Rugged circular connectors are latching, threaded or break-away

Mouser is now stocking TriMate rugged circular connectors from AirBorn, pitching them against larger legacy MIL-DTL-38999 connectors “while delivering equal or superior performance”, claimed the component distributor.

Mouser Molex AirBourn TriMate circular connector

These come in three mating-retention forms on the plug side: traditional 38999-style ratcheting tri-start threaded, push-pull latch, and break-away for quick de-mating.

“Each plug type mates with the same receptacle to reduce manufacturing complexity and simplify the bill of materials,” said Mouser.


Gold plated MIL-C-39029 contacts are used, with solid-body pin and socket construction, with anti-over-stress socket hoods.


“TriMate connectors are easy to over-mould, and accept standard MIL-DTL-38999 backshells and banding accessories,” said Mouser. “The connectors are waterproof to MIL-STD-810 and withstand temperatures from -65 to +175°C.”

Aerospace and defence applications are envisages, including in radar, ground vehicles, drones and robotic systems, as is use in factory automation and mining.

Find Mouser’s TriMate connector web age here

Glenair is another company with a different spin on 38999 connectors

Steve Bush

Steve Bush is the long-standing technology editor for Electronics Weekly, covering electronics developments for more than 25 years. He has a particular interest in the Power and Embedded areas of the industry. He also writes for the Engineer In Wonderland blog, covering 3D printing, CNC machines and miscellaneous other engineering matters.

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