PCB Libraries Forum : Leaded Horizontal TO-220 Pad Association https://www.PCBLibraries.com/forum/ Mon, 20 Apr 2026 15:22:54 +0000 Wed, 08 May 2013 12:17:29 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=892 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Leaded Horizontal TO-220 Pad Association : I was also building a TO-220FP...]]> https://www.PCBLibraries.com/forum/leaded-horizontal-to220-pad-association_topic892_post3500.html#3500 Author: rdl86626
Subject: 892
Posted: 08 May 2013 at 12:17pm

I was also building a TO-220FP footprint, horizontal. I put the numbers in, saved it to my library, clicked on it again and it turns vertical with all the wrong dimensions, h was 16.4 now says it is 3.6.

 
I output it to OrCAD PCB Editor and it comes out ok. Also I don't understand what the b dimension is. Is it the thickness of the terminal?
 
I am using 0.51 version.
 
A little confused.
Rick
]]> Wed, 08 May 2013 12:17:29 +0000 https://www.PCBLibraries.com/forum/leaded-horizontal-to220-pad-association_topic892_post3500.html#3500 <![CDATA[Leaded Horizontal TO-220 Pad Association : I am currently trying to build...]]> https://www.PCBLibraries.com/forum/leaded-horizontal-to220-pad-association_topic892_post3292.html#3292 Author: caclark
Subject: 892
Posted: 20 Mar 2013 at 11:46am

I am currently trying to build a TO-220 leaded transistor in PCB Libraries. All goes fine with the creation within the tool graphically, but when I import it into my PADS library (ver 9.3.1 if relevant) the 4 th pin does not have the large thermal pad associated to the hole (see image).

I also noticed that graphically the large pad shows as expected (see image).
However if I open the padstack viewer only the underlying hole is displayed there as well.

And as for the version I am on 2012.47

In any case I will add them directly to this post anyway.






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