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Products => Test Equipment => Topic started by: t1d on January 19, 2020, 04:41:35 am

Title: Need a recommendation for test fixture components **Solved**
Post by: t1d on January 19, 2020, 04:41:35 am

I am building a DIY Curve Tracer. I need quick disconnect fixtures for individual Discretes, BJTs and MOSFETs... So, two pole and three pole... That will clamp down on the DUT pins... Using levers, or push buttons... I would rather stay away from screw clamps... Panel mount. Specific model numbers would be great.

The WAGO line looks good, but the clamps are for wires and I am concerned that they will not close adequately on the thin component pins. And, where to buy them... Mouser doesn't seem to have them???

I have thought about DIYing this... Three conductive springs with a cap across the top and individual signal wires underneath... Push the cap back to cause the springs to flex open. Insert the legs of the DUT. Release to clamp.
(https://www.eevblog.com/forum/testgear/need-a-recommendation-for-test-fixture-components/?action=dlattach;attach=910454)

But, are there conductive springs that would accept solder and not introduce excessive resistance? If so, do they have a specific name? Retailer?

Suggestions, please and thank you.

Title: Re: Need a recommendation for test fixture components
Post by: t1d on January 19, 2020, 08:02:13 am

I came up with a simple solution that is compact, cheap and easily sourced... A 16 Pin ZIF. Here's my layout. It allows two components to be compared, or matched.
(https://www.eevblog.com/forum/testgear/need-a-recommendation-for-test-fixture-components/?action=dlattach;attach=910478)