PCB Libraries Forum : TO 92 https://www.PCBLibraries.com/forum/ Mon, 06 Apr 2026 22:43:47 +0000 Mon, 11 Aug 2025 07:20:58 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=3513 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[TO 92 : The pins are centered under the...]]> https://www.PCBLibraries.com/forum/to-92_topic3513_post13936.html#13936 Author: Tom H
Subject: 3513
Posted: 11 Aug 2025 at 7:20am

The pins are centered under the component package. 

But you can move them anywhere you want.

]]> Mon, 11 Aug 2025 07:20:58 +0000 https://www.PCBLibraries.com/forum/to-92_topic3513_post13936.html#13936 <![CDATA[TO 92 : Im main concern is the y location....]]> https://www.PCBLibraries.com/forum/to-92_topic3513_post13935.html#13935 Author: RonieRC
Subject: 3513
Posted: 11 Aug 2025 at 12:12am

Im main concern is the y location. How Foot print Expert derived it. The information we only provided is the "E,D & b" . when I check the pin location it doesnt use the E. Instead of E=1.33 ( my input) .its 1.3075 . Please clarify]]> Mon, 11 Aug 2025 00:12:43 +0000 https://www.PCBLibraries.com/forum/to-92_topic3513_post13935.html#13935 <![CDATA[TO 92 : We&#039;ve been using the same...]]> https://www.PCBLibraries.com/forum/to-92_topic3513_post13933.html#13933 Author: Tom H
Subject: 3513
Posted: 08 Aug 2025 at 7:50am

We've been using the same pattern since the 1980s. 

Pin 1 & 3 are on a 2.54 mm (0.100") grid in the x axis. 

The group of pins is centered in the component body to have equal distance from Pin 1 to the body and Pin 2 to the body and Pin 3 to the Body in the 'Y' axis. 

However, you can place the pins 'In Line' with a pin pitch of whatever you want. 

Either way, you're bending leads (lead forming) to fit in the holes. 

]]> Fri, 08 Aug 2025 07:50:26 +0000 https://www.PCBLibraries.com/forum/to-92_topic3513_post13933.html#13933 <![CDATA[TO 92 : How does the footprint Expert...]]> https://www.PCBLibraries.com/forum/to-92_topic3513_post13932.html#13932 Author: RonieRC
Subject: 3513
Posted: 08 Aug 2025 at 2:34am

How does the footprint Expert calculate the location of the pads/holes in TO92? Specially the Y location. Pitch is for the X location.


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