Category:PCB PCB Design Rules

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Initially PCBs were designed manually by creating a photomask on a clear mylar sheet, usually at two or four times the true size. Starting from the schematic diagram the component pin pads were laid out on the mylar and then traces were routed to connect the pads. If you have many questions of PCB Design, please come here!

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We all know that plated-through hole is should be larger than lead diamater, but how much larger should it be to get good solder wetting? Reply 2016-08-01 09:21:13
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Mike Sharkey

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Can anyone give me suggestions on how much clearance around the component lead I should have in order to get good solder wetting and adhesion.
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Statement: This post is only the personal view of the author and does not represent the opinions of ALLPCB.com.

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I don't think you should depend on the holes to locate the part when tolerances are important for you.

timmy.hadwen

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Making up a jig to hold the parts in the proper location while they are being soldered. It can be fancy for wave soldering or something simple that holds the parts while being hand soldered.
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