MCILRA12F 12-Pin Female Right-Angle Inline Underwater Connector – Micro Circular L-Type Series

Product Overview

The HYSF SUBSEA MCILRA12F 12-Pin Female Right-Angle Inline Underwater Connector is a compact subsea electrical connector designed for underwater equipment requiring multiple electrical connections and space-efficient cable routing.Belonging to the HYSF Micro Circular Right-Angle Connector Series, the MCILRA12F features twelve female electrical contacts, a molded neoprene rubber body, and an integrated 90-degree L-shaped cable exit.Unlike conventional straight inline underwater connectors, its right-angle configuration directs the cable sideways from the connector mating interface. This design helps reduce installation clearance requirements and simplifies cable routing in compact underwater equipment.With twelve electrical contact positions, the MCILRA12F provides a practical interface for multiple power, signal, control, and instrumentation circuits.The connector is designed for demanding subsea environments, with a specified pressure capability of up to 60 MPa (approximately 6,000 meters of seawater depth).Its construction combines gold-plated electrical contacts with a flexible neoprene rubber body, making it suitable for ROVs, AUVs, underwater cameras, sonar systems, marine sensors, and subsea electronic assemblies.The MCILRA12F is particularly useful for underwater equipment where connector density, installation clearance, and controlled cable routing are important design considerations.

Key Features and Benefits

1. Twelve-Pin Female Electrical Configuration

The MCILRA12F features twelve female electrical contact positions arranged in a compact Micro Circular connector interface.Its twelve-pin configuration allows multiple electrical circuits to pass through a single underwater connection, helping simplify cable assemblies and reduce the number of individual connectors required.Typical applications include:

• Multi-channel underwater sensors
• ROV control and instrumentation
• AUV navigation systems
• Sonar and hydrophone equipment
• Underwater camera systems
• Marine data acquisition
• Subsea monitoring equipment
• Multi-channel electrical assemblies

The female contact arrangement is designed to mate with the corresponding MCILRA12M male connector.The twelve contact positions provide flexibility for allocating power, signal, measurement, and control circuits according to the approved wiring diagram.

2. 90-Degree Right-Angle L-Shaped Cable Exit

One of the main advantages of the MCILRA12F is its integrated right-angle cable configuration.Its L-shaped design directs the cable approximately 90 degrees away from the connector mating axis.This is particularly useful when conventional straight inline connectors require excessive installation clearance.Key advantages include:

• Reduced axial installation clearance
• Controlled cable routing
• Improved integration in compact housings
• Reduced interference with adjacent components
• More organized cable management
• Greater flexibility in equipment layout

The right-angle configuration is especially beneficial for compact ROVs, AUV electronics, underwater sensor modules, and equipment with multiple closely spaced connector ports.For equipment manufacturers, this design provides additional flexibility when planning cable exits around pressure housings and mechanical structures.

3. Twelve-Channel Electrical Connectivity

Twelve electrical contacts provide substantial connection capacity within a compact underwater connector.This makes the MCILRA12F suitable for systems requiring multiple independent electrical circuits through a single connection point.Depending on the approved wiring configuration, individual contacts can be allocated to:

• Sensor power
• Measurement signals
• Control circuits
• Auxiliary power
• Instrumentation
• Communication interfaces
• Monitoring equipment

Consolidating multiple circuits into one connector can simplify cable management and reduce the number of bulkhead interfaces required on an equipment housing.For sensitive signal applications, cable shielding, conductor arrangement, impedance, and electrical isolation requirements should be evaluated separately.

4. Electrical Rating of 5A Per Contact

The HYSF Micro 10–16 Pin series specifies a rated current of 5A per contact.This provides an electrical design reference for applications requiring multiple power and signal connections.The applicable current capacity depends on the complete electrical configuration and operating conditions.When selecting the MCILRA12F, engineers should consider:

• Continuous operating current
• Number of simultaneously energized contacts
• Cable conductor cross-sectional area
• Operating temperature
• Voltage drop
• Contact loading
• Heat dissipation
• Electrical insulation requirements

The 5A-per-contact series rating should not automatically be interpreted as a guaranteed continuous current rating for all twelve contacts simultaneously.The complete connector and cable assembly should be evaluated for applications operating near the electrical limits.

5. Deep-Sea Pressure Capability up to 6,000 Meters

The HYSF MCILRA12F is designed for underwater applications at pressures of up to 60 MPa, corresponding to approximately 6,000 meters of seawater depth.This makes it suitable for consideration in demanding deep-sea electrical systems.Potential applications include:

• Deep-water ROV systems
• Autonomous underwater vehicles
• Oceanographic research instruments
• Subsea monitoring systems
• Marine scientific equipment
• Underwater cameras
• Offshore inspection equipment
• Deep-sea sensor networks

The actual operating depth depends on the complete connector assembly, mating component, cable construction, sealing arrangement, and installation conditions.For critical applications, the complete mated assembly should be verified through appropriate hydrostatic pressure testing and engineering qualification.

6. Gold-Plated Electrical Contacts

The MCILRA12F features gold-plated electrical contacts designed for reliable electrical mating in underwater applications.Gold plating provides a conductive contact surface and helps reduce oxidation at the electrical interface.The contact construction supports suitable multi-channel power and signal connections.The female contact interface should be kept clean and inspected before mating to prevent contamination from affecting electrical contact performance.Correct alignment during mating is important to protect the electrical contacts and maintain reliable connections.

7. Flexible Neoprene Rubber Connector Body

The standard MCILRA12F features a molded neoprene rubber connector body.Neoprene is commonly used in underwater connector construction because of its flexibility and suitability for marine environments.Its molded construction supports the electrical contact assembly and cable entry while providing a compact and flexible connector structure.Key benefits include:

• Flexible rubber construction
• Compact connector geometry
• Suitability for marine environments
• Integrated cable support
• Practical installation and handling
• Resistance to routine mechanical wear

The connector body should be inspected periodically for cuts, cracks, deformation, or other visible signs of damage.

8. Flexible Cable Configuration and Customization

The MCILRA12F is an inline cable connector designed for integration into customized underwater cable assemblies.Cable length and conductor specifications can be selected according to the equipment requirements.Available customization options include:

• Alternative cable lengths
• Customized cable specifications
• Different conductor arrangements
• Customized wire identification
• Cable jacket options
• Customized electrical configurations
• Specialized cable termination requirements

For right-angle installations, cable exit orientation and minimum bending radius should be considered together when determining the final cable length and routing arrangement.

9. Designed for Compact Subsea Equipment

The MCILRA12F is particularly useful in applications where conventional straight connectors are difficult to install.Its 90-degree cable exit helps direct the cable away from nearby mechanical components and can improve the overall layout of compact equipment.Potential integration environments include:

• ROV electronics housings
• AUV sensor modules
• Compact subsea junction boxes
• Underwater camera assemblies
• Multi-port pressure housings
• Marine instrumentation packages

The right-angle configuration helps simplify cable routing without requiring additional external cable bends immediately behind the connector.

10. Micro Circular Interface for Subsea Applications

The HYSF MCILRA12F belongs to the Micro Circular Right-Angle Connector Series.It is designed for compatibility with corresponding Micro Circular male interfaces, including the MCILRA12M.This makes it suitable for consideration in new underwater equipment designs and compatible replacement applications.Potential uses include:

• Replacement underwater cable connectors
• ROV system upgrades
• AUV instrumentation
• Marine research equipment
• Offshore inspection systems
• OEM underwater cable assemblies

For cross-brand replacement applications, the exact contact arrangement, mating dimensions, and retention mechanism should be checked before installation.

11. Customization for OEM and Subsea Projects

Different underwater equipment manufacturers have different requirements for electrical wiring, cable length, and mechanical integration.HYSF SUBSEA supports customized connector configurations according to project specifications.Customization can include:

• Cable length
• Cable construction
• Electrical configuration
• Contact assignment
• Wiring identification
• Mounting and installation specifications
• Customized electrical ratings

This flexibility makes the MCILRA12F suitable for OEM equipment manufacturers, ROV developers, AUV manufacturers, marine research organizations, and subsea engineering companies.

MCILRA12F Technical Specifications

Parameter	Specification
Brand	HYSF SUBSEA
Model	MCILRA12F
Product Type	Female Right-Angle Inline Underwater Connector
Connector Series	Micro Circular L-Type
Number of Contacts	12 Pins
Contact Gender	Female
Cable Exit	90° L-Shaped / Right-Angle
Connector Body	Neoprene Rubber
Contact Finish	Gold-Plated
Rated Current	5A per Contact, Series Rating
Pressure Rating	Up to 60 MPa
Approximate Working Depth	Up to 6,000 Meters
Cable Configuration	12-Core
Primary Mating Connector	MCILRA12M
Related Bulkhead Models	MCBHRA12M / MCBHRA12F
Customization	Cable Length and Electrical Configuration
Warranty	12 Months

Engineering Note: The 5A-per-contact rating is based on the Micro 10–16 Pin series specification. Confirm the actual MCILRA12F electrical configuration, cable construction, mating interface, and complete assembly qualification before deployment.

Twelve-Pin Wiring and Conductor Identification

The standard Micro 12-pin cable configuration uses twelve individually identified conductors.The standard wiring sequence is:

Pin Number	Standard Wire Color
Pin 1	Red
Pin 2	Red / White
Pin 3	Black
Pin 4	Black / White
Pin 5	Yellow
Pin 6	Yellow / White
Pin 7	Blue
Pin 8	Blue / White
Pin 9	Orange
Pin 10	Orange / White
Pin 11	Brown
Pin 12	Brown / White

This standardized conductor identification helps simplify electrical installation, troubleshooting, and maintenance.

Recommended Wiring Verification

Before integrating the MCILRA12F into an underwater electrical system:

1. Obtain the approved twelve-pin wiring diagram.
2. Confirm the connector contact numbering and viewing orientation.
3. Identify all twelve conductors.
4. Verify the pin-to-wire mapping.
5. Perform electrical continuity testing.
6. Check for unintended shorts between contacts.
7. Confirm power, ground, signal, and control assignments.

The standard wire colors should be verified against the actual production wiring diagram before installation.

Compatible Connectors and Accessories

MCILRA12M – 12-Pin Male Right-Angle Inline Connector

The MCILRA12M is the corresponding male inline connector in the HYSF Micro Circular Right-Angle Series.It is designed to mate with the MCILRA12F for compatible cable-to-cable underwater electrical connections.Both connectors feature right-angle cable exits, making them suitable for installations requiring controlled cable routing on both sides of the connection.Typical connection:MCILRA12M Male Inline + MCILRA12F Female InlineThis combination provides a twelve-contact electrical connection between compatible underwater cable assemblies.

MCBHRA12M / MCBHRA12F – Right-Angle Bulkhead Connectors

The MCBHRA12M and MCBHRA12F are corresponding right-angle bulkhead configurations in the HYSF Micro Circular family.They can be considered for cable-to-bulkhead applications where a right-angle mechanical arrangement is required.The exact male and female mating combinations, mounting dimensions, and connector orientation should be verified against the approved engineering drawings.

Standard Micro Circular Bulkhead Connectors

For applications requiring conventional bulkhead installation, compatible Micro Circular bulkhead connectors can also be considered.These provide fixed electrical interfaces through underwater equipment housings.The selected bulkhead contact gender must match the cable-mounted connector.

Typical Applications of MCILRA12F

1. Remotely Operated Vehicles (ROVs)

ROVs require multiple underwater electrical connections for cameras, sensors, manipulators, navigation systems, and auxiliary equipment.The MCILRA12F provides a twelve-pin female connection with a right-angle cable exit, helping simplify cable routing in compact vehicle structures.

2. Autonomous Underwater Vehicles (AUVs)

AUVs frequently incorporate multiple instruments and electronic modules.The MCILRA12F can be considered for suitable high-density electrical interfaces where compact packaging and controlled cable routing are important.

3. Underwater Cameras and Imaging Systems

Underwater imaging systems may require multiple electrical circuits for power, control, lighting, and auxiliary functions.The twelve-pin configuration offers flexibility for appropriately designed camera and imaging assemblies.Actual video transmission capability depends on the complete cable design and signal requirements.

4. Sonar and Hydrophone Systems

Underwater acoustic systems frequently require multiple electrical channels for sensor connections and instrumentation.The MCILRA12F can be considered for suitable multi-channel sonar, hydrophone, and marine acoustic measurement systems.

5. Marine Sensors and Instrumentation

Marine monitoring equipment often combines multiple sensors and measurement circuits.The twelve-pin configuration can support suitable multi-channel electrical interfaces for CTD instruments, environmental monitoring systems, and underwater data acquisition equipment.

6. Offshore Energy and Subsea Control

Offshore equipment may require multiple electrical connections for monitoring, instrumentation, and control systems.The MCILRA12F provides a compact right-angle connector option for qualified subsea electrical assemblies.

7. Oceanographic Research Equipment

Scientific research equipment often operates in confined pressure housings with multiple sensor connections.The right-angle configuration can help simplify cable routing around compact underwater instrument packages.

Installation Guidelines

Step 1: Verify Connector Compatibility

Confirm that the mating connector is a compatible twelve-pin male Micro Circular interface, such as MCILRA12M.

Step 2: Inspect the Mating Interfaces

Check the contacts, molded rubber body, sealing areas, and cable entry for visible damage or contamination.

Step 3: Verify the Wiring

Confirm all twelve conductor assignments using the approved wiring diagram.

Step 4: Check Cable Exit Orientation

Position the MCILRA12F so its right-angle cable exit follows the intended routing direction.Ensure that the cable does not experience excessive bending or mechanical strain.

Step 5: Align the Connectors

Align the male and female interfaces according to the approved mating orientation.Avoid forcing the connector into an incorrect position.

Step 6: Complete the Mating Operation

Secure the connector using the approved coupling and retention arrangement.

Step 7: Perform Electrical Checks

Verify continuity and insulation resistance according to the application requirements.

Step 8: Verify the Complete Assembly

Before underwater deployment, confirm that the connector, mating component, cable, and installation meet the intended electrical and pressure requirements.

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
• Mechanical inspection
• Hydrostatic pressure testing
• Dielectric withstand testing where applicable

The applicable 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 MCILRA12F underwater connector?

The MCILRA12F is a twelve-pin female right-angle inline underwater electrical connector from the HYSF Micro Circular L-Type Series.

Q2: What is the main advantage of the right-angle design?

Its L-shaped configuration directs the cable approximately 90 degrees away from the connector mating axis, helping reduce straight-line installation clearance requirements.

Q3: How many electrical contacts does MCILRA12F have?

The MCILRA12F features twelve female electrical contacts.

Q4: What is the rated current?

The Micro 10–16 Pin series specifies 5A per contact, subject to the complete electrical configuration.

Q5: What is the maximum working depth?

The MCILRA12F is designed for pressure applications up to 60 MPa, corresponding to approximately 6,000 meters of seawater depth.

Q6: Can the cable length be customized?

Yes. Customized cable lengths and electrical configurations are available according to project requirements.

Q7: What material is used for the connector body?

The connector body is manufactured from molded neoprene rubber.

Q8: What is the contact surface finish?

The electrical contacts feature gold plating.

Q9: Which connector mates with MCILRA12F?

The primary corresponding male inline connector is MCILRA12M.

Q10: Can MCILRA12F be used with a bulkhead connector?

Yes. Compatible Micro Circular bulkhead connectors can be selected according to the required contact gender and mechanical interface. Verify the exact mating configuration before ordering.

Q11: What is the standard twelve-pin wire color arrangement?

The standard sequence includes red, red/white, black, black/white, yellow, yellow/white, blue, blue/white, orange, orange/white, brown, and brown/white.

Q12: Is MCILRA12F compatible with SubConn?

The MCILRA12F is designed for compatibility with corresponding Micro Circular interfaces. Exact mechanical and electrical compatibility should be verified against the relevant connector drawings.

Q13: Is MCILRA12F suitable for Ethernet?

A twelve-pin connector can accommodate multiple electrical circuits, but Ethernet compatibility and transmission speed must be verified using the complete cable, pin assignment, impedance, and signal-integrity specifications.

Q14: Can the electrical configuration be customized?

Yes. Customized wiring arrangements and electrical configurations can be evaluated according to project requirements.

Q15: What is the warranty period?

The standard HYSF SUBSEA product warranty is 12 months, subject to the applicable warranty terms.

Why Choose HYSF SUBSEA MCILRA12F?

The HYSF SUBSEA MCILRA12F 12-Pin Female Right-Angle Inline Underwater Connector provides a compact, high-density electrical connection solution for demanding subsea applications.Its principal advantages include:

• Twelve-pin female inline configuration
• Integrated 90-degree L-shaped cable exit
• High-density electrical connectivity
• Molded neoprene rubber body
• Gold-plated electrical contacts
• 5A per contact Micro series current rating
• Pressure capability up to 60 MPa
• Design depth capability up to 6,000 meters
• Standard twelve-core wiring configuration
• Customized cable lengths and electrical configurations
• Compatible male right-angle inline connector
• Designed for corresponding Micro Circular interfaces
• 12-month product warranty

For ROV manufacturers, AUV developers, marine research organizations, and underwater equipment manufacturers, the MCILRA12F provides a practical solution for integrating multiple electrical circuits into compact subsea systems.Its right-angle cable exit is particularly beneficial for applications where installation clearance is limited and cable routing must be carefully controlled.The combination of twelve contacts, flexible neoprene construction, and high-pressure capability makes the MCILRA12F a versatile connector option for appropriately designed underwater electrical assemblies.