Quick Answer: HYSF 8-pin underwater connectors (MCBH8M/MCBH8F) support multi-channel sensor systems with mixed signal and power configurations. Available in stainless steel, titanium, or aluminum housing with depth ratings from 100m to 6000m. Standard delivery is 3-5 days for stock configurations, with academic/research pricing available.
Detailed Explanation
8-pin underwater connectors are ideal for complex subsea applications requiring multiple signal channels, power lines, or mixed configurations. This guide covers everything you need to know about selecting the right 8-pin connector for your multi-channel sensor system.
8-Pin Connector Applications
Common applications for 8-pin underwater connectors include:
| Application | Typical Pin Assignment | Industry |
|---|---|---|
| Multi-parameter Sensors | 4x signal + 4x power | Oceanographic research |
| Underwater Cameras | 2x video + 2x control + 4x power | ROV/Inspection |
| Data Acquisition Systems | 6x data channels + 2x power | Scientific research |
| Hydrophone Arrays | 8x audio channels | Acoustic monitoring |
| CTD Instruments | 3x sensor + 2x comms + 3x power | Marine research |
MCBH8 Series Specifications
The MCBH8 series is HYSF’s most popular 8-pin underwater connector family:
| Specification | MCBH8 Series |
|---|---|
| Pin Count | 8 pins |
| Thread Size | 5/8″-18 UNF-2A |
| Current Rating | 5A per contact (standard), up to 30A (power pins) |
| Voltage Rating | Up to 600V |
| Insulation Resistance | ≥1000 MΩ @ 500V DC |
| Contact Resistance | ≤10 mΩ |
| Depth Rating | 100m, 300m, 1000m, 3000m, 6000m |
| Housing Materials | 316L Stainless Steel (standard), Titanium, Aluminum Alloy |
| Sealing | Double O-ring (standard) |
| Temperature Range | -40°C to +85°C |
Pin Configuration Options
HYSF 8-pin connectors support flexible pin assignments for mixed signal and power applications:
Standard Configurations
- All Signal: 8x signal pins (RS232, RS485, Ethernet, analog)
- Mixed (4+4): 4x signal + 4x power (common for powered sensors)
- Mixed (6+2): 6x signal + 2x power (data acquisition)
- Mixed (2+6): 2x signal + 6x power (power-intensive devices)
- All Power: 8x power pins (high-current applications)
Custom Pin Assignments
For research and custom applications, HYSF can configure pin assignments to match your specific requirements:
- Specify pin-by-pin requirements (e.g., Pin 1-3: RS485, Pin 4-5: 12V power, Pin 6-8: analog signals)
- Provide wiring diagram or pinout table
- We’ll configure connectors accordingly and provide test reports
Connector Pairing Guide
Complete underwater connection systems require mating connector pairs:
| Configuration | Male Part | Female Part | Application |
|---|---|---|---|
| Inline Connection | MCIL8M (inline male) | MCIL8F (inline female) | Cable-to-cable connection |
| Panel Mount | MCBH8M (bulkhead male) | MCBH8F (bulkhead female) | Sensor housing penetration |
| Cable to Sensor | MCBH8M (bulkhead male) | Cable assembly with female | Most common for instruments |
Material Selection for Research Applications
| Material | Depth Rating | Corrosion Resistance | Cost | Best For |
|---|---|---|---|---|
| Aluminum Alloy | Up to 100m | Good (anodized) | $ | Freshwater, pool testing, budget projects |
| 316L Stainless Steel | Up to 3000m | Excellent | $$ | Seawater research, most applications (recommended) |
| Titanium Alloy | Up to 6000m | Superior | $$$ | Deep sea research, extreme environments |
Cable Assembly Options
HYSF provides complete 8-pin cable assembly solutions:
Standard Cable Configurations
- Length: 5m, 10m, 15m (standard), custom 1-100+ meters
- Conductor Size: 0.5mm² (signal), 1.0-2.5mm² (power)
- Cable Type: Multi-conductor shielded cable (8+ conductors)
- Jacket Material: PU (polyurethane) or TPU
- Termination: Male or female connector on cable end
Custom Cable Assemblies
For research instruments, we can customize:
- Exact cable length (any length from 1 to 100+ meters)
- Mixed conductor sizes (e.g., 4x 0.5mm² for signal + 4x 1.5mm² for power)
- Special jacket materials (chemical resistant, low-temperature flexible)
- Overmolding and strain relief
- Labeling and documentation
Research and Academic Pricing
HYSF offers special pricing for universities, research institutions, and educational projects:
Academic Discount Program
- Discount: 10-20% off standard pricing for qualified institutions
- Eligibility: Universities, research labs, government institutions, non-profits
- Verification: Provide institutional email or documentation
- Sample Orders: Special pricing for evaluation samples
Small Quantity Orders
We understand research projects often need small quantities:
- No MOQ: Order as few as 1-2 pieces
- Prototype Support: Special pricing for development projects
- Fast Turnaround: 3-5 days for standard configurations
- Documentation: Full test reports and certificates included
Typical Lead Times
| Product Type | Quantity | Lead Time | Rush Available |
|---|---|---|---|
| Standard 8-pin connectors | 1-10 pcs | 3-5 days | Yes (24-48h) |
| Custom cable assemblies | 1-10 pcs | 7-10 days | Yes (5-7 days) |
| Titanium housing | Any | 15-20 days | No |
| Bulk orders | 50+ pcs | 2-3 weeks | Case by case |
International Shipping to Research Institutions
HYSF ships 8-pin connectors and cable assemblies worldwide:
| Region | Shipping Method | Delivery Time | Freight Cost (Example) |
|---|---|---|---|
| South America (e.g., Brazil) | DHL Express | 4-7 days | $100-180 (small packages) |
| North America | DHL/FedEx | 4-6 days | $80-150 (small packages) |
| Europe | DHL Express | 3-5 days | $80-150 (small packages) |
| Asia Pacific | DHL Express | 2-4 days | $50-100 (small packages) |
How to Order 8-Pin Connectors
To receive a quote with academic pricing:
- Specify Connector Type: MCIL8M/MCIL8F (inline) or MCBH8M/MCBH8F (bulkhead)
- Pin Configuration: All signal, mixed, or custom pinout
- Housing Material: Stainless steel (standard), titanium, or aluminum
- Depth Rating: Based on your maximum operating depth
- Cable Requirements: Length, conductor size, jacket type
- Quantity: Number of pieces needed
- Institution Type: University, research lab, or commercial
- Delivery Address: For freight calculation
Example Inquiry:
“We need 2 sets of 8-pin underwater connectors for oceanographic research. Configuration: MCBH8M bulkhead male + cable assembly with female connector, 10 meters length, stainless steel housing, 300m depth rating. Please quote with academic pricing and freight to Florianópolis, Brazil.”
Response Time: Complete quotation within 24-48 hours including academic discount and freight options
Contact: info@hysfsubsea.com
Quality Documentation for Research
All HYSF connectors for research applications include:
- Test Reports: Continuity, insulation resistance, hi-pot test results
- Material Certificates: Housing material certification (SS316L, titanium, etc.)
- Dimensional Drawings: Detailed technical drawings for integration
- Assembly Instructions: Proper installation and mating procedures
- Warranty: 12-month warranty against manufacturing defects
Need 8-pin underwater connectors for your research project? Contact us with your specifications and we’ll provide competitive academic pricing with full documentation within 24-48 hours.









