Suggestions to high temp connector

[Ghydda]

Hi gang,

I am in the process of specifying an automated test rig for populated PCBs.
The rig will occasionally or even regularly go into a temperature chamber, hence I am in need of some connectors (panel mounted sockets, cable mounted plugs) that can handle a wide temperature range.
I need at least 150 degC, but preferably 180 degC.

As I have numerous test points (up to 200) and a few power connections to transport in and out of the temp. chamber porthole, I need a 20-30 pole connector (low current signalling) and a 3 pole connector (mains or battery power).

There is always circular MIL spec connectors to fall back on to, but they cost more than an arm and a leg combined - there must be some industrial types, which can handle the job too.
I do not care if they are circular or square or triangle shaped, as long as the mating of the plug into socket can be securely fastened.
Any suggestions?



Cheers!

[mc172]

I just attacked one of those green Phoenix Contacts headers with a soldering iron and it's good at 200 °C.

[Ghydda]

Well it has to be, since it must survive a wave soldering process.
Long term though, not so much. The plastic will out-gas and become brittle.
But points for the hands on approach



Cheers!

[kosine]

They're not that cheap, but Harting connectors are widely used in the injection moulding industry. (For connecting hot runner systems, which as the name suggests, get quite warm for long periods of time.)

http://www.harting-usa.com/products-markets/harting-usacom/hanr-industrial-connectors11265/hoods-and-housings/han-inoxr_15807/

Inside they're just crimp terminals, so if you're really on a budget you could perhaps make something yourself by drilling holes into a suitable high temp material.

Another option might be to run a stripboard style PCB through the case and use an external edge connector.