PCB Libraries Forum : Calculation D2PAK https://www.PCBLibraries.com/forum/ Wed, 15 Apr 2026 04:11:09 +0000 Fri, 17 Jan 2014 08:53:03 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=1237 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Calculation D2PAK : Hi Tom,It is an thermal relief...]]> https://www.PCBLibraries.com/forum/calculation-d2pak_topic1237_post4854.html#4854 Author: ThijsVerdonschot
Subject: 1237
Posted: 17 Jan 2014 at 8:53am

Hi Tom,
 
It is an thermal relief pad and the manufacturur recommended shape is 2mm larget then the lagest size.
I will use the TO (DPAK) to calculate.
 
Thank you for your quick reply.
 
]]> Fri, 17 Jan 2014 08:53:03 +0000 https://www.PCBLibraries.com/forum/calculation-d2pak_topic1237_post4854.html#4854 <![CDATA[Calculation D2PAK : I bet the component mfr. recommended...]]> https://www.PCBLibraries.com/forum/calculation-d2pak_topic1237_post4853.html#4853 Author: Tom H
Subject: 1237
Posted: 17 Jan 2014 at 7:48am

I bet the component mfr. recommended pattern is not T-Shape, rather it's a full pad used for thermal relief.

You can use the TO (DPAK) component family to create a D2PAK footprint.

You can also select the "Footprint" tab and enter the mfr. recommended pattern (after you enter the component dimensions to calculate the IPC pattern).


]]> Fri, 17 Jan 2014 07:48:09 +0000 https://www.PCBLibraries.com/forum/calculation-d2pak_topic1237_post4853.html#4853 <![CDATA[Calculation D2PAK : I have to calculate a D2PAK...]]> https://www.PCBLibraries.com/forum/calculation-d2pak_topic1237_post4852.html#4852 Author: ThijsVerdonschot
Subject: 1237
Posted: 17 Jan 2014 at 5:55am

I have to calculate a D2PAK footprint from ST Electronics.

In the library expert I only see the option to calculate a TO (DPAK).

Is it the best way to use the maximum with for the e1 value since the D2PAK has a kind of a T-shape?
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