SHX33 Deep-Sea Rubber-Molded Underwater Connectors, 7000 m
7000 m rated · 3 to 16 contacts · Gigabit Ethernet version
GDM Optical-Electrical Hybrid Underwater Connectors
Power + 4 optical fibers · 4.5 MPa mated · single-mode or multimode
GDM carries power and optical data through one underwater connector. Power contacts and four optical contacts share a sealed metal shell with radial and axial sealing and a vulcanized watertight backshell. It withstands 4.5 MPa hydrostatic pressure when mated and can be mated with water on the contact faces.
- Contacts
- 16 or 88 power + 4 optical
- Pressure rating
- 4.5 MPa mated
- Current rating
- 13 A (size 16), 33 A (size 10)
- Optical insertion loss
- ≤ 1 dB
- Temperature
- −10 to +65 °C
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Key features
- Power and data in one connector: power contacts plus 4 optical contacts, single-mode or multimode
- Radial and axial sealing, each rated 4.5 MPa; withstands 4.5 MPa hydrostatic pressure when mated
- Vulcanized watertight backshell
- Wet-mateable: can be mated with water on the contact faces, for quick installation
- Two sizes: M42 and M140 coupling threads
- Contact counts, fiber types and cable assemblies customized on request
Specifications
| Parameter | Value | Condition |
|---|---|---|
| Hydrostatic pressure, mated | 4.5 MPa | |
| Sealing, radial and axial | 4.5 MPa |
| Parameter | Value | Condition |
|---|---|---|
| Current rating | 33 A | Size 10 contacts |
| Current rating | 13 A | Size 16 contacts |
| Dielectric withstanding voltage | 6000 VAC | GDM140, size 10 contacts |
| Dielectric withstanding voltage | 1500 VAC | GDM140, size 16 contacts |
| Dielectric withstanding voltage | 1500 VDC | GDM42 |
| Insulation resistance | ≥ 1000 MΩ | |
| Optical insertion loss | ≤ 1 dB | Wavelength and test method to your requirements |
| Parameter | Value | Condition |
|---|---|---|
| Durability | 500 mating cycles | |
| Vibration | 10–500 Hz, 98 m/s² | |
| Bump | 1000 bumps, 68.6 m/s² | |
| Operating temperature | −10 to +65 °C | |
| Salt spray | 500 h | |
| Mold resistance | 28 days, grade 1 |
Parameters not listed above — for example vibration level, leak rate or other environmental tests — can be tested to your requirements, including third-party testing.
Versions
| Series code | Version | Notes |
|---|---|---|
| GDM42 | Small size, M42 coupling thread | |
| GDM140 | Large size, M140 coupling thread |
How to order
GDM [size] [type] [power contacts] [pin/socket] [optical contacts] [fiber]
Example: GDM140Z88P4E — M140 size receptacle, 88 power pin contacts, 4 multimode optical contacts
| Code segment | Options |
|---|---|
| Size | |
| Type | |
| Power contacts | |
| Contact type | |
| Optical contacts | |
| Fiber |
Typical applications
- ROVs and subsea vehicles needing power and data
- Seafloor observation networks
- Subsea cameras and sonar with fiber data links
- Offshore and oceanographic instruments
Frequently asked questions
What does wet-mateable mean for GDM?
GDM can be mated and unmated with water droplets on the contact surfaces, for fast installation. If you need to mate or unmate while submerged, tell us the depth and conditions and we will review it for your project.
What pressure can GDM withstand?
4.5 MPa hydrostatic pressure when mated, with radial and axial seals each rated 4.5 MPa.
Which fibers are available?
Single-mode (F) or multimode (E), four optical channels per connector.
Selection guides
Related series
SHX34 Large Rubber-Molded Underwater Connectors, 7000 m, up to 250 A
7000 m rated · 2 to 10 contacts at 10–15 A · 1-contact 250 A power version
From sample to production
Send your requirements
Part number, drawing, pin-out or a short description of your application.
Configuration and quote
Our engineers match the configuration and reply with a drawing and quotation.
Samples
Samples are built to order. The minimum order quantity is 10 pieces, and samples and production orders each take 4–8 weeks. Third-party testing to your specification is available on request.
Your approval
You test the samples in your own equipment and approve them.
Series production
Production follows the approved sample configuration, with machining, molding, plating and assembly in our own Shenyang factory.
Need a quote or a drawing?
Send your part number, pin-out or drawing. Every inquiry is acknowledged by email within 1 business day, and an engineer follows up with a matched configuration, drawing or quotation.