Electro-Optic Connector

MarineConn Products - Subsea Connectors, Underwater Antennas and Marine Equipment

Ultra-Miniature Hermetic Underwater Connector

Description: Ultra-miniature hermetic connector for compact subsea instruments and miniature ROV payloads. Small sealed contacts for deep-water housings and sensors.

The ultra-miniature hermetic connector series squeezes sealed multi-core interconnects into the smallest practical envelope: micro-diameter shells, straight and right-angle exits, and 3–6 contact inserts. It is meant for sensor heads, pointer bodies and other subsea parts where every millimeter of diameter counts.

Product Highlights

  • Micro envelope: shell diameters at the bottom of the range for slim sensor and pointer bodies.
  • Straight and right-angle exits: the series includes both inline and 90° cable exits to route wiring in tight volumes.
  • 3–6 contact inserts: pick the insert that matches your circuit count without paying for unused contacts.
  • Sealed by construction: potted inserts and O-ring seated shells keep the penetration watertight at depth.

Key Specifications

Contact arrangements3 / 4 / 5 / 6 contacts per insert
Shell stylesStraight and right-angle (90°) cable exits
Contact platingGold-plated copper alloy
Shell materialStainless steel
SealingO-ring seat + potted insert
MountingThreaded micro bulkhead
TerminationFine-gauge pigtail leads
Rated depthOn request — per shell size

Structure & Sealing

Each shell is machined from stainless bar with a micro bulkhead thread; the potted contact insert seats behind an O-ring shoulder. Cable exits are molded straight or at 90° so the harness can hug the housing wall. The mating micro plug locks with a small knurled ring.

Ultra-Miniature Hermetic Connector - Ultra-miniature hermetic connector product photo 1

Ultra-Miniature Hermetic Connector - Ultra-miniature hermetic connector product photo 2

Ultra-Miniature Hermetic Connector - Ultra-miniature hermetic connector product photo 3

Ultra-Miniature Hermetic Connector - Ultra-miniature hermetic connector product photo 4

Ultra-Miniature Hermetic Connector - Ultra-miniature hermetic connector product photo 5

Ultra-Miniature Hermetic Connector - Ultra-miniature hermetic connector product photo 6

Applications

  • Slim sensor probes and CTD pointers
  • Micro-ROV and inspection-class vehicle heads
  • Miniaturized camera and sonar modules
  • Dental-scale tools adapted for subsea work

Customization & OEM

  • Contact count and shell length to spec
  • Right-angle exit orientation
  • Cable type and micro-connector tails
  • Custom micro threads

Packaging & Delivery

Each connector is shipped in an ESD-safe bag with a protective cap on the mating face, packed in a foam-lined carton. Lead time depends on configuration and quantity — contact us for a current schedule. DHL / FedEx / air / sea freight supported.

FAQ

What is the smallest shell diameter in the series?
Dimensions are tabulated per insert — request the series drawing for the full size table.

Can the 90° exit point in a custom direction?
Yes, exit orientation can be set at assembly.

Is this series mated with a standard tool?
Yes, the micro coupling ring is hand-tightened; no special tooling is needed.

Do you support prototype quantities?
Yes, prototypes before volume production are a normal workflow here.