Tom Lafleur
2015-06-28 13:20:11 UTC
example:
C1206C104K3RACTU
<http://www.mouser.com/ProductDetail/Kemet/C1206C104K3RACTU/?qs=sGAEpiMZZMsh%252b1woXyUXj0S0dkQU4uBJu638CmZJzYM%3d>
Kemet $0.017 at 1000 parts ($17.00) , last time I got 1000 parts for $0.009
These are 1206 parts X7R .1uf 50v 10%, they do fit over the pads common on
our boards.. Not perfect, but good enough! Maybe we should modified the
pads to make it fit both parts on future boards?
0805 and smaller parts are a bit cheaper, larger that 1206 cost a bit more
as the industry has move away from these larger parts.
common in cell phone today is 0201 to 01005 parts!!!
~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~
Tom Lafleur
C1206C104K3RACTU
<http://www.mouser.com/ProductDetail/Kemet/C1206C104K3RACTU/?qs=sGAEpiMZZMsh%252b1woXyUXj0S0dkQU4uBJu638CmZJzYM%3d>
Kemet $0.017 at 1000 parts ($17.00) , last time I got 1000 parts for $0.009
These are 1206 parts X7R .1uf 50v 10%, they do fit over the pads common on
our boards.. Not perfect, but good enough! Maybe we should modified the
pads to make it fit both parts on future boards?
0805 and smaller parts are a bit cheaper, larger that 1206 cost a bit more
as the industry has move away from these larger parts.
common in cell phone today is 0201 to 01005 parts!!!
I use1206 parts, they fit fine over the .2in spacing used on our boards
~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~
Interesting idea. I wonder (out loud) if changing all bypass caps to
something like 2012 or larger and mounting them on the back would free up
additional top-side space in the denser boards?
I remember long ago that some people used IC sockets with a bypass cap
mounted in the center of the socket. I think they still make them, but they
probably cost more than the sum of a regular socket and cap.
For parts ordering, I usually use Digi-Key or Jameco; sometimes Mouser but
only if the others donât have it. I also buy odder parts from âacpsurplusâ
or âhuskerfan40214â on eBay. I usually buy ahead and in bulk for projects
to I try to take advantage of volume discounts. The downside is that I have
a large box of tubes of chips. When a new project comes up, I âgo to the
parts cageâ and pull parts, then do a fill-in order if needed. If Iâm
running low, Iâll order in quantity and stock it. For the most part, Iâm
only doing refill orders at this point â itâs rare that I donât have a part
in-stock. I keep an Excel spreadsheet of my inventory so I know where I am
with stuff.
Rich
--
Rich Cini
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator
http://www.classiccmp.org/cini
http://www.classiccmp.org/altair32
Date: Sunday, June 28, 2015 at 8:10 AM
Subject: Re: [N8VEM-S100:7326] Re: [N8VEM: 19750] Re: Possible updates to
the N8VEM SBC V2 BOM
SMT bypass caps -- a very novel idea ... at least for me. Need to try
it! What (physical) size?
"N8VEM-S100" group.
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Interesting idea. I wonder (out loud) if changing all bypass caps to
something like 2012 or larger and mounting them on the back would free up
additional top-side space in the denser boards?
I remember long ago that some people used IC sockets with a bypass cap
mounted in the center of the socket. I think they still make them, but they
probably cost more than the sum of a regular socket and cap.
For parts ordering, I usually use Digi-Key or Jameco; sometimes Mouser but
only if the others donât have it. I also buy odder parts from âacpsurplusâ
or âhuskerfan40214â on eBay. I usually buy ahead and in bulk for projects
to I try to take advantage of volume discounts. The downside is that I have
a large box of tubes of chips. When a new project comes up, I âgo to the
parts cageâ and pull parts, then do a fill-in order if needed. If Iâm
running low, Iâll order in quantity and stock it. For the most part, Iâm
only doing refill orders at this point â itâs rare that I donât have a part
in-stock. I keep an Excel spreadsheet of my inventory so I know where I am
with stuff.
Rich
--
Rich Cini
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator
http://www.classiccmp.org/cini
http://www.classiccmp.org/altair32
Date: Sunday, June 28, 2015 at 8:10 AM
Subject: Re: [N8VEM-S100:7326] Re: [N8VEM: 19750] Re: Possible updates to
the N8VEM SBC V2 BOM
SMT bypass caps -- a very novel idea ... at least for me. Need to try
it! What (physical) size?
...
I often use surface mounted .1uf/50v capacitor to replace the axial wire
lead capacitors used on most of our projects. I mount them on the back of
the boards. Their cheaper and easy to find, and for me they take less time
to install.
Getting use to substitution of parts is just part of the hobby!
Tom Lafleur
~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~
I have nevvvver had a problem with Mouser. Their web site clearly shows
their inventory. If you order something that is not in stock it shows as
backordered before you complete the order.
As far as delivery speed, that depends on how far you live from the
Dallas area. I have placed orders at 7 PM and get them the next day. That
is 95 percent of the time. I am a 5 hour ride up I-30. For me Digikey
takes 5 days.
Aug in Arkansas
--
You received this message because you are subscribed to the Google GroupsI often use surface mounted .1uf/50v capacitor to replace the axial wire
lead capacitors used on most of our projects. I mount them on the back of
the boards. Their cheaper and easy to find, and for me they take less time
to install.
Getting use to substitution of parts is just part of the hobby!
Tom Lafleur
~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~
I have nevvvver had a problem with Mouser. Their web site clearly shows
their inventory. If you order something that is not in stock it shows as
backordered before you complete the order.
As far as delivery speed, that depends on how far you live from the
Dallas area. I have placed orders at 7 PM and get them the next day. That
is 95 percent of the time. I am a 5 hour ride up I-30. For me Digikey
takes 5 days.
Aug in Arkansas
--
"N8VEM-S100" group.
To unsubscribe from this group and stop receiving emails from it, send an
For more options, visit https://groups.google.com/d/optout.
~~ _/) ~~~~ _/) ~~~~ _/) ~~~~ _/) ~~
Tom Lafleur
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