PCB Libraries Forum : SOT223 pin numbering

PCB Libraries Forum : SOT223 pin numbering https://www.PCBLibraries.com/forum/ Mon, 06 Apr 2026 20:47:19 +0000 Wed, 27 Mar 2013 08:47:43 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=902 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[SOT223 pin numbering : Correction,You are right, PSpice...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3331.html#3331 Author: hmartins
Subject: 902
Posted: 27 Mar 2013 at 8:47am

Correction,

You are right, PSpice doesn't care if I change pin numbers in Capture Edit_Part. I had that problem in the past but may be for other reason or in the presence of some other circumstances.

I tested and you are right. I apologize.

Regards
Martins
]]> Wed, 27 Mar 2013 08:47:43 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3331.html#3331 <![CDATA[SOT223 pin numbering : I can change Orcad Capture pin...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3330.html#3330 Author: hmartins
Subject: 902
Posted: 27 Mar 2013 at 7:26am

I can change Orcad Capture pin numbers editing the part but then later PSpice models pins will not correspond to the pins in diagram and issue an error, somelhing like pin_number_mismatch.

Seems to me that you should also allow selection from 0, not just from 1.

I solved the problem several times already modifying the script before running the bat file.

As example, in SOT223-4.scr I modified the bolded line:

# Pin Generation
add pin
setwindow Form.mini
FORM mini pad_name r197_89
FORM mini next_pin_number 0

Regards
Martins
]]> Wed, 27 Mar 2013 07:26:55 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3330.html#3330 <![CDATA[SOT223 pin numbering : You can change orcad capture pin...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3329.html#3329 Author: rdl86626
Subject: 902
Posted: 27 Mar 2013 at 7:14am

You can change orcad capture pin numbers by editing the part. click on the part, right mouse button, edit part. When you leave out of edit you can save the change for all parts or just the one. Hope this helps.]]> Wed, 27 Mar 2013 07:14:14 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3329.html#3329 <![CDATA[SOT223 pin numbering : "Just select any pin and...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3321.html#3321 Author: hmartins
Subject: 902
Posted: 26 Mar 2013 at 7:43am

"Just select any pin and "Right Mouse Button > Properties" and enter the new Pin Name value."

I can't. It doesn't allow me to change pin numbers (inside capture) and, as much as I know, if I do that PSpice will argue that pins are messed. I think PSpice pin number models must correspond to pin capture pin numbers.

May be I can change by Right Mouse->Edit Part, but I thik I will mess things with PSpice.
]]> Tue, 26 Mar 2013 07:43:36 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3321.html#3321 <![CDATA[SOT223 pin numbering : No, no. I did not rename anything.The...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3320.html#3320 Author: hmartins
Subject: 902
Posted: 26 Mar 2013 at 7:29am

No, no. I did not rename anything.

The above list with three component types is just an example of how different components (and packages) are arranged in terms of pin numbers.

AD8051 is indeed AD8531 (I apologize for the mistake) and is SOIC8.

NDT8055 and 14N60* (mosfets) are SOC223

H11AV1 (optocoupler) is DIP6.

In Orcad Capture, the mosfets NDT8055 and 14N60 have pin numbers from 0 to 2 whose names are: s, g, d respectively.

Note*
14N60 was indeed TO220 but for other peculiar reason I created a 'special' SOC223 so that I can solder TO220 as if it would be an SMD device. Anyway, in Orcad Capture the pin numbering is the sae as mosfet NDT8055.]]> Tue, 26 Mar 2013 07:29:49 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3320.html#3320 <![CDATA[SOT223 pin numbering : Martins,Why don't you renamethe...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3319.html#3319 Author: Tom H
Subject: 902
Posted: 26 Mar 2013 at 6:52am

Martins,

Why don't you rename the SOT223 Pins -, +, V-, Out, V+ or S, D, G or E, B, C?

Just select any pin and "Right Mouse Button > Properties" and enter the new Pin Name value.

]]> Tue, 26 Mar 2013 06:52:34 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3319.html#3319 <![CDATA[SOT223 pin numbering : I apparently solved the problem...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3318.html#3318 Author: hmartins
Subject: 902
Posted: 26 Mar 2013 at 2:56am

I apparently solved the problem the following way:

In SOT223-4.scr in:

# Pin Generation
add pin
setwindow Form.mini
FORM mini pad_name r197_89
FORM mini next_pin_number 0
rotate
iangle 270
FORM mini pintype_mechanical NO
FORM mini offsetx 0
FORM mini offsety 0
setwindow pcb
pick -2.3 -3.025
pick 2.3 -3.025
pick 0 -3.025
setwindow Form.mini
FORM mini pad_name r197_319
iangle -180
setwindow pcb
pick 0 3.025
done

I changed the bolded line to:

FORM mini next_pin_number 0
Them I rerun he batch file.

It seems to have solved the problem (as time goes by it will become clear).

Software should include an easy way to define first pin number.

Martins
]]> Tue, 26 Mar 2013 02:56:12 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3318.html#3318 <![CDATA[SOT223 pin numbering : Ok.Orcad Capture 'sees'...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3317.html#3317 Author: hmartins
Subject: 902
Posted: 26 Mar 2013 at 2:49am

Ok.

Orcad Capture 'sees' AD8051 as having pins 2, 3, 4, 6, 7 for -, +, V-, Out, V+.

Orcad Capture 'sees' NDT8055 and 14N60 (mosfets) as havin pins 0, 1, 2 for s, g, d.

Orcad Capture 'sees' H11AV1 (optocoupler) as having pins 1, 2, 4, 5, 6 for Anode, Cathode, E, B, C.

Regards
Hmartins
]]> Tue, 26 Mar 2013 02:49:17 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3317.html#3317 <![CDATA[SOT223 pin numbering : Please note these pin numbers...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3315.html#3315 Author: hmartins
Subject: 902
Posted: 25 Mar 2013 at 6:08pm

Please note these pin numbers I refer are internal Orcad Capture pin numbers, not manufacturer numbers or the usual way we count pins.

I don't have the system here, but as much as I remember it is mosfets NDT3055 and NDT2955. Same for SIPC14N60 (also mosfet).

I suppose from Orcad default libs.

Meanwhile I found out that in script file there is something like "NEXTPIN 1", that I changed to "NEXTPIN 0" and rerun batch file.

It seems OK now. Capture's 'see footprint' (just by memory, don't forget) gives correct result.

If you need more details I can give them tomorrow.

Martins
]]> Mon, 25 Mar 2013 18:08:35 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3315.html#3315 <![CDATA[SOT223 pin numbering : I've been doing PCB design...]]> https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3313.html#3313 Author: Tom H
Subject: 902
Posted: 25 Mar 2013 at 12:55pm

I've been doing PCB design since 1974 and I never heard of "Pin 0" before.

Is that new?

]]> Mon, 25 Mar 2013 12:55:29 +0000 https://www.PCBLibraries.com/forum/sot223-pin-numbering_topic902_post3313.html#3313