MCBH5M-SS, MCBH miniature bulkhead connector, suitable for 4000 metres

MCBH5M-SS Micro Circular Bulkhead Connector — Overview

The MCBH5M-SS is a 5-contact Micro Circular bulkhead subsea connector, male (pins) face, wet-mateable and rated to 10 A per contact (30 A per connector) at 7,000 m working depth. It mounts through a standard 7/16-20 UNF-2A hull penetration and is supplied with colour-coded PTFE leads for direct splicing inside the housing.

5 Contacts 600 V AC/DC 10 A per Contact 7,000 m Depth 500+ Wet Matings IP68

Key Design Features

• Wet-mateable: mate and demate in seawater; each contact carries its own moulded O-ring seal, so a single seal failure does not flood the connector.
• SubConn Compatible: identical face geometry, contact pitch and 7/16-20 UNF-2A thread, so it retrofits existing SubConn panels and harnesses without re-machining.
• Gold-plated contacts: brass UNS-C36000 contacts hold contact resistance below 0.01 Ω across the full 500-cycle life.
• 10 A per contact: rated current with a 30 A connector limit for the 5-contact shell.
• Pressure qualified: 1,400 bar mated design depth, 800 bar open face, so the face survives handling and storage unmated.
• 316L stainless steel body: matched to the housing material to avoid galvanic couples; brass, 316L stainless, titanium, anodised aluminium and PEEK are available across the range.

Technical Specifications

Materials

Leads & Termination

Mating & Compatibility

Typical Applications

Long-term immersion instruments, stainless or titanium housings, mixed-metal installations where brass is not acceptable.

Notes for Selection

The stainless shell is specified for permanent seabed installations; the listing states a 4,000 m working depth for this variant, and the connector is otherwise identical to the brass 5-contact part.