PCB Libraries Forum : SIP Alignment https://www.PCBLibraries.com/forum/ Wed, 29 Jul 2026 14:25:56 +0000 Wed, 29 Jul 2026 12:58:46 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 30 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=3664 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[SIP Alignment : The E1 dimension is for the &#039;Offset&#039;...]]> https://www.PCBLibraries.com/forum/sip-alignment_topic3664_post14603.html#14603 Author: Tom H
Subject: 3664
Posted: 29 Jul 2026 at 12:58pm

The E1 dimension is for the 'Offset' from the center. 

If the pins are centered, do not enter a E1 dimension as it's Optional. 

There is no SIP 'Mirror' feature in the current V26.07 release. 

]]> Wed, 29 Jul 2026 12:58:46 +0000 https://www.PCBLibraries.com/forum/sip-alignment_topic3664_post14603.html#14603 <![CDATA[SIP Alignment : When did the direction of the...]]> https://www.PCBLibraries.com/forum/sip-alignment_topic3664_post14602.html#14602 Author: ransonjd
Subject: 3664
Posted: 29 Jul 2026 at 12:10pm

When did the direction of the E1 offset on SIP packages get flipped? 

It bit me on a new design, where a regenerated footprint had a mirrored layout. 

I think the new way is OK, I was just surprised.

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