THT: What is a squared annular “ring”? [duplicate]












6












$begingroup$



This question already has an answer here:




  • Square vs Round pad

    4 answers




At least in KiCad, the footprints of through-hole pin headers have one squared annular “ring”, the other ones are round:



enter image description here



What does the square indicate?



(Also I’m wondering if there is perhaps a convention of connecting GND to it.)






kicad footprint through-hole







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$endgroup$



marked as duplicate by Marcus Müller, pipe, Finbarr, Bimpelrekkie, RoyC 11 hours ago


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.














  • 6




    $begingroup$
    have you also noticed that the square usually has a 1 label?
    $endgroup$
    – jsotola
    yesterday






  • 4




    $begingroup$
    I'd say clear duplicate.
    $endgroup$
    – Marcus Müller
    yesterday






  • 1




    $begingroup$
    At least for KiCad the answer is very simple. It is specified that way in the library convention: kicad-pcb.org/libraries/klc/F7.3 (Answer in comments as i can not create an answer to a duplicate question.) We are however slowly transitioning to using rounded rectangle pads instead of square ones. (Benefits: Better solder joint, more space for traces.)
    $endgroup$
    – Rene Pöschl
    11 hours ago


















6












$begingroup$



This question already has an answer here:




  • Square vs Round pad

    4 answers




At least in KiCad, the footprints of through-hole pin headers have one squared annular “ring”, the other ones are round:



enter image description here



What does the square indicate?



(Also I’m wondering if there is perhaps a convention of connecting GND to it.)






kicad footprint through-hole







share|improve this question









$endgroup$



marked as duplicate by Marcus Müller, pipe, Finbarr, Bimpelrekkie, RoyC 11 hours ago


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.














  • 6




    $begingroup$
    have you also noticed that the square usually has a 1 label?
    $endgroup$
    – jsotola
    yesterday






  • 4




    $begingroup$
    I'd say clear duplicate.
    $endgroup$
    – Marcus Müller
    yesterday






  • 1




    $begingroup$
    At least for KiCad the answer is very simple. It is specified that way in the library convention: kicad-pcb.org/libraries/klc/F7.3 (Answer in comments as i can not create an answer to a duplicate question.) We are however slowly transitioning to using rounded rectangle pads instead of square ones. (Benefits: Better solder joint, more space for traces.)
    $endgroup$
    – Rene Pöschl
    11 hours ago
















6












6








6


1



$begingroup$



This question already has an answer here:




  • Square vs Round pad

    4 answers




At least in KiCad, the footprints of through-hole pin headers have one squared annular “ring”, the other ones are round:



enter image description here



What does the square indicate?



(Also I’m wondering if there is perhaps a convention of connecting GND to it.)






kicad footprint through-hole







share|improve this question









$endgroup$





This question already has an answer here:




  • Square vs Round pad

    4 answers




At least in KiCad, the footprints of through-hole pin headers have one squared annular “ring”, the other ones are round:



enter image description here



What does the square indicate?



(Also I’m wondering if there is perhaps a convention of connecting GND to it.)





This question already has an answer here:




  • Square vs Round pad

    4 answers







kicad footprint through-hole




kicad footprint through-hole






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked yesterday









fekleefeklee

7011024




7011024




marked as duplicate by Marcus Müller, pipe, Finbarr, Bimpelrekkie, RoyC 11 hours ago


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.









marked as duplicate by Marcus Müller, pipe, Finbarr, Bimpelrekkie, RoyC 11 hours ago


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.










  • 6




    $begingroup$
    have you also noticed that the square usually has a 1 label?
    $endgroup$
    – jsotola
    yesterday






  • 4




    $begingroup$
    I'd say clear duplicate.
    $endgroup$
    – Marcus Müller
    yesterday






  • 1




    $begingroup$
    At least for KiCad the answer is very simple. It is specified that way in the library convention: kicad-pcb.org/libraries/klc/F7.3 (Answer in comments as i can not create an answer to a duplicate question.) We are however slowly transitioning to using rounded rectangle pads instead of square ones. (Benefits: Better solder joint, more space for traces.)
    $endgroup$
    – Rene Pöschl
    11 hours ago
















  • 6




    $begingroup$
    have you also noticed that the square usually has a 1 label?
    $endgroup$
    – jsotola
    yesterday






  • 4




    $begingroup$
    I'd say clear duplicate.
    $endgroup$
    – Marcus Müller
    yesterday






  • 1




    $begingroup$
    At least for KiCad the answer is very simple. It is specified that way in the library convention: kicad-pcb.org/libraries/klc/F7.3 (Answer in comments as i can not create an answer to a duplicate question.) We are however slowly transitioning to using rounded rectangle pads instead of square ones. (Benefits: Better solder joint, more space for traces.)
    $endgroup$
    – Rene Pöschl
    11 hours ago










6




6




$begingroup$
have you also noticed that the square usually has a 1 label?
$endgroup$
– jsotola
yesterday




$begingroup$
have you also noticed that the square usually has a 1 label?
$endgroup$
– jsotola
yesterday




4




4




$begingroup$
I'd say clear duplicate.
$endgroup$
– Marcus Müller
yesterday




$begingroup$
I'd say clear duplicate.
$endgroup$
– Marcus Müller
yesterday




1




1




$begingroup$
At least for KiCad the answer is very simple. It is specified that way in the library convention: kicad-pcb.org/libraries/klc/F7.3 (Answer in comments as i can not create an answer to a duplicate question.) We are however slowly transitioning to using rounded rectangle pads instead of square ones. (Benefits: Better solder joint, more space for traces.)
$endgroup$
– Rene Pöschl
11 hours ago






$begingroup$
At least for KiCad the answer is very simple. It is specified that way in the library convention: kicad-pcb.org/libraries/klc/F7.3 (Answer in comments as i can not create an answer to a duplicate question.) We are however slowly transitioning to using rounded rectangle pads instead of square ones. (Benefits: Better solder joint, more space for traces.)
$endgroup$
– Rene Pöschl
11 hours ago












1 Answer
1






active

oldest

votes


















18












$begingroup$

It’s just a quick and easy way to distinguish which connector pad is pin 1.



Particularly when there is no silkscreen present or just when routing the PCB.






share|improve this answer









$endgroup$









  • 8




    $begingroup$
    And there is not a convention of connecting ground to it! Don't even think that thought!
    $endgroup$
    – TimWescott
    yesterday






  • 10




    $begingroup$
    Of course there's a convention of connecting ground to it. It's just that there are also 17 other conventions.
    $endgroup$
    – Russell Borogove
    yesterday


















1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









18












$begingroup$

It’s just a quick and easy way to distinguish which connector pad is pin 1.



Particularly when there is no silkscreen present or just when routing the PCB.






share|improve this answer









$endgroup$









  • 8




    $begingroup$
    And there is not a convention of connecting ground to it! Don't even think that thought!
    $endgroup$
    – TimWescott
    yesterday






  • 10




    $begingroup$
    Of course there's a convention of connecting ground to it. It's just that there are also 17 other conventions.
    $endgroup$
    – Russell Borogove
    yesterday
















18












$begingroup$

It’s just a quick and easy way to distinguish which connector pad is pin 1.



Particularly when there is no silkscreen present or just when routing the PCB.






share|improve this answer









$endgroup$









  • 8




    $begingroup$
    And there is not a convention of connecting ground to it! Don't even think that thought!
    $endgroup$
    – TimWescott
    yesterday






  • 10




    $begingroup$
    Of course there's a convention of connecting ground to it. It's just that there are also 17 other conventions.
    $endgroup$
    – Russell Borogove
    yesterday














18












18








18





$begingroup$

It’s just a quick and easy way to distinguish which connector pad is pin 1.



Particularly when there is no silkscreen present or just when routing the PCB.






share|improve this answer









$endgroup$



It’s just a quick and easy way to distinguish which connector pad is pin 1.



Particularly when there is no silkscreen present or just when routing the PCB.







share|improve this answer












share|improve this answer



share|improve this answer










answered yesterday









Edgar BrownEdgar Brown

6,8692837




6,8692837








  • 8




    $begingroup$
    And there is not a convention of connecting ground to it! Don't even think that thought!
    $endgroup$
    – TimWescott
    yesterday






  • 10




    $begingroup$
    Of course there's a convention of connecting ground to it. It's just that there are also 17 other conventions.
    $endgroup$
    – Russell Borogove
    yesterday














  • 8




    $begingroup$
    And there is not a convention of connecting ground to it! Don't even think that thought!
    $endgroup$
    – TimWescott
    yesterday






  • 10




    $begingroup$
    Of course there's a convention of connecting ground to it. It's just that there are also 17 other conventions.
    $endgroup$
    – Russell Borogove
    yesterday








8




8




$begingroup$
And there is not a convention of connecting ground to it! Don't even think that thought!
$endgroup$
– TimWescott
yesterday




$begingroup$
And there is not a convention of connecting ground to it! Don't even think that thought!
$endgroup$
– TimWescott
yesterday




10




10




$begingroup$
Of course there's a convention of connecting ground to it. It's just that there are also 17 other conventions.
$endgroup$
– Russell Borogove
yesterday




$begingroup$
Of course there's a convention of connecting ground to it. It's just that there are also 17 other conventions.
$endgroup$
– Russell Borogove
yesterday



-

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