Interface
Pin count, maximum envelope, electrical load and cable diameter.
← All connector familiesDEPTHLINK / SUBSEA CONNECTIVITY
Micro Circular connectors.
Explore compact circular connections for instruments and smaller assemblies.
Contact us ↗Technical overview ↓
DEFINE YOUR CONFIGURATION
Build the specification around your equipment.
Available installation space, signal requirements and cable routing.
Assembly
Cable length, end termination, materials and installation conditions.
Project
Required quantity, delivery date, inspection and documentation.
Final specifications, availability and any compatibility with an existing connector are confirmed during quotation.
SERIES OVERVIEW & CAPABILITIES
Understand the configuration.
Compact circular interfaces with standard and double O-ring bulkhead options. Contact count and cable construction determine the appropriate configuration.
SubConn technical reference
The figures below describe the referenced SubConn configurations, not verified DepthLink alternatives. Final supplied specifications and mating compatibility are confirmed with your quotation. Qualified pressure-test values are shown as published and are not automatically working-depth ratings.
Technical information reviewed 19 September 2026Contacts1–21, by configuration
Voltage300 V DC/AC rms
Current5–10 A/contact, by configuration
MatingMore than 500 wet matings
Typical applications
- Compact instruments
- ROV and survey systems
- Camera and sensor connections
Selection notes
Standard 2–4 contact versions are rated 10 A/contact; G2 2–4 contact versions are rated 5 A/contact. The single-contact page lists only an open-face pressure-test value.
Specifications by configuration
Expand a group for electrical and environmental limits, construction, wiring. Open the product specification to build your requirements.
Micro Circular - 1 contactTechnical details +
Electrical & environmental
| Voltage rating | 300 V DC/AC rms |
|---|---|
| Current rating | 5 A |
| Insulation resistance | > 200 MΩ |
| Contact resistance | < 0.01 Ω |
| Wet matings | > 500 |
| Temperature rating (water) | - 4 to 60˚C, 25 to 140˚F |
| Temperature rating (air) | - 40 to 60˚C, - 40 to 140˚F |
| Storage temperature rating | - 40 to 60˚C, - 40 to 140˚F |
| Qualified pressure tested | 800 bar, 11,600 psi (open face) |
Materials, cables & terminations
| Connector body | Chloroprene rubber |
|---|---|
| Contacts | Female socket in gold plated brass UNS - C36000. Male contact in gold plated beryllium copper |
| Inline cable (2 ft, 60 cm) | 18 AWG, 0.82 mm2 synthetic rubber |
Wiring reference
Confirm the exact part’s drawing and contact numbering before wiring.
Inline cable colour code
- 1: Black
Micro Circular - 2, 3 and 4 contactsTechnical details +
Electrical & environmental
| Voltage rating | 300 V DC/AC rms |
|---|---|
| 2, 3 and 4 contacts current rating | 10 A per contact (max 20 A per connector) |
| Insulation resistance | > 200 MΩ |
| Contact resistance | < 0.01 Ω |
| Wet matings | > 500 |
| Temperature rating (water) | - 4 to 60˚C, 25 to 140˚F |
| Temperature rating (air) | - 40 to 60˚C, - 40 to 140˚F |
| Storage temperature rating | - 40 to 60˚C, - 40 to 140˚F |
| Qualified pressure tested | 1,400 bar, 20,300 psi (mated), 800 bar, 11,600 psi (open face) |
| Depth rating | PEEK 300 bar, 4,350 psi |
Materials, cables & terminations
| Connector body | Chloroprene rubber |
|---|---|
| Bulkhead body | Brass, stainless steel, titanium, anodised aluminium or PEEK |
| 2, 3 and 4 contacts | Gold plated brass UNS - C36000 |
| Location pin | Stainless steel AISI 303 |
| O-rings | Nitrile |
| Locking sleeves | ABS or stainless steel |
| Snap rings | Stainless steel AISI 302 |
| 2, 3 and 4 conductor inline cable (2 ft, 60 cm or 16 ft, 5 m) | 18 AWG, 0.82 mm2 synthetic rubber |
| 2, 3 and 4 contact bulkhead and PBOF leads (1 ft, 30 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
| OM leads (3", 7 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
Wiring reference
Confirm the exact part’s drawing and contact numbering before wiring.
Inline cable colour code
- 1: Black
- 2: White
- 3: Red
- 4: Green
* 3 conductor cable colour code: 1 black, 2 white, 3 green
Micro Circular - 5, 6, 8 and 9 contacts and G2 2, 3 and 4 contactsTechnical details +
Electrical & environmental
| Voltage rating | 300 V DC/AC rms |
|---|---|
| 5, 6, 8 and 9 contacts current rating | 5 A per contact (max 20 A per connector) |
| G2 2, 3 and 4 contacts current rating | 5 A per contact (max 20 A per connector) |
| Insulation resistance | > 200 MΩ |
| Contact resistance | < 0.01 Ω |
| Wet matings | > 500 |
| Temperature rating (water) | - 4 to 60˚C, 25 to 140˚F |
| Temperature rating (air) | - 40 to 60˚C, - 40 to 140˚F |
| Storage temperature rating | - 40 to 60˚C, - 40 to 140˚F |
| Qualified pressure tested | 1,400 bar, 20,300 psi (mated), 800 bar, 11,600 psi (open face) |
| Depth rating PEEK | 300 bar, 4,350 psi |
Materials, cables & terminations
| Connector body | Chloroprene rubber |
|---|---|
| Bulkhead body | Brass, stainless steel, titanium, anodised aluminium or PEEK |
| Bulkhead body (RA and WB) | Brass, stainless steel, titanium or anodised aluminium |
| 5, 6, 8, and 9 contacts and G2 2, 3 and 4 contacts | Female sockets in gold plated brass - UNS C36000, Male contacts in gold plated beryllium copper |
| Location pin | Stainless steel AISI 303 |
| O-rings | Nitrile |
| Locking sleeves | ABS or stainless steel |
| Snap rings | Stainless steel AISI 302 |
| 5, 6, 8 and 9 conductor inline cable (2 ft, 60 cm or 16 ft, 5 m) | 20 AWG, 0.52 mm2 synthetic rubber |
| G2 2, 3 and 4 conductor inline cable (2 ft, 60 cm) | 20 AWG, 0.52 mm2 synthetic rubber |
| 5, 6, 8 and 9 contact bulkhead and PBOF leads (1 ft, 30 cm) | 22 AWG, 0.33 mm2 coloured PTFE |
| G2 2, 3 and 4 contact bulkhead and PBOF leads 1(ft, 30 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
| 5, 6, 8 and 9 OM leads (3", 7 cm) | 22 AWG, 0.33 mm2 coloured PTFE |
| G2 2, 3 and 4 OM leads (3", 7 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
Wiring reference
Confirm the exact part’s drawing and contact numbering before wiring.
Inline cable colour code
- 1: Black
- 2: White
- 3: Red
- 4: Green
- 5: Orange
- 6: Blue
- 7: White/black
- 8: Red/black
- 9: Green/black
* 3 conductor cable colour code: 1 black, 2 white, 3 green
Micro Circular Double O-ring - 2, 3, and 4 contactsTechnical details +
Electrical & environmental
| Voltage rating | 300 V DC/AC rms |
|---|---|
| 2, 3 and 4 contacts current rating | 10 A per contact (max 20 A per connector) |
| Insulation resistance | > 200 MΩ |
| Contact resistance | < 0.01 Ω |
| Wet matings | > 500 |
| Temperature rating (water) | - 4 to 60˚C, 25 to 140˚F |
| Temperature rating (air) | - 40 to 60˚C, - 40 to 140˚F |
| Storage temperature rating | - 40 to 60˚C, - 40 to 140˚F |
| Qualified pressure tested | 1,400 bar, 20,300 psi (mated), 800 bar, 11,600 psi (open face) |
| Depth rating | PEEK 300 bar, 4,350 psi |
Materials, cables & terminations
| Connector body | Chloroprene rubber |
|---|---|
| Bulkhead body with 20 mm hex flats | Brass, titanium or anodised aluminium |
| Bulkhead body with 22 mm hex flats | Anodised aluminium or stainless steel |
| Bulkhead body (RA) | Aluminium or titanium |
| 2, 3 and 4 contacts | Gold plated brass UNS - C36000 |
| Location pin | Stainless steel AISI 303 |
| O-rings | Nitrile |
| Locking sleeves | ABS or stainless steel |
| Snap rings | Stainless steel AISI 302 |
| 2, 3 and 4 contact bulkhead leads (1 ft, 30 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
Wiring reference
Confirm the exact part’s drawing and contact numbering before wiring.
Leads colour code
- 1: Black
- 2: White
- 3: Red
- 4: Green
* 3 conductor leads colour code: 1 black, 2 white, 3 green
Micro Circular Double O-ring - 5, 6, 8 and 9 contacts and G2 2, 3 and 4 contactsTechnical details +
Electrical & environmental
| Voltage rating | 300 V DC/AC rms |
|---|---|
| 5, 6, 8 and 9 contacts current rating | 5 A per contact (max 20 A per connector) |
| G2 2, 3 and 4 contacts connector current rating | 5 A per contact (max 20 A per connector) |
| Insulation resistance | > 200 MΩ |
| Contact resistance | < 0.01 Ω |
| Wet matings | > 500 |
| Temperature rating (water) | - 4 to 60˚C, 25 to 140˚F |
| Temperature rating (air) | - 40 to 60˚C, - 40 to 140˚F |
| Storage temperature rating | - 40 to 60˚C, - 40 to 140˚F |
| Qualified pressure tested | 1,400 bar, 20,300 psi (mated), 800 bar, 11,600 psi (open face) |
| Depth rating PEEK | 300 bar, 4,350 psi |
Materials, cables & terminations
| Connector body | Chloroprene rubber |
|---|---|
| Bulkhead body with 20 mm hex flats | Brass, titanium or anodised aluminium |
| Bulkhead body with 22 mm hex flats | Anodised aluminium or stainless steel |
| Bulkhead RA body | Aluminium or titanium |
| 5, 6, 8 and 9 contacts and G2 2, 3 and 4 contacts | Female sockets in gold plated brass UNS C36000, Male contacts in gold plated beryllium copper |
| Location pin | Stainless steel AISI 303 |
| O-rings | Nitrile |
| Locking sleeves | ABS or stainless steel |
| Snap rings | Stainless steel AISI 302 |
| 5, 6, 8 and 9 contact bulkhead leads (1 ft, 30 cm) | 22 AWG, 0.33 mm2 coloured PTFE |
| G2 2, 3 and contact 4 bulkhead leads (1 ft, 30 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
Wiring reference
Confirm the exact part’s drawing and contact numbering before wiring.
Leads colour code
- 1: Black
- 2: White
- 3: Red
- 4: Green
- 5: Orange
- 6: Blue
- 7: White/black
- 8: Red/black
- 9: Green/black
* 3 conductor leads colour code: 1 black, 2 white, 3 green
Micro Circular - 10, 12 and 16 contactsTechnical details +
Electrical & environmental
| Voltage rating | 300 V DC/AC rms |
|---|---|
| Current rating | 5 A per contact (max 30 A per connector) |
| Insulation resistance | > 200 MΩ |
| Contact resistance | < 0,01 Ω |
| Wet matings | > 500 |
| Temperature rating (water) | - 4 to 60˚C, 25 to 140˚F |
| Temperature rating (air) | - 40 to 60˚C, - 40 to 140˚F |
| Storage temperature rating | - 40 to 60˚C, - 40 to 140˚F |
| Qualified pressure tested | 1,400 bar, 20,300 psi (mated), 800 bar, 11,600 psi (open face) |
| Depth rating PEEK | 300 bar, 4,350 psi |
Materials, cables & terminations
| Connector body | Chloroprene rubber |
|---|---|
| Bulkhead body | Brass, stainless steel, titanium, anodised aluminium or PEEK |
| Bulkhead body (RA) | Brass, stainless steel, titanium or anodised aluminium |
| Contacts | Female sockets in gold plated brass UNS - C36000, Male contacts in gold plated beryllium copper |
| O-rings | Nitrile |
| Locking sleeves | POM or stainless steel |
| Locking sleeves (RA) | RADLSA-M (black POM) |
| Snap rings | Stainless steel AISI 302 |
| Inline cable (2 ft, 60 cm) | 20 AWG, 0.52 mm2 synthetic rubber |
| Bulkhead and PBOF leads (1 ft, 30 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
| OM leads (3", 7 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
Wiring reference
Confirm the exact part’s drawing and contact numbering before wiring.
Inline cable colour code
- 1: Black
- 2: White
- 3: Red
- 4: Green
- 5: Orange
- 6: Blue
- 7: White/black
- 8: Red/black
- 9: Green/black
- 10: Orange/black
- 11: Blue/black
- 12: Black/white
- 13: Red/white
- 14: Green/white
- 15: Blue/white
- 16: Black/red
Micro Circular Double O-ring - 10, 12 and 16 contactsTechnical details +
Electrical & environmental
| Voltage rating | 300 V DC/AC rms |
|---|---|
| Current rating | 5 A per contact (max 30 A per connector) |
| Insulation resistance | > 200 MΩ |
| Contact resistance | < 0.01 Ω |
| Wet matings | > 500 |
| Temperature rating (water) | - 4 to 60˚C, 25 to 140˚F |
| Temperature rating (air) | - 40 to 60˚C, - 40 to 140˚F |
| Storage temperature rating | - 40 to 60˚C, - 40 to 140˚F |
| Qualified pressure tested | 1,400 bar, 20,300 psi (mated), 800 bar, 11,600 psi (open face) |
Materials, cables & terminations
| Connector body | Chloroprene rubber |
|---|---|
| Bulkhead body | Brass, titanium, anodised aluminium or stainless steel |
| Contacts | Female sockets in gold plated brass UNS - C36000, Male contacts in gold plated beryllium copper |
| O-rings | Nitrile |
| Locking sleeves | POM or stainless steel |
| Snap rings | Stainless steel AISI 302 |
| Bulkhead leads (1 ft, 30 cm) | 20 AWG, 0.52 mm2 coloured PTFE |
Wiring reference
Confirm the exact part’s drawing and contact numbering before wiring.
Leads colour code
- 1: Black
- 2: White
- 3: Red
- 4: Green
- 5: Orange
- 6: Blue
- 7: White/black
- 8: Red/black
- 9: Green/black
- 10: Orange/black
- 11: Blue/black
- 12: Black/white
- 13: Red/white
- 14: Green/white
- 15: Blue/white
- 16: Black/red
Micro Circular - 21 ContactsTechnical details +
Electrical & environmental
| Voltage rating | 300 V DC/AC rms |
|---|---|
| Current rating | 5 A per contact (max 40 A per connector) |
| Insulation resistance | > 200 MΩ |
| Contact resistance | < 0.01 Ω |
| Wet matings | > 500 |
| Temperature rating (water) | - 4 to 60˚C, 25 to 140˚F |
| Temperature rating (air) | - 40 to 60˚C, - 40 to 140˚F |
| Storage temperature rating | - 40 to 60˚C, - 40 to 140˚F |
| Qualified pressure tested | 1,400 bar, 20,300 psi (mated), 800 bar, 11,600 psi (open face) |
| Depth rating PEEK | 300 bar, 4,350 psi |
Materials, cables & terminations
| Connector body | Chloroprene rubber |
|---|---|
| Bulkhead body | Brass, stainless steel, titanium, anodised aluminium or PEEK |
| Contacts | Female sockets in gold plated brass UNS - C36000, Male contacts in gold plated beryllium copper |
| O-rings | Nitrile |
| Locking sleeves | POM or stainless steel |
| Snap rings | Stainless steel AISI 302 |
| Inline cable (2 ft, 60 cm) | 20 AWG, 0.52 mm2 PUR |
| Bulkhead and PBOF leads (1 ft, 30 cm) | 20 AWG, 0.52 mm2 white tagged PTFE |
| OM leads (3", 7 cm) | 20 AWG, 0.52 mm2 white tagged PTFE |
Wiring reference
Confirm the exact part’s drawing and contact numbering before wiring.
Inline cable colour code
- 1: Grey
- 2: Purple
- 3: Blue
- 4: Green
- 5: Yellow
- 6: Orange
- 7: White/black
- 8: White
- 9: White/brown
- 10: White/red
- 11: White/orange
- 12: White/yellow
- 13: White/green
- 14: White/blue
- 15: White/purple
- 16: White/grey
- 17: White/brown/black
- 18: White/red/black
- 19: White/orange/black
- 20: White/yellow/black
- 21: White/green/black
Images based on SubConn reference photographs from MacArtney. Illustrative references; connector details, supplied appearance and compatibility are confirmed with your quotation.
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