Open Thread for Parts with Errors

Here you can find discussions pertaining to finding or creating Symbols and package footprints. Anything to do with Schematic or layout parts will be placed in this discussion.

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Open Thread for Parts with Errors

Postby Nolan Johnson » Mon May 14, 2012 9:30 am

We're opening up this thread for reports of parts that may have an error in the definition. If you find an inaccuracy in a part, feel free to add it to this discussion thread. PCB123 technical support can then keep you updated as to the resolution status.
Nolan Johnson
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Re:Open Thread for Parts with Errors

Postby Zheng Li » Mon May 14, 2012 9:30 am

I used the footprint 68_PIN_SCSI_MALE (in a custom part) and received the following DRC error: Pad annular ring too small with object U1.69. Required annular is 15.0 mils. Actual annular is 4.0 mils. Thanks!
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Re:Open Thread for Parts with Errors

Postby Sal Hernandez » Mon May 14, 2012 9:30 am

Thanks for reporting the issue. You can just make the mounting holes non-plated or increase the annular ring to clear the drc. I will report the issue.
Regards,

Sal Hernandez
Software Support Engineer I
Sunstone Circuits
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Re:Open Thread for Parts with Errors

Postby Sal Hernandez » Mon May 14, 2012 9:30 am

Thanks for your feedback. Can you provide an example of a part that you used? I will forward the details to our software development team.
Regards,

Sal Hernandez
Software Support Engineer I
Sunstone Circuits
13626 S. Freeman Road
Mulino, OR 97042
Phone: 503-829-9108 x226
Fax: 503-829-5482
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Re:Open Thread for Parts with Errors

Postby Zheng Li » Mon May 14, 2012 9:30 am

I ordered a board with several generic jumper (header) footprints. The through hole sizes were a tad small for the generic jumper parts I had. The problem was that the jumper header pins are square in crosssection, requiring a slightly larger hole, which would have otherwise been ok. Perhaps Sunstone could consider making the hole sizes of the generic jumpers a bit larger.
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Re:Open Thread for Parts with Errors

Postby Sal Hernandez » Mon May 14, 2012 9:30 am

Thank you for reporting the issue. I have updated the libraries that contain the SOT89 footprint and submitted them to our development team for release in a future build.
Regards,

Sal Hernandez
Software Support Engineer I
Sunstone Circuits
13626 S. Freeman Road
Mulino, OR 97042
Phone: 503-829-9108 x226
Fax: 503-829-5482
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Re:Open Thread for Parts with Errors

Postby Bao » Mon May 14, 2012 9:30 am

I suspect that 3 pin components from the NXP library which involve an SOT89 footprint may have a pin mix-up. Example. PBSS5320X. The footprint are labeled 1,2,3 from left to right. Within the NXP documentation, (http://www.nxp.com/documents/data_sheet/PBSS5520X.pdf) the footprint should be labeled 3,2,1 from left to right. Since the component is a surface mount, the incorrect pin labeling make the circuit inoperational. I have verified that flipping the transistor over will fix the circuit. Unfortunately, "flipping" the transistor over is awkward and is a crude workaround at best.
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Re: Open Thread for Parts with Errors

Postby pcypang » Wed Oct 03, 2012 10:19 am

I am using the LTV-817S footprint from the Sunstone website for my PCB but when I run DRC it shows the error: One Components overlap Error. Any inputs for that?
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Re: Open Thread for Parts with Errors

Postby Eric Haugen » Wed Oct 03, 2012 7:18 pm

pcypang wrote:I am using the LTV-817S footprint from the Sunstone website for my PCB but when I run DRC it shows the error: One Components overlap Error. Any inputs for that?



Yes, this is not a problem with the part. You can find more information regarding the error with this thread:

http://forum.sunstone.com/understanding-the-component-overlap-warning-t279.html
Eric Haugen
Sunstone Circuits
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Re: Open Thread for Parts with Errors

Postby pcypang » Tue Oct 23, 2012 1:30 pm

Continuing from my post before, LTV-817S footprint is too small for the part. LM339ADR is also a wrong footprint that the size of the footprint is bigger than the actual component size.

Just a reference for other designers so changes can be made before moving on to PCB manufacture.
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