[minima] Re: Minima PCB (eagle cad's)
- From: "Mac A. Cody" <maccody@xxxxxxx>
- To: minima@xxxxxxxxxxxxx
- Date: Sun, 02 Feb 2014 21:32:58 -0600
Jerry,
Thanks for the image. I found a surface mount part that
I 'thought' was a TO-252. I just discovered it was, in
fact, a TO-263. It is looks very similar, but larger in
scale by about 50%. Comparing that part to the PCB
lands on the Arduino controller board obviously showed a
mismatch. At the same time, I found an LM1117 in an
SOT-223 package. This matched the lands much better, so
I made an incorrectassumption. For this I apologize.
Insomuch as the general SMD issue, I thought that I
explained my reasoning already. But, yes I could drill
seven holes, if necessary.
What initiatedmy questions was Sandeep Lohia's post:
> Today & tomorrow being holiday & vendor closed,
> will finally visit factory on Monday 1st half (03-02-2014)
> & I think we need not any further approval or changes. Right?
> Friend Adrian, here each one of us have got unique taste depending
> upon the availability of components locally, & we cannot satisfy all.
> However we have gone with what majority of us suggested.
Having just discovered the Minima FreeList only a few days
earlier, I felt it was my only opportunity to ask, what I
thought, were reasonable questions before the design was
"cast in stone". I feel like I have only succeeded in
stirring up a bit of a hornets nest. I'm truly sorry to
have done so. I was only trying to help.
73,
Mac AE5PH
Thanks for the picture. I had found a
On 02/02/2014 01:25 AM, jerry@xxxxxxxxxxxxxxxx wrote:
Mac, I've attached a picture of the TO-252 for you. If you don't like
using that package, the LM1117 also comes in the TO-220 package, for
which you would have to drill three holes. The whole digital board can
be built using through hole parts just by drilling 7 extra holes. Why
would you ask someone to redesign a board when all you have to do is
drill 7 more holes. The si570 is what it is and in the only package
available. Jerry K5LRU
-------- Original Message --------
Subject: [minima] Re: Minima PCB (eagle cad's)
From: "Mac A. Cody" <maccody@xxxxxxx>
Date: Sun, February 02, 2014 12:28 am
To: minima@xxxxxxxxxxxxx
Correction - The package the LM1117 needs to be in an SOT-223 package.
Mac AE5PH
On 02/01/2014 10:30 PM, Mac A. Cody wrote:
On Sat, 01 Feb 2014 18:31:23 -0700, Jerry K5LRU wrote:
If you want to use through hole parts, just drill a hole through the
pads. The LM1117 is a TO-252 package, east to get and easy to solder in
place, easier than the si570. Jerry K5LRU
Ahh! TO-252 package. Just like on every motherboard I've seen
for years now. Thanks for the info. I guess the pins are being
bent and inserted into the holes in this application.
Mac AE5PH
Other related posts:
