Author Topic: [Solved] PCB nylon standoffs that have metal solder joints on top  (Read 1061 times)

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Online ballsystemlordTopic starter

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[Solved] PCB nylon standoffs that have metal solder joints on top
« on: September 09, 2022, 06:34:13 am »
They're in this video: https://youtu.be/LI_5ANmkVqo?t=705

I wanted to learn about these standoffs. I want to understand the advantages and disadvantages. I want to better understand when a PCB is the wrong solution to the electronics problem -- like it is for part of that meter. But when I search online, I just get articles and products about standoffs to keep the PCB off of the case.

Can you direct me to the correct keywords and/or articles?

Thanks!
« Last Edit: September 19, 2022, 11:37:48 pm by ballsystemlord »
 

Online PlainName

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Re: PCB nylon standoffs that have metal solder joints on top
« Reply #1 on: September 09, 2022, 05:47:12 pm »
Probably threaded ceramic, perhaps with a small screw inserted. A turreted one might be better. Newark do a selection, but you can find them all over the place:

https://www.newark.com/c/connectors/crimp-terminals-solder-terminals-splices/thread-mount-turret-terminals
 
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Offline srb1954

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Re: PCB nylon standoffs that have metal solder joints on top
« Reply #2 on: September 10, 2022, 08:06:23 am »
Probably threaded ceramic, perhaps with a small screw inserted. A turreted one might be better. Newark do a selection, but you can find them all over the place:

https://www.newark.com/c/connectors/crimp-terminals-solder-terminals-splices/thread-mount-turret-terminals
More likely to be Teflon (PTFE) insulated in this application to achieve the lowest possibly leakage currents from sensitive circuit nodes.

Care must be taken with these type of insulators not to contaminate the insulator surface with oil, salts, etc from fingerprints and any flux residue must be be very carefully cleaned to optimise the long term insulation properties.
 
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Online Doctorandus_P

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Re: [Solved] PCB nylon standoffs that have metal solder joints on top
« Reply #3 on: September 27, 2022, 08:14:46 pm »
Go watch the video.
At 20:12 the schematic says it's teflon.
 


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