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mkr5000
Guest

Tue Jan 01, 2019 7:45 pm   



Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Is it just me or were internet searches much easier 20 *^$&ing years ago? Smile

Winfield Hill
Guest

Tue Jan 01, 2019 8:45 pm   



mkr5000 wrote...
Quote:

I have an SMD LED (APA102) and going nuts finding the art for the PCB.


That kind of info needs to come from the datasheet. The
manufacturer, Shenzhen Shiji Lighting Co.,Ltd, may have
the dimensions. One of the datasheets on the Adafruit
website shows pin dimensions, but the scan is unreadable.
Perhaps a 5x5mm package, 1mm pin width and 0.5mm spacing.
Maybe you can guess, or maybe you can call someone there.


--
Thanks,
- Win

Nomen Nescio
Guest

Wed Jan 02, 2019 12:45 am   



mkr5000 <mikerbgr_at_gmail.com> wrote:
Quote:
Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Is it just me or were internet searches much easier 20 *^$&ing years ago? Smile


twenty years ago searches delivered answers. now all they do is deliver click bait because clicks pay.

mpm
Guest

Wed Jan 02, 2019 1:45 am   



On Tuesday, January 1, 2019 at 1:16:11 PM UTC-5, mkr5000 wrote:
Quote:
Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Is it just me or were internet searches much easier 20 *^$&ing years ago? Smile


You can probably scale it yourself from the bottom of page-1 of the datasheet. (?)
https://cdn-shop.adafruit.com/product-files/2343/APA102C.pdf

It would have been easier if they just provided it.

DLUNO
Guest

Wed Jan 02, 2019 2:45 am   



On Tue, 01 Jan 2019 23:20:40 +0000, Nomen Nescio wrote:

Quote:
mkr5000 <mikerbgr_at_gmail.com> wrote:
Is there a site somewhere with comprehensive drawings of everything in
SMD packages? I have an SMD LED (APA102) and going nuts finding the art
for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not
familiar).

Is it just me or were internet searches much easier 20 *^$&ing years
ago? :)

twenty years ago searches delivered answers. now all they do is deliver
click bait because clicks pay.


That depends on how one searches.

For this search, I would use google images. Then pad layout images
show up, and when one clicks those, one sees the image, and the link that
sourced it. Upon examining that link, one can decide whether to visit
the site the link refers to.

I searched this under google images and I think I saw your desired
layout as the second image listed...

apa102 led pad layout

DLUNO
Guest

Wed Jan 02, 2019 2:45 am   



On Tue, 01 Jan 2019 16:02:19 -0800, mpm wrote:

Quote:
On Tuesday, January 1, 2019 at 1:16:11 PM UTC-5, mkr5000 wrote:
Is there a site somewhere with comprehensive drawings of everything in
SMD packages? I have an SMD LED (APA102) and going nuts finding the art
for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not
familiar).

Is it just me or were internet searches much easier 20 *^$&ing years
ago? :)

You can probably scale it yourself from the bottom of page-1 of the
datasheet. (?)
https://cdn-shop.adafruit.com/product-files/2343/APA102C.pdf

It would have been easier if they just provided it.


Autodesk, inc. :

https://www.instructables.com/id/PIXO-Pixel-IoT-16x16-LED-Display/

DLUNO
Guest

Wed Jan 02, 2019 2:45 am   



On Tue, 01 Jan 2019 23:20:40 +0000, Nomen Nescio wrote:

Quote:
mkr5000 <mikerbgr_at_gmail.com> wrote:
Is there a site somewhere with comprehensive drawings of everything in
SMD packages? I have an SMD LED (APA102) and going nuts finding the art
for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not
familiar).

Is it just me or were internet searches much easier 20 *^$&ing years
ago? :)

twenty years ago searches delivered answers. now all they do is deliver
click bait because clicks pay.


https://www.instructables.com/id/4x4x4-DotStar-LED-Cube-on-Glass-PCBs/

There is a layout with dimensions there.

DLUNO
Guest

Wed Jan 02, 2019 2:45 am   



On Tue, 01 Jan 2019 23:20:40 +0000, Nomen Nescio wrote:

Quote:
mkr5000 <mikerbgr_at_gmail.com> wrote:
Is there a site somewhere with comprehensive drawings of everything in
SMD packages? I have an SMD LED (APA102) and going nuts finding the art
for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not
familiar).

Is it just me or were internet searches much easier 20 *^$&ing years
ago? :)

twenty years ago searches delivered answers. now all they do is deliver
click bait because clicks pay.


https://www.witop-tech.com/product-item/__trashed-3/#tab-id-2

Martin Riddle
Guest

Wed Jan 02, 2019 3:45 am   



On Tue, 1 Jan 2019 10:16:08 -0800 (PST), mkr5000 <mikerbgr_at_gmail.com>
wrote:

Quote:
Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Is it just me or were internet searches much easier 20 *^$&ing years ago? Smile


For parts without footprints, I referance
http://www.pcblibraries.com/Products/Compare/

The Free Viewer can get you in the ballpark for dimensions of the
pads. then at least it will be IPC compliant.

Cheers

Boris Mohar
Guest

Wed Jan 02, 2019 11:45 am   



On Tue, 1 Jan 2019 10:16:08 -0800 (PST), mkr5000 <mikerbgr_at_gmail.com> wrote:

Quote:
Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Is it just me or were internet searches much easier 20 *^$&ing years ago? Smile


There was less stuff years ago.


Regards,

Boris Mohar

Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca

void _-void-_ in the obvious place



---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

Gunther Mannigel
Guest

Wed Jan 02, 2019 8:45 pm   



Am 01.01.2019 um 19:16 schrieb mkr5000:
> Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Maybe it's in IPC7351?

cheers
Gunther


Guest

Thu Jan 03, 2019 4:45 pm   



On Wednesday, January 2, 2019 at 1:50:44 PM UTC-5, Gunther Mannigel wrote:
Quote:
Am 01.01.2019 um 19:16 schrieb mkr5000:
Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Maybe it's in IPC7351?


I recall some years ago there was a program you could download that would produce the specs for all the standard foot prints. You could pull up any given footprint and tweak the details and produce modified versions as well. I don't recall who produced it and my bookmarks from that time seem to be lost.

I do recall this program was used to produce footprint libraries for FreePCB. I expect someone in that group will remember the name of the program and likely the company that provided it. I'll ask.

Rick C.

- Get 6 months of free supercharging
- Tesla referral code - https://ts.la/richard11209


Guest

Thu Jan 03, 2019 5:45 pm   



On Thursday, January 3, 2019 at 10:28:32 AM UTC-5, gnuarm.del...@gmail.com wrote:
Quote:
On Wednesday, January 2, 2019 at 1:50:44 PM UTC-5, Gunther Mannigel wrote:
Am 01.01.2019 um 19:16 schrieb mkr5000:
Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Maybe it's in IPC7351?

I recall some years ago there was a program you could download that would produce the specs for all the standard foot prints. You could pull up any given footprint and tweak the details and produce modified versions as well. I don't recall who produced it and my bookmarks from that time seem to be lost.

I do recall this program was used to produce footprint libraries for FreePCB. I expect someone in that group will remember the name of the program and likely the company that provided it. I'll ask.


I think I found a link and the company no longer seems to provide a free to use copy of their software. It was

http://www.pcblibraries.com


Rick C.

+ Get 6 months of free supercharging
+ Tesla referral code - https://ts.la/richard11209

John Miles, KE5FX
Guest

Fri Jan 04, 2019 4:45 am   



On Tuesday, January 1, 2019 at 10:16:11 AM UTC-8, mkr5000 wrote:
Quote:
Is there a site somewhere with comprehensive drawings of everything in SMD packages? I have an SMD LED (APA102) and going nuts finding the art for the PCB. Wasn't shown on the datasheet. I think it's a 5050? (Not familiar).

Is it just me or were internet searches much easier 20 *^$&ing years ago? Smile


www.snapeda.com is pretty handy when you don't have time/motivation to deal
with weird footprints.

-- john

Piotr Wyderski
Guest

Mon Jan 07, 2019 10:45 pm   



mkr5000 wrote:

> Is there a site somewhere with comprehensive drawings of everything in SMD packages?

Beware, for one instance there are two completely different packages
referred to as TSSOP8. I have learnt it the hard way, had to re-spin
the PCB. Never trust the packaging specs and check the footprint yourself.

Best regards, Piotr

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