PCB Libraries Forum : IPC-7351C.opt File https://www.PCBLibraries.com/forum/ Mon, 13 Apr 2026 13:23:51 +0000 Sat, 12 Jun 2021 08:34:34 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=2928 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[IPC-7351C.opt File : Not immediately but we&#039;ll...]]> https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11684.html#11684 Author: Tom H
Subject: 2928
Posted: 12 Jun 2021 at 8:34am

Not immediately but we'll put it on the to do list. 

The next phase of V2021 development is to redesign all 25 CAD tool translator user interfaces and then rewrite all the translators. That process will take several months. 

]]> Sat, 12 Jun 2021 08:34:34 +0000 https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11684.html#11684 <![CDATA[IPC-7351C.opt File : Can you add support for ASSEMBLY_TOP...]]> https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11683.html#11683 Author: pzt648485640
Subject: 2928
Posted: 12 Jun 2021 at 2:15am

Can you add support for ASSEMBLY_TOP labels value?]]> Sat, 12 Jun 2021 02:15:33 +0000 https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11683.html#11683 <![CDATA[IPC-7351C.opt File : Here is the updated IPC-7351C...]]> https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11682.html#11682 Author: Tom H
Subject: 2928
Posted: 10 Jun 2021 at 9:38am

Here is the updated IPC-7351C .opt file - uploads/3/IPC-7351C.zip

Let us know if you still have issues. 
]]> Thu, 10 Jun 2021 09:38:14 +0000 https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11682.html#11682 <![CDATA[IPC-7351C.opt File : I think I know what happened.The...]]> https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11681.html#11681 Author: Tom H
Subject: 2928
Posted: 10 Jun 2021 at 8:56am

I think I know what happened. 

The IPC-7351C .opt file was created 2 months ago and there have been multiple updated to the Options since then and the IPC-7351C .opt file is corrupt and needs to be regenerated from scratch incorporating all the latest Option settings. 

There will be a new IPC-7351C Option file in the next V2021.08 pre-release 

Thank you for reporting this issue. We would have never known. 

]]> Thu, 10 Jun 2021 08:56:06 +0000 https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11681.html#11681 <![CDATA[IPC-7351C.opt File : Looks like IPC-7351C.opt lists...]]> https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11671.html#11671 Author: ransonjd
Subject: 2928
Posted: 10 Jun 2021 at 7:48am

Looks like IPC-7351C.opt lists heights in the comments for the Gullwing SOT parts.

</GullwingSOT>
      <InwardL>
        <Applications>
          <Application_0>
            <!--Height > 4.20 mm-->

Are these changes intentional too?

Under <BGANC>
PasteMaskExcess="0"
instead of PasteMaskExcess="100" in the default preferences

Under <TH_Terminal_Options>
HoleSizeRound="0.05" and PadSizeRound="0.01" are missing
]]> Thu, 10 Jun 2021 07:48:36 +0000 https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11671.html#11671 <![CDATA[IPC-7351C.opt File : TO-92 must have a round pin 1...]]> https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11669.html#11669 Author: Tom H
Subject: 2928
Posted: 09 Jun 2021 at 1:39pm

TO-92 must have a round pin 1 pad shape because the corner of a square pad cuts into the silkscreen outline. WE just discovered this last week. We updated the IPC-7351C .opt file for the V2021.08 release. 

There are two Inward L leads. 
  • Inward Flat Ribbon L Lead = 2-pin Molded Body component family (requires Height)
  • Inward L-Lead = multiple pin SOL component family (requires pin pitch)

]]> Wed, 09 Jun 2021 13:39:22 +0000 https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11669.html#11669 <![CDATA[IPC-7351C.opt File : I took a look at the 7351-C.opt,...]]> https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11667.html#11667 Author: ransonjd
Subject: 2928
Posted: 09 Jun 2021 at 12:00pm

I took a look at the 7351-C.opt, and it changes some things that I wouldn't have expected. Are these intentional?

On TO92 and TOCyl
Pin1PadShape="Sqr" 
instead of Pin1PadShape="Rnd" in the default preferences

Under <InwardL> the divisions are like
"<!--Height > 2.20 and <= 3.20 mm-->"
instead of
"<!--Pitch > 0.65 and  <= 080 mm-->"
in the default preferences

Under <BGANC>
PasteMaskExcess="0"
instead of PasteMaskExcess="100" in the default preferences

Under <TH_Terminal_Options>
HoleSizeRound="0.05" and PadSizeRound="0.01" are missing


It's IPC-7351C.opt that I was looking at.

]]> Wed, 09 Jun 2021 12:00:43 +0000 https://www.PCBLibraries.com/forum/ipc7351c-opt-file_topic2928_post11667.html#11667