DIL8F 8-Pin Female Inline Underwater Connector – SubConn Compatible Standard Circular Series
Product Overview
The
HYSF SUBSEA DIL8F 8-Pin Female Inline Underwater Connector is a compact subsea electrical connector designed to provide reliable multi-channel power and signal connections in demanding marine and underwater environments.Featuring eight precision female electrical contacts, a flexible chloroprene rubber connector body, and an integrated underwater cable, the DIL8F provides a practical electrical connection solution for ROVs, AUVs, underwater cameras, marine sensors, subsea instrumentation, and offshore monitoring equipment.As part of the HYSF DIL Circular Connector Series, the DIL8F features a female inline mating interface designed to connect with compatible eight-pin male underwater connectors.Its compact tapered body provides cable strain relief and supports convenient installation in equipment where available space is limited.The DIL8F has a catalog electrical specification of
300V and 3–10A, depending on the selected configuration. It is designed for underwater applications at depths of up to
6,000 meters, with a specified mating durability of more than 500 cycles.The standard connector body is manufactured from high-flex chloroprene rubber, while the shell and coupling nut are made from 316L stainless steel. Titanium construction is available as an alternative.Gold-plated brass contacts provide the electrical mating interface, while Nitrile or Viton/FKM O-rings can be selected according to project requirements.The standard inline cable length is approximately
1 meter, with customized cable lengths, single or double O-ring configurations, shell materials, and mechanical specifications available.The DIL8F is designed to be fully interchangeable with corresponding SubConn Standard Circular DIL and DDC connector interfaces, subject to the specified mating configuration.
Key Features and Benefits
1. Eight-Pin Female Inline Electrical Configuration
The DIL8F features eight female electrical contact positions arranged in a compact circular mating interface.Its eight-pin configuration allows multiple electrical circuits to pass through a single underwater connector, helping simplify cable assemblies and equipment integration.The eight-contact arrangement is suitable for applications requiring combinations of power, control, measurement, and signal connections.Typical applications include:
- Underwater sensor connections
- Marine instrumentation
- ROV auxiliary electrical systems
- Underwater camera connections
- Subsea control circuits
- Marine monitoring equipment
- Acoustic measurement systems
- Multi-channel underwater instruments
The female inline design provides a detachable cable connection for compatible male underwater connectors.Its compact construction is particularly useful for underwater systems requiring multiple electrical circuits without installing several individual connectors.
2. Compact Tapered Inline Design
The DIL8F features a compact tapered inline connector body designed to support flexible cable termination and mechanical strain relief.Its published reference dimensions are:
- Overall connector length: 28 mm
- Coupling diameter: Ø25 mm
The tapered rubber body helps provide a smooth transition between the connector interface and the cable.This design is useful for equipment where connector dimensions, cable routing, and mechanical clearance are important.Potential installation environments include:
- Compact ROV assemblies
- Underwater camera housings
- AUV electronic modules
- Subsea sensor packages
- High-density cable assemblies
- Marine research equipment
The final mechanical clearance should be verified using the approved product drawing, including the mating connector and coupling arrangement.
3. Electrical Rating of 300V and 3–10A
The DIL8F has a catalog electrical specification of
300V / 3–10A.The applicable current rating depends on the selected electrical configuration and operating conditions.This makes the connector suitable for appropriately designed underwater systems involving multiple electrical power, control, and instrumentation circuits.When selecting the DIL8F, engineers should consider:
- Operating voltage
- Continuous operating current
- Contact loading
- Number of simultaneously energized contacts
- Cable conductor cross-sectional area
- Operating temperature
- Voltage drop
- Insulation requirements
- Heat dissipation
The upper current value should not automatically be interpreted as a guaranteed continuous current rating for all eight contacts simultaneously.For applications operating near the electrical limits, the complete connector and cable assembly should be evaluated under the intended operating conditions.
4. Deep-Sea Capability up to 6,000 Meters
The HYSF DIL8F is specified for underwater applications at depths of up to
6,000 meters.This makes it suitable for consideration in demanding subsea systems requiring reliable electrical connections under high hydrostatic pressure.Potential applications include:
- Deep-water ROV systems
- Autonomous underwater vehicles
- Oceanographic research instruments
- Subsea monitoring equipment
- Marine scientific instruments
- Underwater cameras
- Offshore inspection systems
- Deep-sea sensor networks
The complete pressure capability depends on the mating connector, cable configuration, sealing arrangement, and installation conditions.For critical subsea applications, the complete mated assembly should be verified through the applicable pressure qualification and testing procedures.
5. More Than 500 Mating Cycles
The DIL8F has a specified mating durability of more than
500 cycles.This is useful for underwater equipment requiring repeated connection and disconnection during maintenance, testing, deployment, and equipment replacement.Typical applications include:
- Removable underwater sensors
- ROV equipment interfaces
- Modular subsea instrumentation
- Marine research equipment
- Underwater camera systems
- Replaceable cable assemblies
- Offshore inspection equipment
Proper alignment, clean mating surfaces, and correct installation procedures are important for maintaining connector performance over repeated mating cycles.Electrical power should be isolated before mating or unmating unless energized operation has been specifically qualified for the complete assembly.
6. High-Flex Chloroprene Rubber Connector Body
The standard DIL8F features a high-flex chloroprene rubber connector body.Chloroprene rubber is commonly used in marine connector construction because of its flexibility and suitability for demanding environmental conditions.The molded body supports the female electrical contact assembly and cable entry while providing a flexible tapered structure.Its principal advantages include:
- Flexible rubber construction
- Compact connector geometry
- Integrated cable strain relief
- Suitability for marine environments
- Practical installation and handling
- Support for flexible cable routing
The connector body should be inspected periodically for cuts, cracks, deformation, or other visible signs of damage.
7. Gold-Plated Brass Electrical Contacts
The DIL8F uses gold-plated brass electrical contacts.Brass provides a conductive contact base, while gold plating provides a conductive mating surface and helps reduce oxidation.This contact construction supports reliable electrical connections in appropriately designed underwater systems.Gold-plated contacts are particularly useful for marine instrumentation and subsea equipment where stable electrical contact performance is important.The female contact interface should be inspected before mating and kept free from contamination, sand, sediment, and foreign particles.
8. 316L Stainless Steel and Titanium Housing Options
The standard DIL8F shell and coupling nut are manufactured from
316L stainless steel.316L stainless steel offers good corrosion resistance and mechanical strength for marine and underwater applications.Its advantages include:
- Good resistance to marine corrosion
- Durable mechanical construction
- Strong coupling components
- Good dimensional stability
- Suitability for offshore applications
For specialized projects, titanium housing is available as an alternative.Titanium offers an excellent strength-to-weight ratio and strong corrosion resistance in seawater environments.This makes it suitable for applications where weight reduction and long-term material performance are important.The final material should be selected according to the mechanical requirements and environmental conditions of the application.
9. Nitrile and Viton/FKM O-Ring Options
The DIL8F supports different O-ring material configurations.Black Nitrile rubber is the standard O-ring option, while Viton/FKM is available as an alternative.Optional blue or green O-ring colors can also be considered for quick underwater mating identification.The appropriate sealing material should be selected according to:
- Seawater exposure
- Operating temperature
- Chemical compatibility
- Compression requirements
- Long-term material stability
- Maintenance intervals
Both single and double O-ring configurations can be considered according to the selected connector design.The final sealing arrangement should be confirmed before production.
10. Standard One-Meter Cable and Customization
The standard DIL8F inline configuration is supplied with approximately
1 meter of underwater cable.This provides a practical connection length for many ROV, AUV, and underwater instrumentation applications.Customized cable assemblies are available according to project requirements.Possible customization options include:
- Alternative cable lengths
- Customized cable jacket colors
- Customized conductor specifications
- Single or double O-ring configurations
- Customized shell materials
- Customized thread lengths
- Laser marking
- Customized wiring identification
The standard cable jacket is black, with high-visibility orange conductor tips.The final cable construction and pin assignment should be confirmed before production.
11. SubConn-Compatible Standard Circular Interface
The HYSF DIL8F is designed for compatibility with corresponding SubConn Standard Circular DIL and DDC connector interfaces.This makes it suitable for consideration in compatible replacement applications and new underwater equipment designs.Potential uses include:
- Replacement underwater cable connectors
- ROV system upgrades
- Marine instrumentation
- Offshore equipment maintenance
- Subsea cable assemblies
- OEM underwater equipment integration
Compatibility should be verified using the exact connector family, contact configuration, mating dimensions, and coupling arrangement.
DIL8F Technical Specifications
| Parameter | Specification |
|---|
| Brand | HYSF SUBSEA |
| Model | DIL8F |
| Product Type | Female Inline Underwater Connector |
| Connector Series | DIL / Standard Circular |
| Number of Contacts | 8 Pins |
| Contact Gender | Female |
| Rated Voltage | 300V |
| Rated Current | 3–10A, Configuration-Dependent |
| Working Depth | Up to 6,000 Meters |
| Mating Durability | More Than 500 Cycles |
| Contact Resistance | Less Than 0.010 Ω |
| Insulation Resistance | Greater Than 200 MΩ |
| Temperature Rating | -4°C to +60°C |
| Connector Body | High-Flex Chloroprene Rubber |
| Standard Shell Material | 316L Stainless Steel |
| Optional Shell Material | Titanium |
| Contact Material | Gold-Plated Brass |
| Standard O-Ring | Nitrile |
| Optional O-Ring | Viton / FKM |
| O-Ring Color Options | Black / Blue / Green |
| Locking Sleeve | POM |
| Standard Cable Length | 1.0 Meter |
| Overall Connector Length | 28 mm |
| Coupling Diameter | Ø25 mm |
| Cable Jacket | Black, Custom Colors Available |
| Standard Conductor Identification | 8 Individual Wire Colors |
| Primary Male Inline Mating Connector | DIL8M |
| Compatibility | Corresponding SubConn Standard Circular DIL / DDC |
| Customization | Cable Length, O-Ring, Shell Material and Thread Length |
| Warranty | 12 Months |
Engineering Note: The electrical ratings are configuration-dependent. Verify the exact current requirements, mating compatibility, mechanical dimensions, cable construction, and pressure qualification against the approved technical documentation before system integration.
Eight-Pin Wiring and Conductor Identification
The DIL8F standard inline cable uses eight individually identified conductors.The standard conductor color arrangement is:
| Pin Number | Standard Wire Color |
|---|
| Pin 1 | Black |
| Pin 2 | White |
| Pin 3 | Red |
| Pin 4 | Green |
| Pin 5 | Orange |
| Pin 6 | Blue |
| Pin 7 | White / Black |
| Pin 8 | Red / Black |
This identification arrangement helps simplify installation, electrical testing, and subsea equipment maintenance.
Recommended Wiring Verification
Before integrating the DIL8F into an underwater electrical system:
- Confirm the connector contact numbering.
- Verify the mating-face orientation.
- Identify all eight conductors.
- Check the pin-to-wire mapping against the approved wiring diagram.
- Perform electrical continuity testing.
- Check for unintended shorts between contacts.
- Confirm the required power, signal, and ground assignments.
The standard wire colors provide a reference only. Customized cable assemblies should follow their approved production wiring diagrams.
Compatible Connectors and Accessories
DIL8M – 8-Pin Male Inline Underwater Connector
The
DIL8M is the corresponding male inline connector in the HYSF DIL Circular Series.It is designed to mate with the DIL8F female inline connector to establish a detachable cable-to-cable underwater electrical connection.Typical applications include:
- Subsea cable extensions
- ROV cable assemblies
- Underwater instrumentation
- Detachable marine equipment
- Multi-channel electrical connections
Typical connection:DIL8M Male Inline + DIL8F Female InlineThis combination provides an eight-contact electrical connection between compatible underwater cable assemblies.
Compatible Male Bulkhead Connector
For applications requiring a cable-to-bulkhead connection, select a compatible eight-pin male bulkhead connector from the corresponding Standard Circular interface family.The exact model should be confirmed against the approved mating drawing.The bulkhead connector provides a fixed electrical interface through the equipment housing, while the DIL8F provides the removable cable-mounted connection.
DDC8M – Male Protective Dummy Plug
A compatible male dummy plug can be selected to protect unused female connector interfaces when the operational cable is disconnected.The exact protective model should be selected according to the female interface geometry and approved mating configuration.A dummy plug is a protective accessory and does not provide functional electrical transmission.
Typical Applications of DIL8F
1. Remotely Operated Vehicles (ROVs)
ROVs use multiple underwater electrical connectors for sensors, cameras, lighting, and auxiliary equipment.The DIL8F provides an eight-pin female inline interface for suitable electrical circuits in compact ROV cable assemblies.
2. Autonomous Underwater Vehicles (AUVs)
AUVs frequently use modular electronic systems and external instruments.The DIL8F can provide a detachable multi-channel electrical interface for suitable underwater equipment.
3. Underwater Cameras and Imaging Systems
Underwater camera systems may require multiple electrical connections for power, control, and auxiliary functions.The DIL8F can be integrated into compatible underwater camera cable assemblies.Actual video transmission capability depends on the complete cable design and signal requirements.
4. Sensors and Instrumentation
Marine sensors often require several electrical conductors for measurement, power, and control.The eight-pin configuration provides flexibility for suitable sensor interfaces, including CTD equipment, sonar systems, and hydrophones.
5. Diver Communication Systems
Underwater communication equipment may require multi-conductor connections for suitable audio, power, and auxiliary circuits.The DIL8F can be considered for appropriately designed marine communication systems.
6. Offshore Energy and Subsea Control
Offshore equipment requires reliable electrical connections for monitoring, instrumentation, and control systems.The DIL8F can be integrated into suitable subsea electrical assemblies operating within its approved specifications.
7. Oceanographic Research Equipment
Marine research instruments frequently require detachable cable connections for sensors and measurement equipment.The DIL8F provides an eight-pin female interface suitable for compatible underwater research applications.
Installation Guidelines
Step 1: Verify Connector Compatibility
Confirm that the mating connector is a compatible eight-pin male interface, such as DIL8M.
Step 2: Inspect the Mating Interfaces
Check the electrical contacts, rubber body, O-rings, and cable entry for contamination or visible damage.
Step 3: Verify the Wiring
Confirm all eight conductor assignments using the approved wiring diagram.
Step 4: Align the Connectors
Align the mating interfaces according to the approved connector orientation.Avoid forcing the connector into an incorrect position.
Step 5: Complete the Mating Operation
Secure the connector using the approved coupling and locking arrangement.
Step 6: Perform Electrical Checks
Verify continuity and insulation resistance according to the application requirements.
Step 7: Verify the Complete Assembly
Before underwater deployment, confirm that the connector, mating component, cable, and installation meet the required electrical and pressure specifications.
Quality Control and Testing
Depending on the ordered configuration and project requirements, HYSF SUBSEA quality-control procedures may include:
- Visual inspection
- Dimensional verification
- Contact inspection
- Electrical continuity testing
- Insulation resistance measurement
- Contact resistance measurement
- Cable identification checks
- Mating compatibility verification
- O-ring inspection
- Hydrostatic pressure testing
- Dielectric withstand testing where applicable
The required test procedures and acceptance criteria should be established according to the approved connector configuration and intended operating environment.
Frequently Asked Questions
Q1: What is the DIL8F underwater connector?
The DIL8F is an eight-pin female inline underwater electrical connector designed for multi-channel power, control, and signal connections.
Q2: What is the rated voltage?
The listed rated voltage is 300V.
Q3: What is the rated current?
The listed electrical specification is 3–10A, depending on the selected configuration.
Q4: What is the maximum working depth?
The DIL8F is specified for applications up to 6,000 meters, subject to the complete assembly configuration and qualification.
Q5: What is the standard cable length?
The standard inline cable length is approximately 1 meter.
Q6: Can the cable length be customized?
Yes. Alternative cable lengths and customized cable assemblies are available according to project requirements.
Q7: What is the connector body material?
The connector body is manufactured from high-flex chloroprene rubber.
Q8: What material are the electrical contacts made from?
The contacts are gold-plated brass.
Q9: What shell materials are available?
The standard shell and coupling nut are made from 316L stainless steel. Titanium is available as an alternative.
Q10: Which connector mates with DIL8F?
The primary male inline mating connector is DIL8M.
Q11: What are the dimensions of DIL8F?
The published overall connector length is 28 mm, with a coupling diameter of approximately 25 mm.
Q12: What is the standard wire color arrangement?
Pin 1 Black, Pin 2 White, Pin 3 Red, Pin 4 Green, Pin 5 Orange, Pin 6 Blue, Pin 7 White/Black, and Pin 8 Red/Black.
Q13: Is DIL8F compatible with SubConn?
Yes. The DIL8F is designed to be interchangeable with corresponding SubConn Standard Circular DIL and DDC connector interfaces.
Q14: Can the O-ring configuration be customized?
Yes. Single or double O-ring configurations are available. Nitrile is standard, while Viton/FKM is available as an alternative.
Q15: Can the O-ring color be customized?
Yes. Black is standard, while blue and green options can be considered for mating identification.
Q16: Is the DIL8F suitable for Ethernet?
The eight-pin contact configuration can support suitable multi-conductor electrical and data applications. However, Ethernet compatibility and transmission speed must be verified using the complete cable, pin assignment, impedance, and signal-integrity specifications.
Q17: What is the warranty period?
The standard HYSF SUBSEA product warranty is 12 months, subject to the applicable warranty terms.
Why Choose HYSF SUBSEA DIL8F?
The
HYSF SUBSEA DIL8F 8-Pin Female Inline Underwater Connector provides a compact and versatile electrical connection solution for demanding marine and subsea applications.Its principal advantages include:
- Eight-pin female inline configuration
- Compact tapered connector design
- 28 mm overall connector length
- Ø25 mm coupling diameter
- 300V rated voltage
- 3–10A electrical rating, configuration-dependent
- Design depth capability up to 6,000 meters
- More than 500 specified mating cycles
- High-flex chloroprene rubber body
- Gold-plated brass electrical contacts
- 316L stainless steel shell
- Optional titanium construction
- Nitrile or Viton/FKM O-ring options
- Single or double O-ring configurations
- Standard 1-meter cable
- Customized cable lengths and cable colors
- Compatibility with corresponding SubConn Standard Circular DIL/DDC interfaces
- 12-month product warranty
For ROV manufacturers, AUV developers, marine research organizations, and underwater equipment manufacturers, the DIL8F provides a practical solution for integrating multiple electrical circuits into a compact underwater cable assembly.Its flexible rubber construction, corrosion-resistant metal components, and customizable cable configuration make it suitable for a wide range of appropriately designed subsea electrical systems.
