PCB Libraries Forum : Non-standard Package Pad Size

PCB Libraries Forum : Non-standard Package Pad Size https://www.PCBLibraries.com/forum/ Mon, 06 Apr 2026 22:01:04 +0000 Sun, 02 Jun 2013 23:09:24 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=954 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Non-standard Package Pad Size : Hi Tom ,Thanx for the reply ]]> https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3600.html#3600 Author: world.30
Subject: 954
Posted: 02 Jun 2013 at 11:09pm

Hi Tom ,

Thanx for the reply

]]> Sun, 02 Jun 2013 23:09:24 +0000 https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3600.html#3600 <![CDATA[Non-standard Package Pad Size : Please be my guest and download...]]> https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3597.html#3597 Author: Tom H
Subject: 954
Posted: 01 Jun 2013 at 8:39am

Please be my guest and download the Free "PCB Library Expert Lite" (LE Lite) here -

http://www.pcblibraries.com/forum/201302-released_topic946.html

Install it on your computer and it will auto-generate your footprint using component dimensions.

LE Lite exports the Footprint to 17 different CAD tool formats.

It should only take you 3 - 5 minutes to build any Footprint if you have the physical component dimensions.

Let me know if you like it.

]]> Sat, 01 Jun 2013 08:39:44 +0000 https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3597.html#3597 <![CDATA[Non-standard Package Pad Size : Hi Tom,Thanks for the reply. It's...]]> https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3596.html#3596 Author: world.30
Subject: 954
Posted: 01 Jun 2013 at 8:30am

Hi Tom,

Thanks for the reply. It's really helpful to me but I think PCB Library Expert (LE) is a tool of some software you're talking about.

If I have not any tool like LE, so in that case, is there any rule for such case when I have "L" mm Lead length gull wing type, like L+1 mm or L+ 0.5 mm for footprint.

I don't have IPC-7351 notes, so generally I do +1 mm in Lead length of a package footprint.

Thanks in advance

]]> Sat, 01 Jun 2013 08:30:59 +0000 https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3596.html#3596 <![CDATA[Non-standard Package Pad Size : Every component in the world...]]> https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3594.html#3594 Author: Tom H
Subject: 954
Posted: 01 Jun 2013 at 7:10am

Every component in the world is broken up into a "Lead Style" and the PCB Library Expert (LE) supports all component lead styles.

Here are the Lead Forms that LE supports -

Just open any component family with the appropriate Lead Form and type in the "L" dimension and the other dimensions can be fake. You are only interested in the pad size calculation for your rules or IPC-7351 3-Tier.

]]> Sat, 01 Jun 2013 07:10:10 +0000 https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3594.html#3594 <![CDATA[Non-standard Package Pad Size : Hi,I want to create to a non standard...]]> https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3593.html#3593 Author: world.30
Subject: 954
Posted: 01 Jun 2013 at 1:56am

Hi,

I want to create to a non standard part, footprint but the component datasheet does not provide the land Pattern dimensions.

There is only a dimensioned "Package Drawing" with Lead Lenth "L" mm .

Please tell what should be the Length of PAD footprint.

]]> Sat, 01 Jun 2013 01:56:22 +0000 https://www.PCBLibraries.com/forum/nonstandard-package-pad-size_topic954_post3593.html#3593