PCB Libraries Forum : TO (DPAK) Thermal Tab Under Component Body https://www.PCBLibraries.com/forum/ Fri, 26 Jun 2026 14:18:06 +0000 Thu, 26 Jun 2014 08:20:37 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=1341 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[TO (DPAK) Thermal Tab Under Component Body : We updated the TO (DPAK) in V2014.05to...]]> https://www.PCBLibraries.com/forum/to-dpak-thermal-tab-under-component-body_topic1341_post5463.html#5463 Author: Tom H
Subject: 1341
Posted: 26 Jun 2014 at 8:20am

We updated the TO (DPAK) in V2014.05 to allow the user to enter a negative value for the tab "L1" dimension.

This allows Library Expert users to create DPAK's with Thermal Tabs under the component body.

http://www.ti.com/lit/ds/symlink/lmz14201h.pdf

]]> Thu, 26 Jun 2014 08:20:37 +0000 https://www.PCBLibraries.com/forum/to-dpak-thermal-tab-under-component-body_topic1341_post5463.html#5463 <![CDATA[TO (DPAK) Thermal Tab Under Component Body : We&#039;ll look at getting this...]]> https://www.PCBLibraries.com/forum/to-dpak-thermal-tab-under-component-body_topic1341_post5312.html#5312 Author: chrisa_pcb
Subject: 1341
Posted: 15 May 2014 at 10:22am

We'll look at getting this into V2014.03, it should be an easy fix. That's scheduled for release in ~2 weeks.]]> Thu, 15 May 2014 10:22:18 +0000 https://www.PCBLibraries.com/forum/to-dpak-thermal-tab-under-component-body_topic1341_post5312.html#5312 <![CDATA[TO (DPAK) Thermal Tab Under Component Body : In the last year or so I have...]]> https://www.PCBLibraries.com/forum/to-dpak-thermal-tab-under-component-body_topic1341_post5311.html#5311 Author: caclark
Subject: 1341
Posted: 15 May 2014 at 7:46am

In the last year or so I have seen a resurgence in TO, & DPAK devices that do not have a tab (dim "L1") that protrudes beyond the body. But in the calculator you do not allow "L1" to be a negative number. So I am forced to use FP Designer for this variation on TO & DPAK's.

So what should take me only a few minutes to calculate takes me more than 30. And even at that I am required to have supporting documentation for all parts I create, and the FP Designer output print is no where near acceptable, so I then have to spend another 30 minutes creating documentation.

Ref device:
Manuf:TI
PN: LMZ14201HTZ
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