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SOFL Footprint Name

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Questions & Answers
Forum Description: issues and technical support
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=2948
Printed Date: 07 Oct 2024 at 1:22am


Topic: SOFL Footprint Name
Posted By: VBY-FESYS
Subject: SOFL Footprint Name
Date Posted: 05 Jul 2021 at 6:09am
Hello

In SOFL Component Type, the name of the footprint depend of family (prefix).

I want to create a SOT563 6 pin (JEDEC MO-293A variation UAAD) and I want to use the same footprint with the same name for transistors, diodes, IC...

In fact, I don't understand the reason why the family name is included in footprint name (in contrary SOT23-6 for example).

Best regards.


Replies:
Posted By: Tom H
Date Posted: 05 Jul 2021 at 9:05am
SC-70 is the 0.65 mm pitch IEC version of the SOT23. 
SC-75 is the 0.50 mm pitch IEC version of the SOT23.  

There are 3 pin pitches for SOT/SC series, and they all come in 3, 5 and 6 pin versions: 

 - 0.95 – SOT23 (IPC & JEDEC), SOT346 (EIA) and TO-236AB (JEDEC)
 - 0.65 – SC70 (IEC) and SOT323 (EIA)
 - 0.50 – SC75 (IEC) and SOT523 (EIA)

The 0.95 pitch SOT346 and the 0.65 pitch SOT323 and the 0.50 pitch SOT523 use the same physical characteristics as the SOT23. 

Do we use the EIA case code name or the IEC or the JEDEC? They're all the same package type per IPC-7351 guideline. 



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