MCDC21M MICRO WET DUMMY CONNECTOR 21 Pins Underwater Dummy Plug Male

MCDC21M Micro Circular Dummy Connector — 21 Contacts

The MCDC21M is a 21-contact Micro Circular dummy connector in the male (pins) configuration. It is not an electrical part: it seals and protects an unmated 21-contact Micro Circular connector against seawater ingress, biofouling, grit and mechanical damage during storage, transit and service intervals.

21 Contacts Dummy Connector Male Version 7,000 m Depth Chloroprene Body IP68

Key Design Features

• Keyed to the shell: the dummy carries the same keyway and thread as the working connector, so it cannot be fitted to the wrong contact count.
• Same seal as the connector: the nitrile O-ring compresses against the same sealing face, keeping the unmated contacts dry.
• Chloroprene body: the same rubber as the connector body, tolerant of deck handling, UV and the full operating temperature range.
• Protects the wet-mate life: keeping the per-contact seals compressed and the bores clean is what preserves the 500-cycle rating of the working connector.
• Correct pairing: the F version covers male connectors, the M version covers female connectors.

Technical Specifications

Materials

Ordering & Compatibility

Typical Applications

Protecting unmated 21-contact ports on AUV payloads and compact multi-sensor packages.

Notes for Selection

The 21-contact shell is the most expensive face in the range, so a dummy on every unused port pays for itself the first time a cable is left off.