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SOT-89 package calculator needed

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Product Suggestions
Forum Description: request new features
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=2648
Printed Date: 30 Oct 2025 at 5:33pm


Topic: SOT-89 package calculator needed
Posted By: caclark
Subject: SOT-89 package calculator needed
Date Posted: 02 Jul 2020 at 4:49am
I have recently seen a huge decrease in the number of SOT-223 packages requested. Instead they are moving to a SOT-89 package (similar premis as SOT-223, only flat-lead example linked below).

Note:
Some however do have different "b" values for the middle pin on the three lead side So this needs to be taken into account. An example datasheet of this is linked below.

uploads/1152/TQP369185_Data_Sheet-1500753.pdf" rel="nofollow - uploads/1152/TQP369185_Data_Sheet-1500753.pdf


Replies:
Posted By: Tom H
Date Posted: 02 Jul 2020 at 8:10am
There doesn't seem to be a standard SOT-89. 

Some have Pin 2 with chamfer corners, some a right angle. 

We build SOT-89 internally custom for each manufacturer recommended pattern and put them on POD.
 


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