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Component Pin size vs PCB hole Size - when Creating Footprint
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Tewski 3 years ago
Hi Friends! I am about to create a new PCB footprint for some header connectors that I need to Custom make and have 2 questions below. Question 1: The pins of the component I want to use has a diameter width of 1.1mm. -Should I make the pin holes in the PCB footprint to be exactly 1.1mm dia width as well, or should I make them slightly larger so that I make sure they will fit? If Yes, on making them larger, what would be a good value? Is there a standard rule here? Question 2: The Spacing between the pin´s on the component is a standard of 2.54mm. When creating the right distance between the holes in the PCB footprint, Should the distance between the Pin-Holes be measured between the center of each hole? Apologies for my noob questions. Thank you for your time and help! //Ted
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andyfierman 3 years ago
@Tewski, Welcome to EasyEDA. Get a copy of the component datasheet and any other documents necessary and find the PCB Footprint drawing and dimensions. They will give you the hole dimensions and the centre to centre pin spacings. Set the hole diameters in your Footprint to the diameters given in the Footprint drawings in the datasheet: JLCPCB will automatically increase the drill diameters to allow for the through hole plating thickness. To get the best out of EasyEDA, please read: [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a) and the documents that it links to before starting your project. The Tutorial (1) and the two checklists (4) and (6) are essential reading but you will also find (2.2) and, if you need to design your own Symbols and Footprints, (2.3) helpful.
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Tewski 3 years ago
@andyfierman Thank you for your reply and the welcoming. I checked the datasheet again, and there it was! I didn´t realize there was a section for the required PCB layout as well. Thanks for pointing that out. Have a great one. //Ted
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andyfierman 3 years ago
You may find these topics helpful: [https://easyeda\.com/andyfierman/Elements\_of\_a\_simple\_PCB\-e42c7b2a4e17449f821a97d04806aeeb](https://easyeda.com/andyfierman/Elements_of_a_simple_PCB-e42c7b2a4e17449f821a97d04806aeeb)<br> <br> [https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6](https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6)<br> <br> [https://easyeda.com/forum/topic/How-to-represent-off-board-and-not-fitted-components-e03ea0937f924ab2a2b447c7445fcecf](https://easyeda.com/forum/topic/How-to-represent-off-board-and-not-fitted-components-e03ea0937f924ab2a2b447c7445fcecf)
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