{"id":9378,"date":"2026-10-25T05:33:39","date_gmt":"2026-10-25T05:33:39","guid":{"rendered":"https:\/\/hysfsubsea.com\/?post_type=product&p=9378"},"modified":"2026-10-25T05:33:40","modified_gmt":"2026-10-25T05:33:40","slug":"il25f-25-pin-female-inline-subconn-compatible-underwater-connector","status":"publish","type":"product","link":"https:\/\/hysfsubsea.com\/ja\/product\/il25f-25-pin-female-inline-subconn-compatible-underwater-connector\/","title":{"rendered":"IL25F 25-Pin Female Inline Underwater Connector \u2013 SubConn Compatible | HYSF SUBSEA"},"content":{"rendered":"

IL25F 25-Pin Female Inline Underwater Connector \u2013 SubConn Compatible Standard Circular Series<\/h1>\n

Product Overview<\/h2>\n

The HYSF SUBSEA IL25F 25-Pin Female Inline Underwater Connector<\/strong> is a high-density, wet-mateable subsea electrical connector designed for reliable multi-channel signal, control, and power connections in demanding marine environments.<\/p>\n

As part of the HYSF Standard Circular Connector Series, the IL25F features twenty-five gold-plated female electrical contacts<\/strong>, a durable molded neoprene rubber body, and an integrated underwater cable.<\/p>\n

Its high-density contact configuration enables multiple electrical circuits to be connected through a single underwater mating interface, making it particularly suitable for complex subsea instrumentation and marine electronic equipment.<\/p>\n

The connector belongs to a series designed for underwater operation at depths of up to 6,000 meters (60 MPa)<\/strong>, subject to the qualification of the complete connector and cable assembly.<\/p>\n

The Standard Circular series has a rated operating voltage of 550V AC\/DC<\/strong>. The 25-pin configuration has a nominal current rating of 5A per contact<\/strong>, with selected higher-current configurations potentially supporting up to 10A according to the approved contact arrangement.<\/p>\n

The standard IL25F is supplied with approximately 1 meter of underwater cable<\/strong>, while customized cable lengths, conductor configurations, and complete subsea cable assemblies can be specified for different engineering requirements.<\/p>\n

The IL25F is designed for mating compatibility with corresponding SubConn and SEACON Standard Circular underwater connectors<\/strong>.<\/p>\n

Its primary matching bulkhead connector is the BH25M 25-Pin Male Bulkhead Underwater Connector<\/strong>.<\/p>\n

Typical applications include remotely operated vehicles (ROVs), autonomous underwater vehicles (AUVs), sonar systems, hydrophone arrays, oceanographic instrumentation, offshore monitoring equipment, underwater sensor networks, and deep-sea research platforms.<\/p>\n

Key Features and Benefits<\/h2>\n

1. High-Density 25-Pin Female Electrical Interface<\/h3>\n

The IL25F incorporates twenty-five electrical contact positions within a single Standard Circular connector interface.<\/p>\n

This configuration provides a practical solution for underwater equipment requiring numerous independent electrical channels.<\/p>\n

Potential applications include:<\/p>\n

    \n
  • Multiple underwater sensor connections<\/li>\n
  • Marine instrumentation circuits<\/li>\n
  • Electrical control signals<\/li>\n
  • Low-power distribution<\/li>\n
  • Underwater acoustic measurement channels<\/li>\n
  • Subsea monitoring systems<\/li>\n
  • Auxiliary equipment connections<\/li>\n
  • Multi-channel data acquisition<\/li>\n
  • Custom underwater wiring harnesses<\/li>\n<\/ul>\n

    Using a single 25-pin underwater connector can reduce the number of separate mating interfaces required in complex electrical systems.<\/p>\n

    This may simplify cable routing, equipment installation, and maintenance.<\/p>\n

    The actual circuit assignments depend on the electrical requirements of the connected equipment and the approved wiring configuration.<\/p>\n

    2. Nominal 5A per Contact Electrical Rating<\/h3>\n

    The IL25F belongs to the HYSF Standard Circular 12\/16\/25 Pin Connector Series.<\/p>\n

    Unlike the Standard 12-pin and 16-pin configurations, which have a catalog current rating of 10A per contact, the 25-pin configuration has a nominal rating of 5A per contact<\/strong>.<\/p>\n

    The manufacturer’s catalog also identifies selected higher-current contact configurations reaching 10A.<\/p>\n

    These higher-current ratings should not automatically be applied to all twenty-five contact positions.<\/p>\n

    The permissible current depends on:<\/p>\n

      \n
    • Contact dimensions and configuration<\/li>\n
    • Cable conductor cross-sectional area<\/li>\n
    • Number of simultaneously loaded contacts<\/li>\n
    • Electrical termination design<\/li>\n
    • Operating temperature<\/li>\n
    • Cable length and voltage drop<\/li>\n
    • Complete assembly qualification<\/li>\n<\/ul>\n

      For applications requiring currents above 5A on particular contacts, the exact contact-specific ratings must be verified against the approved product drawing.<\/p>\n

      3. 550V AC\/DC Rated Voltage<\/h3>\n

      The HYSF Standard Circular 25-pin connector family is designed for electrical applications requiring a rated voltage of up to 550V AC\/DC<\/strong>.<\/p>\n

      This provides flexibility for appropriately designed subsea electrical systems.<\/p>\n

      The IL25F can accommodate multiple circuits within one connector, provided the voltage and current ratings of the complete assembly are respected.<\/p>\n

      Cable insulation, conductor separation, termination quality, and connected equipment specifications must also be considered.<\/p>\n

      The allowable system voltage must not exceed the rating of the lowest-rated component.<\/p>\n

      4. SubConn and SEACON Compatible Standard Circular Design<\/h3>\n

      The IL25F features a Standard Circular mating interface designed for compatibility with corresponding SubConn and SEACON connector configurations.<\/p>\n

      This makes the connector suitable for consideration in compatible replacement applications and newly developed underwater equipment.<\/p>\n

      Typical integration scenarios include:<\/p>\n

        \n
      • Replacement underwater cable assemblies<\/li>\n
      • ROV electrical system upgrades<\/li>\n
      • Marine instrument maintenance<\/li>\n
      • OEM subsea equipment development<\/li>\n
      • Offshore monitoring installations<\/li>\n
      • Custom underwater interconnection systems<\/li>\n<\/ul>\n

        Before connecting the IL25F to a connector manufactured by another company, verify the exact series, contact count, contact arrangement, mating geometry, and retention mechanism.<\/p>\n

        Matching pin count alone does not guarantee compatibility.<\/p>\n

        5. Deep-Sea Capability up to 6,000 Meters<\/h3>\n

        The HYSF Standard Circular connector series is designed for subsea environments involving high hydrostatic pressure.<\/p>\n

        The series supports a design depth capability of up to 6,000 meters<\/strong>, approximately equivalent to 60 MPa<\/strong>.<\/p>\n

        This makes the IL25F suitable for consideration in applications such as:<\/p>\n

          \n
        • Deep-sea scientific research<\/li>\n
        • Offshore underwater monitoring<\/li>\n
        • Seabed instrumentation<\/li>\n
        • Underwater robotic operations<\/li>\n
        • Marine environmental measurement<\/li>\n
        • Deep-water sensor systems<\/li>\n<\/ul>\n

          The molded body helps protect the electrical contact termination from external seawater exposure.<\/p>\n

          Actual operating depth depends on the complete connector assembly, including the mating connector, cable construction, molded termination, and applicable pressure qualification.<\/p>\n

          For critical underwater deployments, the complete assembly should be verified for the intended operating conditions.<\/p>\n

          6. Wet-Mateable Underwater Connection<\/h3>\n

          The IL25F belongs to HYSF SUBSEA’s wet-mateable Standard Circular connector family.<\/p>\n

          The interface is designed to support underwater mating and unmating under the applicable operating procedures.<\/p>\n

          This capability can be valuable for modular underwater equipment and removable marine instruments.<\/p>\n

          Typical applications include:<\/p>\n

            \n
          • ROV sensor replacement<\/li>\n
          • Underwater equipment servicing<\/li>\n
          • Modular subsea payloads<\/li>\n
          • Scientific instrument maintenance<\/li>\n
          • Detachable underwater cable assemblies<\/li>\n<\/ul>\n

            Important:<\/strong> Wet-mateable does not automatically mean live-mateable.<\/p>\n

            Electrical power should be isolated before mating or unmating unless the complete connector system has been specifically qualified for energized operation.<\/p>\n

            7. Molded Neoprene Rubber Construction<\/h3>\n

            The standard IL25F features a molded neoprene rubber connector body.<\/p>\n

            Neoprene rubber provides flexibility and mechanical resilience for underwater electrical connector applications.<\/p>\n

            The molded structure integrates the electrical contact assembly with the attached subsea cable.<\/p>\n

            Its principal advantages include:<\/p>\n

              \n
            • Watertight molded construction<\/li>\n
            • Mechanical protection of cable terminations<\/li>\n
            • Suitability for marine environments<\/li>\n
            • Integrated cable entry<\/li>\n
            • Flexible installation<\/li>\n
            • Durable underwater connector construction<\/li>\n<\/ul>\n

              Proper cable routing and strain relief remain important.<\/p>\n

              Excessive pulling, twisting, and sharp bending near the molded connector body should be avoided.<\/p>\n

              8. Gold-Plated Female Electrical Contacts<\/h3>\n

              The IL25F incorporates twenty-five gold-plated female electrical contacts.<\/p>\n

              Gold plating provides a conductive contact surface and helps reduce oxidation.<\/p>\n

              Reliable electrical contact performance is especially important in subsea instrumentation systems requiring stable signal transmission and electrical continuity.<\/p>\n

              The female mating interface is designed to engage with corresponding male connector contacts.<\/p>\n

              Before mating, users should inspect the connector face for sand, sediment, salt deposits, and mechanical damage.<\/p>\n

              Correct handling and regular inspection help maintain connector reliability.<\/p>\n

              9. Standard 1-Meter Cable with Customization Options<\/h3>\n

              The standard IL25F is normally supplied with approximately 1 meter of underwater cable<\/strong>.<\/p>\n

              This configuration provides a practical cable-mounted interface for subsea equipment.<\/p>\n

              HYSF SUBSEA supports customized underwater cable assemblies for specific engineering applications.<\/p>\n

              Customization options may include:<\/p>\n

                \n
              • Alternative cable lengths<\/li>\n
              • Different conductor sizes<\/li>\n
              • Shielded cable constructions<\/li>\n
              • Twisted-pair arrangements<\/li>\n
              • Customized pin assignments<\/li>\n
              • Special cable outer diameters<\/li>\n
              • Alternative cable jacket materials<\/li>\n
              • Open-ended wire terminations<\/li>\n
              • Connector-to-connector assemblies<\/li>\n
              • OEM underwater electrical harnesses<\/li>\n<\/ul>\n

                The chosen cable configuration should be evaluated against the required current, voltage, signal performance, operating depth, and mechanical loading.<\/p>\n

                IL25F Technical Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                \u30d1\u30e9\u30e1\u30fc\u30bf<\/th>\n\u4ed5\u69d8<\/th>\n<\/tr>\n
                Brand<\/td>\nHYSF SUBSEA<\/td>\n<\/tr>\n
                Model Number<\/td>\nIL25F<\/td>\n<\/tr>\n
                \u88fd\u54c1\u30b7\u30ea\u30fc\u30ba<\/td>\nStandard Circular<\/td>\n<\/tr>\n
                \u30b3\u30cd\u30af\u30bf\u30fc\u30fb\u30bf\u30a4\u30d7<\/td>\nFemale Inline Underwater Connector<\/td>\n<\/tr>\n
                \u30b3\u30f3\u30bf\u30af\u30c8\u6570<\/td>\n25<\/td>\n<\/tr>\n
                Contact Gender<\/td>\nFemale<\/td>\n<\/tr>\n
                Contact Finish<\/td>\nGold-Plated<\/td>\n<\/tr>\n
                Connector Body<\/td>\nMolded Neoprene Rubber<\/td>\n<\/tr>\n
                Rated Voltage<\/td>\n550V AC\/DC<\/td>\n<\/tr>\n
                Nominal Rated Current<\/td>\n5A per Contact<\/td>\n<\/tr>\n
                Selected Higher-Current Configurations<\/td>\nUp to 10A, Subject to Approved Contact Arrangement<\/td>\n<\/tr>\n
                Design Depth Capability<\/td>\nUp to 6,000 Meters<\/td>\n<\/tr>\n
                Pressure Capability<\/td>\nUp to 60 MPa<\/td>\n<\/tr>\n
                Mating Type<\/td>\nWet-Mateable<\/td>\n<\/tr>\n
                Standard Cable Length<\/td>\n1 Meter<\/td>\n<\/tr>\n
                Custom Cable Lengths<\/td>\nAvailable<\/td>\n<\/tr>\n
                Primary Mating Bulkhead<\/td>\nBH25M<\/td>\n<\/tr>\n
                Corresponding Male Inline Connector<\/td>\nIL25M<\/td>\n<\/tr>\n
                Protective Dummy Plug for IL25F<\/td>\nDC25M<\/td>\n<\/tr>\n
                Protective Dummy Plug for BH25M<\/td>\nDC25F<\/td>\n<\/tr>\n
                Compatibility<\/td>\nCorresponding SubConn and SEACON Standard Circular Interfaces<\/td>\n<\/tr>\n
                Warranty<\/td>\n12 Months<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                Technical Note:<\/strong> Current ratings above the nominal 5A per contact require confirmation of the applicable contact arrangement. Electrical and environmental performance must be evaluated for the complete connector and cable assembly.<\/p>\n

                25-Pin Wiring Configuration and Cable Identification<\/h2>\n

                The HYSF Standard Circular 25-pin connector family provides a high-density conductor arrangement suitable for multi-channel electrical applications.<\/p>\n

                Depending on the cable construction, the IL25F assembly may incorporate individual conductors, paired conductors, or shielded wiring configurations.<\/p>\n

                Twisted-pair arrangements can be useful for certain instrumentation and communication circuits.<\/p>\n

                However, the presence of twisted pairs does not automatically guarantee compatibility with Ethernet or any specific high-speed communication protocol.<\/p>\n

                Signal performance depends on the complete cable design, including:<\/p>\n

                  \n
                • Conductor pairing<\/li>\n
                • Characteristic impedance<\/li>\n
                • Shielding arrangement<\/li>\n
                • Cable capacitance<\/li>\n
                • Termination quality<\/li>\n
                • Signal frequency<\/li>\n
                • Cable length<\/li>\n
                • Grounding requirements<\/li>\n<\/ul>\n

                  Pin-to-Wire Identification<\/h3>\n

                  The twenty-five contact positions should be identified using the approved IL25F wiring diagram.<\/p>\n

                  Wire colors and conductor identification may vary according to the selected cable construction.<\/p>\n

                  Before integrating an IL25F assembly into underwater equipment:<\/p>\n

                    \n
                  1. Confirm the contact numbering and connector viewing direction.<\/li>\n
                  2. Verify the conductor identification corresponding to each pin.<\/li>\n
                  3. Review the approved pin-to-wire assignment.<\/li>\n
                  4. Perform electrical continuity testing.<\/li>\n
                  5. Confirm that signal, power, and return conductors are connected correctly.<\/li>\n<\/ol>\n

                    The final wiring configuration should be based on the approved production drawing.<\/p>\n

                    Compatible Connectors and Accessories<\/h2>\n

                    BH25M \u2013 25-Pin Male Bulkhead Underwater Connector<\/h3>\n

                    The BH25M<\/strong> is the primary male bulkhead mating connector for the IL25F.<\/p>\n

                    It is designed for installation through an underwater equipment enclosure, pressure housing, or marine instrumentation panel.<\/p>\n

                    The corresponding Standard Circular 12\/16\/25 Pin bulkhead family specifies:<\/p>\n

                      \n
                    • Mounting Thread:<\/strong> 3\/4-16 UNF-2A<\/li>\n
                    • Nominal Thread Length:<\/strong> 25 mm<\/li>\n
                    • Base Mounting Radius:<\/strong> 32.4 mm<\/li>\n
                    • Mounting Surface Roughness:<\/strong> Ra 1.6<\/li>\n<\/ul>\n

                      These dimensions apply to the corresponding bulkhead mounting configuration, not to the IL25F inline cable connector.<\/p>\n

                      Before machining a pressure housing, verify the final BH25M installation drawing.<\/p>\n

                      Normal electrical connection:<\/strong><\/p>\n

                      IL25F Female Inline Connector + BH25M Male Bulkhead Connector<\/p>\n

                      IL25M \u2013 25-Pin Male Inline Underwater Connector<\/h3>\n

                      The IL25M<\/strong> is the corresponding male inline connector within the Standard Circular 25-pin family.<\/p>\n

                      It features twenty-five male electrical contacts and an integrated underwater cable.<\/p>\n

                      A compatible IL25F and IL25M arrangement may be used for suitable cable-to-cable connections when the mating interface and retention system are correctly specified.<\/p>\n

                      Such arrangements may be useful for modular subsea electrical systems and underwater cable extensions.<\/p>\n

                      DC25M \u2013 25-Pin Male Dummy Plug<\/h3>\n

                      The DC25M<\/strong> is the corresponding male protective dummy plug for compatible female Standard Circular connector interfaces.<\/p>\n

                      It can help protect the IL25F female mating interface when the operational connection is disconnected, provided the mating and retention configuration is appropriate.<\/p>\n

                      The DC25M also serves as the corresponding protective accessory for the BH25F female bulkhead connector.<\/p>\n

                      A dummy plug does not provide functional electrical transmission.<\/p>\n

                      DC25F \u2013 25-Pin Female Dummy Plug<\/h3>\n

                      The DC25F<\/strong> is the corresponding female protective dummy plug for compatible male Standard Circular interfaces.<\/p>\n

                      It can help protect the exposed BH25M male bulkhead when the IL25F cable assembly is disconnected.<\/p>\n

                      The pressure capability of a complete dummy-plugged arrangement should be verified for the intended subsea deployment conditions.<\/p>\n

                      IL25F vs. IL25M<\/h2>\n

                      The IL25F and IL25M belong to the same Standard Circular 25-pin connector family.<\/p>\n

                      Their primary difference is the electrical contact gender.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
                      Feature<\/th>\nIL25F<\/th>\nIL25M<\/th>\n<\/tr>\n
                      \u30b3\u30cd\u30af\u30bf\u30fc\u30fb\u30bf\u30a4\u30d7<\/td>\nFemale Inline<\/td>\nMale Inline<\/td>\n<\/tr>\n
                      \u30b3\u30f3\u30bf\u30af\u30c8\u6570<\/td>\n25<\/td>\n25<\/td>\n<\/tr>\n
                      Contact Gender<\/td>\nFemale<\/td>\nMale<\/td>\n<\/tr>\n
                      Nominal Current Rating<\/td>\n5A per Contact<\/td>\n5A per Contact<\/td>\n<\/tr>\n
                      Rated Voltage<\/td>\n550V AC\/DC<\/td>\n550V AC\/DC<\/td>\n<\/tr>\n
                      Standard Cable Length<\/td>\n1 Meter<\/td>\n1 Meter<\/td>\n<\/tr>\n
                      Primary Mating Bulkhead<\/td>\nBH25M<\/td>\nBH25F<\/td>\n<\/tr>\n
                      Protective Dummy Plug<\/td>\nDC25M<\/td>\nDC25F<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                      Both models support appropriately configured underwater cable assemblies.<\/p>\n

                      Typical Applications of IL25F Underwater Connectors<\/h2>\n

                      1. Remotely Operated Vehicles (ROVs)<\/h3>\n

                      ROVs frequently use multiple sensors, control circuits, and auxiliary electronic systems.<\/p>\n

                      The IL25F provides a high-density electrical interface that can consolidate several circuits within one underwater cable connection.<\/p>\n

                      It can be integrated into suitable ROV sensor, monitoring, and instrumentation cable assemblies.<\/p>\n

                      2. Autonomous Underwater Vehicles (AUVs)<\/h3>\n

                      AUV systems often require detachable connections between internal electronic systems and external scientific instruments.<\/p>\n

                      The IL25F provides a Standard Circular cable interface suitable for appropriately designed AUV electrical connections.<\/p>\n

                      Its twenty-five-contact configuration supports flexible allocation of power, control, and measurement circuits.<\/p>\n

                      3. Sonar and Hydrophone Arrays<\/h3>\n

                      Sonar systems and hydrophone arrays may require multiple low-level signal connections.<\/p>\n

                      The IL25F can provide a multi-contact interface for underwater acoustic instrumentation.<\/p>\n

                      For sensitive signals, appropriate shielding, grounding, conductor pairing, and noise-control measures should be considered.<\/p>\n

                      4. Oceanographic Research Instruments<\/h3>\n

                      Marine scientific equipment often requires numerous electrical connections for sensor excitation, measurement, control, and monitoring.<\/p>\n

                      The IL25F can be incorporated into suitable:<\/p>\n

                        \n
                      • Oceanographic data acquisition systems<\/li>\n
                      • Marine environmental monitoring platforms<\/li>\n
                      • Underwater sensor networks<\/li>\n
                      • Scientific instrumentation packages<\/li>\n
                      • Seabed observation equipment<\/li>\n
                      • Deep-sea measurement systems<\/li>\n<\/ul>\n

                        5. Underwater Cameras and Imaging Equipment<\/h3>\n

                        Underwater imaging systems may require separate conductors for power, control, auxiliary sensors, and communication circuits.<\/p>\n

                        The IL25F offers a high-density underwater electrical interface for appropriate camera and imaging equipment.<\/p>\n

                        High-speed data transmission capability must be verified using the complete cable and electrical system design.<\/p>\n

                        6. Offshore Monitoring Equipment<\/h3>\n

                        Offshore monitoring systems may require multiple electrical channels under demanding marine conditions.<\/p>\n

                        The IL25F provides a detachable subsea cable interface for appropriately designed instrumentation and monitoring equipment.<\/p>\n

                        7. Marine Research and Testing Equipment<\/h3>\n

                        Research laboratories and underwater equipment manufacturers often develop specialized instruments with customized wiring requirements.<\/p>\n

                        The IL25F provides a configurable high-density connector platform for suitable prototype, research, and testing applications.<\/p>\n

                        Installation and Handling Guidelines<\/h2>\n

                        Step 1: Confirm the Mating Connector<\/h3>\n

                        Verify the selected mating interface is a compatible Standard Circular 25-pin male configuration.<\/p>\n

                        The primary matching bulkhead is BH25M.<\/p>\n

                        Step 2: Inspect the Connector<\/h3>\n

                        Check the molded body, female contact interface, cable jacket, and termination area for visible damage.<\/p>\n

                        Step 3: Clean the Mating Surface<\/h3>\n

                        Ensure the connector interface is free from sand, sediment, salt deposits, and foreign particles.<\/p>\n

                        Step 4: Isolate Electrical Power<\/h3>\n

                        Disconnect electrical power before mating or unmating unless the assembly has been specifically qualified for energized operation.<\/p>\n

                        Step 5: Align the Connector<\/h3>\n

                        Align the IL25F correctly with the corresponding male connector.<\/p>\n

                        Avoid excessive force or incorrect engagement.<\/p>\n

                        Step 6: Complete the Mating Operation<\/h3>\n

                        Follow the approved mating procedure and secure the required locking or retention components.<\/p>\n

                        Step 7: Protect the Cable<\/h3>\n

                        Provide appropriate strain relief and avoid excessive bending, pulling, or twisting near the molded cable termination.<\/p>\n

                        Step 8: Verify Electrical Connections<\/h3>\n

                        Check the approved pin assignments and perform continuity and insulation verification before operation.<\/p>\n

                        For pressure-critical applications, confirm that the complete assembly meets the required subsea operating conditions.<\/p>\n

                        Quality Control and Testing<\/h2>\n

                        HYSF SUBSEA manufactures underwater electrical connectors and customized subsea cable assemblies for demanding marine applications.<\/p>\n

                        Depending on the product configuration and project requirements, quality-control procedures may include:<\/p>\n

                          \n
                        • Hydrostatic pressure testing<\/li>\n
                        • Electrical continuity testing<\/li>\n
                        • Insulation resistance measurement<\/li>\n
                        • Dielectric withstand testing<\/li>\n
                        • Contact inspection<\/li>\n
                        • Dimensional verification<\/li>\n
                        • Cable termination inspection<\/li>\n
                        • Wiring identification verification<\/li>\n
                        • Mechanical integrity evaluation<\/li>\n<\/ul>\n

                          Acceptance criteria should be defined according to the approved product configuration and operating requirements.<\/p>\n

                          Frequently Asked Questions<\/h2>\n

                          Q1: What is the IL25F underwater connector?<\/h3>\n

                          The IL25F is a 25-pin female inline underwater electrical connector belonging to the HYSF Standard Circular Series.<\/p>\n

                          Q2: Which bulkhead connector mates with IL25F?<\/h3>\n

                          The primary matching bulkhead connector is BH25M<\/strong>, a 25-pin male underwater bulkhead connector.<\/p>\n

                          Q3: Is IL25F compatible with SubConn?<\/h3>\n

                          The IL25F is designed for mating compatibility with corresponding SubConn Standard Circular 25-pin interfaces.<\/p>\n

                          Exact compatibility should be verified using the connector drawings.<\/p>\n

                          Q4: What is the rated current?<\/h3>\n

                          The nominal current rating is 5A per contact<\/strong>.<\/p>\n

                          Selected higher-current contact configurations may support up to 10A, subject to approved contact-specific ratings.<\/p>\n

                          Q5: What is the rated voltage?<\/h3>\n

                          The Standard Circular series is rated for 550V AC\/DC<\/strong>.<\/p>\n

                          Q6: What is the maximum operating depth?<\/h3>\n

                          The series has a design depth capability of up to 6,000 meters (60 MPa)<\/strong>, subject to qualification of the complete connector and cable assembly.<\/p>\n

                          Q7: Is IL25F wet-mateable?<\/h3>\n

                          Yes. The IL25F belongs to the wet-mateable Standard Circular connector family.<\/p>\n

                          Electrical power should be isolated before mating or unmating unless energized operation has been specifically qualified.<\/p>\n

                          Q8: What is the standard cable length?<\/h3>\n

                          The standard IL25F normally includes approximately 1 meter of underwater cable<\/strong>.<\/p>\n

                          Q9: Can the cable length be customized?<\/h3>\n

                          Yes. Customized lengths, conductor configurations, and cable termination arrangements are available.<\/p>\n

                          Q10: What is the difference between IL25F and IL25M?<\/h3>\n

                          IL25F has twenty-five female contacts, while IL25M has twenty-five male contacts.<\/p>\n

                          Both belong to the Standard Circular 25-pin family.<\/p>\n

                          Q11: Does IL25F have a panel mounting thread?<\/h3>\n

                          No. The IL25F is a cable-mounted inline connector.<\/p>\n

                          The corresponding BH25M bulkhead uses a Standard 12\/16\/25-pin mounting arrangement with a 3\/4-16 UNF-2A thread.<\/p>\n

                          Q12: Which dummy plug protects IL25F?<\/h3>\n

                          The corresponding male protective accessory is DC25M<\/strong>, subject to the appropriate mating and retention configuration.<\/p>\n

                          Q13: Which dummy plug protects BH25M?<\/h3>\n

                          The corresponding protective accessory is DC25F<\/strong>, a 25-pin female dummy plug.<\/p>\n

                          Q14: Can IL25F transmit power and signals simultaneously?<\/h3>\n

                          The twenty-five contacts can be allocated to suitable power, control, and signal circuits within the approved electrical ratings.<\/p>\n

                          The system must be evaluated for current loading, conductor sizing, shielding, and interference.<\/p>\n

                          Q15: Can IL25F support Ethernet communication?<\/h3>\n

                          Contact count alone does not establish Ethernet compatibility.<\/p>\n

                          The complete cable assembly must satisfy the required impedance, conductor pairing, shielding, and signal performance specifications.<\/p>\n

                          Q16: Is IL25F suitable for custom subsea cable assemblies?<\/h3>\n

                          Yes. The IL25F can be incorporated into customized cable assemblies with different lengths, wiring assignments, conductor constructions, and termination configurations.<\/p>\n

                          Why Choose HYSF SUBSEA IL25F?<\/h2>\n

                          The HYSF SUBSEA IL25F 25-Pin Female Inline Underwater Connector<\/strong> provides a durable, high-density electrical interface for demanding marine and subsea environments.<\/p>\n

                          Its principal advantages include:<\/p>\n

                            \n
                          • Twenty-five female electrical contacts<\/li>\n
                          • SubConn-compatible Standard Circular mating interface<\/li>\n
                          • Wet-mateable underwater connector design<\/li>\n
                          • Nominal 5A per contact rating<\/li>\n
                          • Higher-current contact options subject to verification<\/li>\n
                          • 550V AC\/DC rated voltage<\/li>\n
                          • Design depth capability up to 6,000 meters<\/li>\n
                          • Molded neoprene rubber connector body<\/li>\n
                          • Gold-plated electrical contacts<\/li>\n
                          • Standard 1-meter underwater cable<\/li>\n
                          • Compatible BH25M male bulkhead connector<\/li>\n
                          • Corresponding DC25M protective dummy plug<\/li>\n
                          • Customized cable lengths and wiring configurations<\/li>\n
                          • OEM underwater cable assembly options<\/li>\n
                          • 12-month product warranty<\/li>\n<\/ul>\n

                            For underwater robotic systems, sonar equipment, oceanographic instruments, offshore monitoring applications, and marine research platforms, the IL25F provides a practical solution for consolidating multiple electrical circuits into one underwater connection.<\/p>\n

                            Its high contact density, molded watertight construction, and compatibility with established Standard Circular interfaces make it suitable for complex subsea electrical integration projects.<\/p>","protected":false},"excerpt":{"rendered":"

                            The HYSF SUBSEA IL25F 25-Pin Female Inline Underwater Connector<\/strong> is a high-density, wet-mateable subsea electrical connector designed for reliable multi-channel signal, control, and power connections in demanding marine environments.<\/p>\n

                            As part of the HYSF Standard Circular Series, the IL25F features twenty-five gold-plated female electrical contacts<\/strong>, a durable molded neoprene rubber body, and an integrated underwater cable.<\/p>\n

                            The connector is designed for operation at depths of up to 6,000 meters (60 MPa)<\/strong>, with a rated voltage of 550V AC\/DC<\/strong> and a nominal current rating of 5A per contact<\/strong>, subject to qualification of the complete connector and cable assembly.<\/p>\n

                            Selected higher-current configurations may support up to 10A on approved contacts, depending on the specific contact arrangement and cable construction.<\/p>\n

                            The IL25F is designed to mate with the BH25M 25-Pin Male Bulkhead Underwater Connector<\/strong> and is compatible with corresponding SubConn and SEACON Standard Circular interfaces.<\/p>\n

                            Its twenty-five-contact configuration provides a practical solution for underwater equipment requiring multiple independent electrical circuits through one connector interface.<\/p>\n

                            \u4e3b\u306a\u4ed5\u69d8<\/h3>\n
                              \n
                            • Model:<\/strong> IL25F<\/li>\n
                            • Brand:<\/strong> HYSF SUBSEA<\/li>\n
                            • Connector Type:<\/strong> 25-Pin Female Inline Underwater Connector<\/li>\n
                            • Series:<\/strong> Standard Circular<\/li>\n
                            • Contact Configuration:<\/strong> 25 Female Contacts<\/li>\n
                            • Contact Finish:<\/strong> Gold-Plated<\/li>\n
                            • Connector Body:<\/strong> Molded Neoprene Rubber<\/li>\n
                            • Rated Voltage:<\/strong> 550V AC\/DC<\/li>\n
                            • Nominal Rated Current:<\/strong> 5A per Contact<\/li>\n
                            • Higher-Current Configurations:<\/strong> Up to 10A on Selected Contacts, Subject to Verification<\/li>\n
                            • Design Depth:<\/strong> Up to 6,000 Meters<\/li>\n
                            • Pressure Capability:<\/strong> Up to 60 MPa<\/li>\n
                            • Mating Type:<\/strong> Wet-Mateable<\/li>\n
                            • Standard Cable Length:<\/strong> 1 Meter<\/li>\n
                            • Mating Bulkhead Connector:<\/strong> BH25M<\/li>\n
                            • Corresponding Male Inline Connector:<\/strong> IL25M<\/li>\n
                            • Protective Dummy Plug for IL25F:<\/strong> DC25M<\/li>\n
                            • Protective Dummy Plug for BH25M:<\/strong> DC25F<\/li>\n
                            • Compatibility:<\/strong> Corresponding SubConn and SEACON Standard Circular Interfaces<\/li>\n
                            • \u30ab\u30b9\u30bf\u30de\u30a4\u30ba\uff1a<\/strong> Cable Length, Conductor Size, Wiring Configuration, and Cable Termination<\/li>\n
                            • Warranty:<\/strong> 12 Months<\/li>\n<\/ul>\n

                              Typical Applications<\/h3>\n

                              The IL25F is suitable for:<\/p>\n

                                \n
                              • Remotely Operated Vehicles (ROVs)<\/li>\n
                              • Autonomous Underwater Vehicles (AUVs)<\/li>\n
                              • Sonar and Hydrophone Arrays<\/li>\n
                              • Underwater Instrumentation Systems<\/li>\n
                              • Oceanographic Research Equipment<\/li>\n
                              • Marine Environmental Monitoring<\/li>\n
                              • Underwater Cameras and Imaging Equipment<\/li>\n
                              • Offshore Inspection Systems<\/li>\n
                              • Subsea Electronic Control Equipment<\/li>\n
                              • \u6df1\u6d77\u79d1\u5b66\u8abf\u67fb<\/li>\n
                              • Customized Multi-Core Underwater Cable Assemblies<\/li>\n<\/ul>\n

                                \u30ab\u30b9\u30bf\u30e0\u30b1\u30fc\u30d6\u30eb\u30a2\u30bb\u30f3\u30d6\u30ea<\/h3>\n

                                HYSF SUBSEA supports customized IL25F underwater cable assemblies, including alternative cable lengths, shielded cables, twisted-pair conductor arrangements, customized pin assignments, and connector-to-connector configurations.<\/p>\n

                                The standard IL25F includes approximately 1 meter of underwater cable<\/strong>. Custom configurations can be selected according to the electrical and mechanical requirements of the application.<\/p>\n

                                Important:<\/strong> The IL25F has a nominal rating of 5A per contact and should not be described as a universal 10A-per-contact connector. Higher-current configurations require verification of the specific contact arrangement and cable specifications.<\/p>\n

                                The IL25F provides a high-density, customizable underwater electrical connection solution for professional subsea systems requiring reliable multi-contact connectivity.<\/p>","protected":false},"featured_media":9379,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[30],"product_cat":[32],"product_tag":[],"class_list":["post-9378","product","type-product","status-publish","has-post-thumbnail","product_brand-hysf","product_cat-standard-circular-connectors","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product\/9378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/comments?post=9378"}],"version-history":[{"count":1,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product\/9378\/revisions"}],"predecessor-version":[{"id":9380,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product\/9378\/revisions\/9380"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/media\/9379"}],"wp:attachment":[{"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/media?parent=9378"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product_brand?post=9378"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product_cat?post=9378"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hysfsubsea.com\/ja\/wp-json\/wp\/v2\/product_tag?post=9378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}