« previous next »
Pages: [1]   Go Down

Author Topic: What is the purpose of these holes on PCB?  (Read 1149 times)

0 Members and 1 Guest are viewing this topic.

Offline miketan3904Topic starter

  • Contributor
  • Posts: 38
  • Country: as
What is the purpose of these holes on PCB?
« on: October 22, 2020, 03:54:29 pm »
I have seen this kind of holes on the PCB of some modules (below shows some examples). Does anyone know the purpose of having these holes on the PCB?
Logged
 

Offline Alaezae

  • Contributor
  • Posts: 15
  • Country: us
Re: What is the purpose of these holes on PCB?
« Reply #1 on: October 22, 2020, 03:58:05 pm »
Probably mounting holes? I don’t know what else they would be.

I’m also a beginner, take my opinion with a grain of salt.
Logged
 

Offline atmfjstc

  • Regular Contributor
  • *
  • Posts: 121
  • Country: ro
Re: What is the purpose of these holes on PCB?
« Reply #2 on: October 22, 2020, 05:21:26 pm »
Definitely mounting holes.
Logged
 

Offline Siwastaja

  • Super Contributor
  • ***
  • Posts: 8183
  • Country: fi
Re: What is the purpose of these holes on PCB?
« Reply #3 on: October 22, 2020, 05:37:33 pm »
The latter one specifically, not having room for screw heads, you are likely supposed to run a cable tie through the holes.
Logged
 

Offline jfiresto

  • Frequent Contributor
  • **
  • Posts: 823
  • Country: de
Re: What is the purpose of these holes on PCB?
« Reply #4 on: October 22, 2020, 05:40:14 pm »
Or use nylon mounting hardware?
Logged
-John
 

Offline SerieZ

  • Regular Contributor
  • *
  • Posts: 191
  • Country: ch
  • Zap!
Re: What is the purpose of these holes on PCB?
« Reply #5 on: October 23, 2020, 09:55:44 am »
Some newbie PCB Designers like to forget these Holes and then you have big trouble in putting it in a case  ::)

Maybe also interesting for Beginners are the small golden dots top left and bottom right of the Mounting holes on the adafruit board. Those are fiducials and used by machines to know the Orientation of the Board for automated assembly etc.
Logged
As easy as paint by number.
 

Offline RoadRunner

  • Frequent Contributor
  • **
  • Posts: 378
  • Country: de
Re: What is the purpose of these holes on PCB?
« Reply #6 on: October 23, 2020, 11:02:36 am »
These are just mounting holes, As pointed out by other, Because of low clearance either nylon screws or cable ties can be used. 
Logged
 

Offline JacobPilsen

  • Regular Contributor
  • *
  • Posts: 140
  • Country: cz
Re: What is the purpose of these holes on PCB?
« Reply #7 on: October 23, 2020, 07:19:05 pm »
Maybe these are holes for better gluing with glue from a hot melt gun.
Logged
 

Offline Carl E

  • Contributor
  • Posts: 46
  • Country: us
Re: What is the purpose of these holes on PCB?
« Reply #8 on: October 23, 2020, 07:59:11 pm »
If they have traces going to them, they could be test points used by gen rad or other auto test equipment.
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee