How would you mount a PCB like the HX-2S-JH20? It doesn't have any screw holes. What about using plastic supports under the pads and ring terminals. Or maybe is better to solder it on pads on the main PCB as if it were a SMD component?
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A lump of double sided tape? – Kartman Feb 07 '22 at 12:45
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@Kartman I thought also to use hot glue, but I prefer a solution that allows for the component removal. Double sided tape seems not robust enough to me. – stenio Feb 07 '22 at 13:56
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I would probably mount it using screw terminals on the main PCB, which you connect it through.
If you don't want to connect it to the main PCB, just leave the terminals unconnected there. Then you can connect a cable with a ring terminal with the same screw.
There are plenty of different models out there, I've used these in the past:
WE WP-SMBU
Klas-Kenny
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These modules are usually designed to be mounted with standard 0.1" pin headers.
Lior Bilia
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1It doesn’t seem right to me: the holes diameter is 3.2 mm, too big for a standard pin header. – stenio Feb 07 '22 at 13:25