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Coaxial 50-5 Watertight Connector

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1. Tegningsinformasjon

Dimensjoner i mm (1 mm = 0,03937 tommer)
Gjenger i tommer (1 tomme = 25,4 mm)

2. Male View

3. Hovedparametere

Male ViewMain ParametersMerknader
[Coaxial Image]Working Pressure
50MPa
Coaxial Cable
50-3
50-5
Signal Transmission Frequency
1.6GHz
Voltage Standing Wave Ratio
1.3
Return Loss
-0.75dB
Installation Requirements:
Drawing dimension unit: mm.
Base mounting radius: 12.5 mm.
Surface finish: Ra1.6.
Mounting thread: 1/2-20UNF-2A.
Thread length: 16 mm.

4. Product Description

Coaxial 50-5 Watertight Connectors

Product Overview & Series Introduction

Den Coaxial 50-5 Watertight Connectors series by HYSF Subsea (Xiamen Chuida Technology Co., Ltd.) is a premium high-frequency interconnect solution meticulously engineered for deep-sea and marine Radio Frequency (RF) signal transmission. Designed specifically to maintain absolute signal integrity while operating under severe hydrostatic pressures, this high-performance coaxial product line ensures ultra-low insertion loss and exceptional data transmission stability. Developed through our dedicated independent technical innovation system, this specialized high-frequency series breaks long-standing international brand monopolies, serving as an elite domestic substitution for core imported subsea connectivity components.

Every connector configuration in the 50-5 series features precision-engineered contacts housed within a heavy-duty neoprene rubber body, integrally formed using an advanced unibody High-Temperature Vulcanization (HTV) process. This sophisticated structural layout delivers uncompromised pressure-tight sealing, robust physical insulation, and enduring resistance to harsh marine conditions. To achieve flawless RF distribution across specialized high-frequency marine instrument enclosures, radar panels, and subsea vehicle frames, the series offers complete interconnected sets, including:

  • High-Frequency Cable Assemblies: Specialized low-attenuation Coaxial Female cable lines (SFIZILF) and flexible Male inline assemblies engineered with a dedicated 50Ω impedance matching profile to eliminate signal reflections.
  • Precision Bulkhead Receptacles: Rugged Coaxial Male threaded receptacles (SFTZBHM) built with a standard 1/2-20UNF-2A installation thread profile and a compact base mounting radius of 12.5 mm for high-density panel penetration. Receptacle housings are precision-machined from elite marine-grade metals—such as 316L Stainless Steel, Titanium Alloy, or Naval Brass—paired with premium high-elastic fluororubber O-rings to maintain absolute chassis pressure integrity.
  • Fitted Protection Fittings: Heavy-duty matching Coaxial Male protective blanking plugs (SFTZDCM) and Coaxial Female blanking plugs (SFTZDCF), paired with precision structural locking nuts to completely isolate uncoupled channels from salt spray, seawater ingress, and biological fouling.

Key Technical Specifications & Core Features

  • Dedicated 50Ω Impedance Profile: Outfitted with premium 50-5 (and alternative 50-3 option compatibility) subsea coaxial shielding to maintain seamless electrical matching and suppress high-frequency signal attenuation or data cross-talk.
  • High-Frequency Transmission Bandwidth: Certified to comfortably handle high-frequency RF transmission up to 1.6 GHz while maintaining an optimal Voltage Standing Wave Ratio (VSWR) of 1.3 and a minimized insertion loss profile of just -0.75dB.
  • Deep-Sea Hydrostatic Rating: Fully verified under a maximum continuous working pressure of 50MPa, guaranteeing an absolute zero-leakage security threshold at simulated depths down to 5,000 meters.
  • Electrical Parameter Integrity: Safely operates under a working voltage of 550V AC/DC, maintaining low contact resistance (<0.01Ω) and an insulation resistance of greater than or equal to 200MΩ @ 1000V DC.
  • Broad Operating Envelope: Engineered to preserve structural material flexibility and mechanical locking compliance across extreme operating temperatures ranging from -60°C up to +80°C with a mechanical lifespan exceeding 500 mating cycles.

Industrial Applications & Working Conditions

Den Coaxial 50-5 Subsea Series is explicitly tailored to handle continuous multi-channel RF data looping under intense industrial vibrations, deep-water hydrostatic loads, high-salinity corrosive salt sprays, and harsh underwater working conditions. Critical application deployment sectors include:

1. Acoustic Detection Equipment & Sonar Systems

Acts as the mission-critical connection interface for marine acoustic positioning transducers, subsea hydrophone arrays, and side-scan sonar platforms. The precise 50Ω impedance layout ensures raw acoustic telemetry streams and environmental echo signals return to central processing hulls with high return loss performance and zero wave distortion.

2. Marine Radar & High-Frequency Communication Grids

Serves as the high-frequency RF connectivity backbone for subsea communication nodes, surface-splash naval radar hubs, and scientific research instrumentation arrays. It allows high-frequency microwave and wave signals to route continuously through hull bulkheads with high return loss performance.

3. Real-Time High-Definition Underwater Video Monitoring

Extensively deployed to connect high-bandwidth deep-sea analog and high-frequency digital camera systems. By supporting high-bandwidth single-channel transmission paths, it enables real-time, flicker-free transmission of critical visual data during complex deep-water deployment and recovery operations.

4. Marine Robotic Systems & Secondary Sensor Breakouts (ROVs & AUVs)

Deploys as a small-footprint high-speed signal transmission path on Remotely Operated Vehicles (ROVs) and Autonomous Underwater Vehicles (AUVs). Its vulcanized neoprene body efficiently handles mechanical pulling strains and severe mechanical jolts while keeping high-speed computing data loops dry under high deep-water pressure loads.

Ofte stilte spørsmål (FAQ)

Q1: What are the primary structural advantages of the Coaxial 50-5 series compared to regular multi-pin data connectors?

A: Standard multi-pin connectors can experience severe high-frequency signal distortion, data attenuation, and cross-talk when transmitting RF signals over long subsea cables. The Coaxial 50-5 series utilizes a dedicated coaxial shielding arrangement paired with a precision-matched 50Ω impedance line, making it uniquely capable of handling high-frequency transmissions up to 1.6 GHz with minimal insertion loss (-0.75dB).

Q2: Can these Coaxial 50-5 watertight connectors be plugged and unplugged while fully submerged underwater?

A: Yes, absolutely. This series features dependable wet-mateable technology. The high-temperature vulcanized neoprene rubber bodies are designed with tight-tolerance wiping lips that physically displace moisture away from the contact interfaces during coupling, ensuring the connection preserves an insulation threshold comfortably exceeding 200MΩ even when mated in high-salinity seawater.

Q3: What strict factory quality testing protocols do these coaxial connectors undergo?

A: Product reliability in extreme data environments is our core foundation, ensuring a proven 99.98% field reliability rate. Every single production batch undergoes severe pre-shipment testing inside our standardized inspection architecture before factory delivery:

  • Hydrostatic Pressure Testing: Tested inside our specialized 100MPa high-pressure pump system, holding full target pressure for 60 minutes to verify zero structure leakage and zero material deformation at simulated operational depths up to 5,000 meters.
  • Insulation Resistance (IR) Test: Verified with a 15kV insulation tester across all contacts and nodes to guarantee that insulation properties comfortably exceed ≥200MΩ @ 1000V DC.
  • Dielectric Withstand Test (Hipot): Evaluated at 2000V DC for 1 minute between the internal core conductor and the outer metal shielding to confirm that leakage current remains safely below 10mA.
  • High-Frequency Parameter Testing: Checked via calibrated vector network analyzers to verify a steady Voltage Standing Wave Ratio (VSWR) below 1.3 and insertion loss limits within the standard -0.75dB requirement.

Q4: What base metal options can be specified for the bulkhead receptacle housing shells?

A: Our standard stock configurations feature high-temperature vulcanized neoprene rubber molded over premium 316L rustfritt stål, which provides excellent overall mechanical strength and standard rust resistance. For specialized engineering projects, we provide high-precision custom machining upgrades in Titanlegering (ideal for strict weight-saving limitations and ultra-deep submersibles) and Naval Brass / Marine Bronze (highly recommended for shallow-water aquaculture due to natural anti-biofouling properties).

Q5: What corporate certifications guarantee the manufacturing quality of HYSF subsea products?

A: HYSF operates under a strictly standardized quality architecture as a certified Technology Enterprise holding over ten core patents. Our facilities are fully audited and certified under the ISO 9001 Quality Management System. Furthermore, our manufacturing workflows, precision production, and raw material tracking records comply directly with the strict GJB 9001C-2017 National Quality Standard, delivering mission-critical durability across national marine defense contractors, top shipyards, and major research institutes like the Chinese Academy of Sciences (CAS).

Kontakt

Jason Liu

Teknisk sjef

HYSF Subsea

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