread sizes (like M10, M14, M16) to fit your existing pressure vessels.

Q4: How do you ensure the reliability of the fiber-optic seal at 60MPa?

Answer: Precision is our priority. We utilize advanced glass-to-metal sealing or specialized epoxy potting technologies combined with a Reinforced Double O-Ring design. Each unit undergoes 1.5x working pressure testing in our hyperbaric chambers to ensure that the optical alignment remains perfect and the electrical insulation remains >5000 MΩ even at extreme depths.


Need a custom hybrid solution for your next deep-sea mission? Our engineering team at HYSF is ready to help you design the perfect link.

Picture of John Zhang

John Zhang

(CEO & Lead Engineer)
Email: info@hysfsubsea.com
With over 15 years of expertise in subsea interconnect technology, I lead HYSF's R&D team in designing high-pressure (60MPa) solutions. My focus is on ensuring zero-leakage reliability for ROVs, AUVs, and offshore instrumentation. I personally oversee the validation of our custom connector prototypes.

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John Zhang

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