MCIL16M 16-Pin Male Inline Underwater Connector | HYSF SUBSEA

MCIL16M 16-Pin Male Inline Underwater Connector – High-Density Subsea Electrical Connection

The HYSF SUBSEA MCIL16M 16-Pin Male Inline Underwater Connector is a compact, high-density, wet-mateable electrical connector designed for reliable power and signal transmission in demanding subsea environments. Featuring 16 male electrical contacts, a durable marine-grade molded body, and an integrated underwater cable, the MCIL16M provides a practical connection solution for remotely operated vehicles (ROVs), autonomous underwater vehicles (AUVs), oceanographic instruments, underwater sensors, marine monitoring systems, and offshore equipment.As part of the HYSF SUBSEA Micro Circular connector family, the MCIL16M is engineered for applications requiring multiple electrical circuits within a space-efficient connector interface.The connector combines gold-plated electrical contacts with a molded underwater cable termination to support stable electrical performance and dependable environmental sealing.Designed for deep-sea applications, the Micro Circular series supports pressure resistance up to 60 MPa, equivalent to approximately 6,000 meters of seawater depth, subject to the approved connector assembly and operating conditions.The MCIL16M is supplied with a standard 1-meter cable. Customized cable lengths, conductor configurations, shielding arrangements, and application-specific wiring are also available for OEM underwater equipment manufacturers.For engineers searching for a 16-pin male underwater connector, SubConn-compatible Micro Circular connector, deep-sea electrical cable connector, or high-density subsea connector, the MCIL16M provides a versatile solution for marine electrical integration.

Key Features of the MCIL16M Underwater Connector

• 16-pin male electrical configuration: Provides 16 individual contacts for multi-channel power and signal connections.
• Compact Micro Circular design: Suitable for underwater equipment with limited installation space.
• Deep-water capability: Designed for pressures up to 60 MPa in approved configurations.
• Wet-mateable interface: Supports underwater mating and demating under specified operating conditions.
• Gold-plated electrical contacts: Help maintain stable conductivity and reliable contact performance.
• Marine-grade molded connector body: Provides protection against seawater exposure and environmental stress.
• Standard 1-meter cable: Convenient for underwater equipment integration.
• Custom cable assemblies: Alternative lengths, wiring arrangements, and cable constructions are available.
• High-density electrical interface: Combines multiple electrical circuits into a single compact connection.
• Multiple mating options: Designed to mate with corresponding 16-pin female Micro Circular connectors.
• OEM engineering support: Suitable for customized subsea equipment and marine instrumentation projects.

MCIL16M Technical Specifications

Parámetro	Specification
Brand	HYSF SUBSEA
Model Number	MCIL16M
Tipo de producto	Male Inline Underwater Electrical Connector
Connector Series	Micro Circular
Número de contactos	16
Contact Gender	Male
Standard Cable Length	1 Meter
Rated Current	5A per Contact
Series Operating Voltage	Up to 550V AC/DC, subject to configuration approval
Maximum Design Pressure	Up to 60 MPa
Approximate Depth Capability	Up to 6,000 Meters
Connector Body	Marine-Grade Molded Neoprene Rubber
Contact Finish	Gold-Plated
Mating Connector Models	MCBH16F / MCIL16F
Connection Type	Wet-Mateable
Cable Customization	Available
Aplicaciones típicas	ROVs, AUVs, Sensors, Marine Instruments, Subsea Control Systems

Technical Note: The final voltage, current, working depth, and mechanical specifications must be confirmed for the exact connector and cable assembly. Current ratings should not be interpreted as permission to operate all contacts at their individual maximum simultaneously without a thermal and electrical design review.

Compact 16-Pin Design for High-Density Underwater Systems

Modern subsea equipment often requires multiple electrical connections for sensors, control circuits, auxiliary devices, and monitoring systems.When several individual connectors are installed, the equipment may require additional mounting space, more cable routing, and multiple waterproof interfaces.The MCIL16M simplifies electrical integration by combining 16 individual electrical contacts into one compact connector.This arrangement allows engineers to route multiple low-power and signal circuits through a single detachable connection point.For example, a subsea monitoring instrument may require electrical connections for sensor excitation, analog measurements, communication signals, control functions, reference voltages, and auxiliary equipment.The 16-pin configuration provides flexibility for organizing these circuits according to the system’s electrical requirements.Compared with lower-contact-count connectors, a 16-pin underwater connector can help reduce the total number of external connection interfaces in complex marine equipment.This is particularly valuable for compact ROVs, AUVs, underwater cameras, and scientific instruments where enclosure space and cable management are important considerations.

Reliable Performance in Deep-Sea Environments

Underwater electrical connectors must operate under environmental conditions that are significantly different from ordinary industrial applications.Seawater exposure, hydrostatic pressure, mechanical handling, and long-term immersion can affect connector materials and electrical interfaces.The HYSF SUBSEA MCIL16M is designed for use in demanding underwater environments.Its molded connector body protects the cable termination, while the mating interface is designed to form a watertight connection with the corresponding female connector.The Micro Circular series includes configurations designed for pressure resistance up to 60 MPa, corresponding to approximately 6,000 meters of seawater depth.This makes the MCIL16M suitable for consideration in deep-sea research equipment, underwater robotic platforms, marine instrumentation, and offshore monitoring systems.However, actual working depth depends on the complete assembly, including the mating connector, cable construction, termination design, sealing arrangement, and relevant qualification testing.For critical subsea applications, the entire connector and cable assembly should be verified against the project’s operating pressure and environmental requirements.

Gold-Plated Contacts for Stable Electrical Transmission

Electrical contact performance is essential for subsea systems that transmit multiple low-level signals or control circuits through one connection interface.The MCIL16M features gold-plated male electrical contacts designed for stable electrical mating performance.Gold plating provides a conductive contact surface and helps resist contact-surface oxidation.These characteristics are particularly valuable in marine applications requiring dependable electrical connections over repeated equipment installation and maintenance cycles.The 16 electrical contacts can be assigned to different functions according to project requirements.Possible applications include:

• Sensor power supply
• Analog measurement signals
• Digital control circuits
• Equipment status monitoring
• Auxiliary DC power connections
• Instrument reference and return connections
• Customized subsea signal interfaces

The suitability of any specific circuit depends on its current, voltage, shielding, grounding, and cable requirements.For high-speed Ethernet or other controlled-impedance applications, the complete connector and cable assembly should be specifically designed and tested for the required communication performance.A 16-pin contact arrangement alone does not establish Ethernet compliance.

Wet-Mateable Underwater Connector Technology

The MCIL16M belongs to the HYSF SUBSEA wet-mateable Micro Circular connector family.Wet-mateable connectors are designed to allow mating and demating in submerged conditions when the applicable operating procedures and limitations are followed.This functionality is useful for marine equipment requiring modular installation, underwater servicing, or replacement of connected instruments.For example, underwater robotic systems may require removable sensors or auxiliary modules that are connected through detachable cable assemblies.A wet-mateable connector can simplify these arrangements by providing a dedicated underwater mating interface.Before connecting the MCIL16M, the contact interface should be inspected for contamination, damage, and incorrect alignment.The connector must be mated with the appropriate female connector and secured using the specified retention components.Electrical power should be isolated before mating or demating unless the complete connector assembly has been specifically qualified for live operation.

MCIL16M Compatible Mating Connectors

The MCIL16M is a 16-pin male inline underwater connector.It is designed to mate with corresponding female Micro Circular connectors having the correct contact arrangement and mechanical interface.HYSF SUBSEA offers several compatible connector configurations.

MCBH16F – 16-Pin Female Bulkhead Connector

The MCBH16F is a female bulkhead underwater connector designed for installation through marine equipment housings, pressure enclosures, and instrument panels.When paired with the MCIL16M, it forms a detachable cable-to-equipment connection.This configuration is suitable for ROV housings, AUV electronics compartments, underwater sensor enclosures, and marine monitoring instruments.

MCIL16F – 16-Pin Female Inline Connector

The MCIL16F is a female cable-mounted underwater connector.Paired with the MCIL16M, it creates a detachable cable-to-cable connection.This arrangement can be used for underwater extension cables, removable equipment harnesses, and customized subsea cable assemblies.

MCDC16F – Female Protective Dummy Plug

When the MCIL16M is disconnected from its mating connector, the MCDC16F can be used as a protective accessory for the male mating interface.The dummy plug helps protect the connector from debris, contamination, and handling damage during storage or equipment maintenance.

SubConn and SEACON Compatibility

HYSF SUBSEA Micro Circular connectors are designed to provide compatible alternatives for established subsea electrical connector interfaces, including corresponding SubConn and SEACON configurations.The MCIL16M can be considered for replacement and integration applications where the required 16-pin mating interface matches the HYSF SUBSEA design.However, compatibility should be verified before installation.Even connectors with the same number of contacts may have differences in contact numbering, polarization, locking arrangements, and mechanical dimensions.For equipment using an existing SubConn or SEACON connector, engineers should confirm:

1. Connector series
2. Male and female configuration
3. Contact arrangement
4. Pin numbering
5. Mating dimensions
6. Retention method
7. Electrical requirements
8. Cable wiring

The MCIL16M belongs to the Micro Circular family and should not be confused with a Standard Circular or dedicated Ethernet connector.

Applications of the MCIL16M 16-Pin Underwater Connector

1. Remotely Operated Vehicles (ROVs)

ROVs commonly incorporate cameras, sensors, control electronics, and auxiliary devices requiring several electrical connections.The MCIL16M enables multiple circuits to be integrated into one compact underwater cable interface.It is suitable for customized ROV harnesses, modular tools, and external instrument connections where the electrical ratings meet the equipment requirements.

2. Autonomous Underwater Vehicles (AUVs)

AUV manufacturers must balance electrical functionality, weight, and available installation space.The MCIL16M provides a high-density connection option for sensor modules, monitoring systems, and auxiliary equipment.Its detachable interface supports modular installation and maintenance.

3. Oceanographic Instruments

Marine scientific instruments often require several electrical circuits for environmental monitoring and data acquisition.The 16-contact configuration can accommodate multiple sensor channels or auxiliary connections within one underwater connector.This makes it suitable for oceanographic research instruments and specialized subsea measurement systems.

4. Sonar and Hydrophone Systems

Underwater acoustic equipment may require multiple signal and control connections between external sensors and internal electronics.The MCIL16M can be used in customized acoustic instrumentation where its electrical and mechanical characteristics meet the system requirements.Appropriate cable shielding and grounding should be considered for sensitive signals.

5. Underwater Cameras and Imaging Equipment

Underwater camera systems may require connections for power, control signals, lighting functions, and auxiliary sensors.The MCIL16M can be integrated into customized imaging equipment cable assemblies.Digital video communication requirements should be evaluated separately, especially when controlled-impedance transmission is required.

6. Offshore Monitoring and Marine Research

The connector is also suitable for offshore observation systems, subsea monitoring stations, marine research platforms, and other equipment requiring multiple detachable electrical circuits.

Standard 16-Pin Cable Wiring Identification

Accurate pin identification is essential when working with high-density underwater connectors.The HYSF SUBSEA Micro Circular 16-pin series uses the following standard cable wire color reference:

Pin Number	Wire Color
1	Red
2	Red/White
3	Black
4	Black/White
5	Yellow
6	Yellow/White
7	Blue
8	Blue/White
9	Orange
10	Orange/White
11	Brown
12	Brown/White
13	Purple
14	Purple/White
15	Green
16	Green/White

This is a series wiring reference. The actual wire colors and pin assignments for a supplied assembly should always be confirmed against its approved wiring diagram.Customized cable constructions may use different colors, conductor arrangements, or identification methods.

Custom MCIL16M Underwater Cable Assemblies

HYSF SUBSEA supports customized MCIL16M cable assemblies for OEM underwater equipment manufacturers.The standard configuration includes a 1-meter cable.Depending on the project requirements, alternative cable lengths and conductor arrangements can be specified.Customization options may include:

• Different cable lengths
• Cable outer diameter
• Conductor size
• Cable jacket material
• Shielded or unshielded cable construction
• Customized wire color identification
• Pin-to-wire assignments
• Male-to-female cable assemblies
• Open-ended cable terminations
• Equipment-specific cable harness designs

For complex subsea systems, a detailed wiring diagram is recommended before production.The drawing should identify the connector orientation, pin numbers, conductor colors, shielding connections, and required cable termination details.This documentation supports accurate manufacturing and simplifies equipment integration.

Installation and Maintenance Guidelines

Correct installation helps maintain dependable electrical and waterproof performance.Before mating the MCIL16M:

1. Verify the mating connector model.
2. Confirm the approved pin assignment.
3. Inspect the male contact interface.
4. Check the molded body and cable for damage.
5. Remove debris or contamination from the mating area.
6. Align the connectors correctly.
7. Mate the connector without excessive force.
8. Secure the connection using the specified retention components.

Avoid pulling directly on the cable when disconnecting the connector.Excessive cable bending near the molded termination should also be avoided.After seawater use, follow the recommended cleaning and inspection procedures.When the connector is disconnected, a suitable protective dummy plug can help shield the exposed mating interface.

Quality Control and Testing

Underwater connector performance depends on both connector manufacturing quality and correct cable assembly.Depending on the project requirements, relevant inspection and testing procedures may include:

• Electrical continuity testing
• Insulation resistance testing
• Dielectric withstand testing
• Contact inspection
• Cable termination verification
• Visual inspection
• Hydrostatic pressure testing
• Final wiring verification

For customized assemblies, the completed cable should be checked against the approved wiring diagram.Additional testing requirements can be specified according to the equipment’s intended operating environment.

Frequently Asked Questions

Is the MCIL16M a male or female connector?

The MCIL16M is a 16-pin male inline underwater connector with 16 male electrical contacts and an integrated cable.

Which connectors mate with MCIL16M?

The corresponding HYSF SUBSEA female models include MCBH16F y MCIL16F.

What is the standard cable length?

The standard MCIL16M configuration includes a 1-meter cable. Custom lengths are available.

Can the MCIL16M be used at 6,000 meters underwater?

The Micro Circular series includes configurations designed for pressure resistance up to 60 MPa. The complete mated assembly must be qualified for the intended operating depth.

Is the MCIL16M compatible with SubConn?

The HYSF SUBSEA Micro Circular series is designed for compatibility with corresponding SubConn-style interfaces. Exact dimensions, contact arrangement, and wiring should be verified for the specific 16-pin configuration.

Is the MCIL16M wet-mateable?

Yes. It belongs to the wet-mateable Micro Circular connector family. Appropriate operating procedures must be followed.

Can the MCIL16M transmit power and signals?

Yes. Its 16 contacts can be assigned to suitable power, signal, and control circuits within the approved electrical ratings.

Can the cable be customized?

Yes. HYSF SUBSEA supports customized cable lengths, conductor configurations, pin assignments, and specialized OEM cable assemblies.

Why Choose the HYSF SUBSEA MCIL16M?

The HYSF SUBSEA MCIL16M 16-Pin Male Inline Underwater Connector combines a compact high-density contact arrangement with marine-grade construction and customizable cable options.Its 16 male contacts provide flexibility for connecting multiple electrical circuits through one subsea interface.Designed for demanding marine environments, the MCIL16M is suitable for ROVs, AUVs, underwater sensors, oceanographic instruments, marine monitoring platforms, and customized subsea control equipment.Combined with the appropriate female mating connector and an assembly qualified for the intended application, the MCIL16M provides a practical solution for reliable underwater electrical connectivity.