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'[EE] SMT components in small volume'
2005\04\25@111119 by Russell McMahon

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Let's see if I can post on something less contentious than recently.
(Those who don't get OT don't ask !!!)

I suppose other countries have suppliers of surface mount components
in small volumes at a good price.
An excellent NZ source for such is SMD limited.
Prices are far lower than from eg RS.

       http://www.smd.net.nz

They have an excellent range of parts, will sell in small quantities
(resistors MOQ=10, most other parts MOQ=1), and pricing is excellent
(IMHO).

As an example, prices in $NZ, multiply by 0.7 to get $US

0805 resistors 1% typically price per each /volume

           $0.0375/10, $0.025/11-100, $0.0125/101-500,
$0.0075/501-1000

LM324    16/13/10/8 cents in 1/10/100/500 quantity

Transistor TR2222A 7/6/4/3 cents

ULN2003    50 / 41 / 32 / 23

74HC14    13  11 8 6


Paper catalogue (useful) on request.

How do eg US suppliers compare?


       Russell McMahon



2005\04\25@121140 by Josh Koffman

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I have a local shop that isn't too bad for small quantities, CDN$0.03
per 0805 resistor. Decent selection of 20+ values. The problem is they
don't have much else SMT. Short of Digikey, anyone know of something
similar to Russell's shop for Canada/USA?

Josh
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On 4/25/05, Russell McMahon <spam_OUTapptechTakeThisOuTspamparadise.net.nz> wrote:
{Quote hidden}

2005\04\25@133721 by peiserma

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piclist-bounces@mit.edu wrote:
> I have a local shop that isn't too bad for small quantities, CDN$0.03
> per 0805 resistor. Decent selection of 20+ values. The problem is they
> don't have much else SMT. Short of Digikey, anyone know of something
> similar to Russell's shop for Canada/USA?

not quite for low volume, low cost but:

I use Garrett Electronics http://www.garrettelec.com/ for higher
volume stuff (like reels) and the occasional component that isn't
available through DigiKey or Mouser. They carry mainly passives,
plus some transistors.

example prices: Phycomp 10K 200ppm 5% 0805 resistor:
QTY   USD
25    0.07
100   0.022
5K    0.0041 (reel)

I usually buy 100 anyway, since prices drop significantly.

What I really like is their SMT design kits. comes in notebook binders
so it takes up very little space and is neatly organized to boot. Of
course, you pay for that convenience...

2005\04\25@141346 by Chetan Bhargava

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My local shop had a surplus sale year back. They had unused passive
components in antistatic bags. Each bag of 100+ components was a
dollar. Bags were marked.

They also have a large inventory of reels. So you go in the SMD aisle
and pick the components. I don't know the exact pricing but it is
similar to the one you posted. Caps are twice the price of resistors.
They have 0402, 0603, 0805, 1206 and bigger sizes.


> How do eg US suppliers compare?

--
Chetan Bhargava
Web: http://www.bhargavaz.net
Blog: http://microz.blogspot.com

2005\04\25@185157 by Dwayne Reid

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At 10:11 AM 4/25/2005, Josh Koffman wrote:
>I have a local shop that isn't too bad for small quantities, CDN$0.03
>per 0805 resistor. Decent selection of 20+ values. The problem is they
>don't have much else SMT. Short of Digikey, anyone know of something
>similar to Russell's shop for Canada/USA?

I've been purchasing from a supplier in the US who has put some nice
assortments together.  They sell on eBay as well.

For example, their full 0805 resistor kit contains all 170 5% values (E24
range) from 1R0 through 10M: each is a cut strip of 25 pcs.  Price is US
$23.99 or less than a penny and half each.  Same price for 0603 & 1206 sizes.

0603
kit
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=73151&item=3850353596&rd=1>

0805
kit
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=73151&item=3850353873&rd=1>

1206
kit
<http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=73151&item=3850354204&rd=1>

They also offer several capacitor assortments: one is 44 values (E12 range)
from 0.5pF through to 510pF (all NPO).  Another is 34 values of X7R
capacitors from 560pF through 0.47uF (E12 range).  Both assortments are cut
strips of 10 pcs each and are US $8.99 each.

Check them out at <http://stores.ebay.com/NightFire-Electronic-Kits>  and
<http://search.ebay.com/_W0QQsassZnfceramics> and <http://www.vakits.com/>
.  The eBay auction prices seem somewhat better than the storefront prices.

The usual disclaimer applies: I am not affiliated in any way other than as
a very satisfied customer.

dwayne



--
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Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
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2005\04\25@193742 by phil B

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I buy from Mouser - they have very good prices (100
1206 resistors for $1.50, for example).  Just don't
buy Atmel parts from them...  If you buy a small
amount (< 1 lb), take the first class mailing option -
cheaper and faster than fedex/ups.

--- Josh Koffman <joshybearspamKILLspamgmail.com> wrote:
> I have a local shop that isn't too bad for small
> quantities, CDN$0.03
> per 0805 resistor. Decent selection of 20+ values.
> The problem is they
> don't have much else SMT. Short of Digikey, anyone
> know of something
> similar to Russell's shop for Canada/USA?
>


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2005\04\27@010841 by William Chops Westfield

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On Apr 25, 2005, at 3:51 PM, Dwayne Reid wrote:

> Check them out at <http://stores.ebay.com/NightFire-Electronic-Kits>

I'll second the recommendation for this vendor.  I've bought stuff from
them
with no problems and been pleased with both service and product.  They
do
seem to specialize in "kits", though; I tend to think of them as "buy
some
SMT transistors at a reasonable price, get an assortment of SMT passive
components for free..."

BillW

2005\04\27@131112 by phil B

picon face
I've bought from those guys - used their smt resistor
kit to jump start my smt stocks.  Good, honest
service.

In general though, I find it cheaper to buy the
specific item (typically in 100 units) rather than a
collection/kit.  You wind up with stuff that never
gets used.  I've used maybe 1/3 of the resistor values
from the kit.  I also bought a 50 NPN and 50 PNP
(mmbt390x) kit for like, iirc, $8 plus shipping.  I
haven't used the PNPs at all so the mouser $4/100 deal
was better.  

What would be really good is a "MicroController
Components Kit"  - lots of common values (like 10K
ohm, 1K ohm, several values of LED dropping Rs, 100
nF, crystals, max232, connectors, headers, ...).

Phil

--- William Chops Westfield <.....westfwKILLspamspam.....mac.com> wrote:
> On Apr 25, 2005, at 3:51 PM, Dwayne Reid wrote:
>
> > Check them out at
> <stores.ebay.com/NightFire-Electronic-Kits>
>


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2005\04\28@014024 by William Chops Westfield

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On Apr 27, 2005, at 10:11 AM, phil B wrote:

> What would be really good is a "MicroController
> Components Kit"  - lots of common values (like 10K
> ohm, 1K ohm, several values of LED dropping Rs, 100
> nF, crystals, max232, connectors, headers, ...).
>
That's a good idea; you should suggest it to the nightfire folk.

OTOH, the nice thing about digital is that your values don't have
to be very close.  I bought an assortment of of 1% SMT resistors in
near-full reels on eBay.  Quite cheap.  *I* count them as "approximately
10k", "approximately 100k", and so on, in spite of the actual values
being
more along the lines of 8.72k, 92.3k, etc...  :-)  I've got some .39uF
ceramic chip caps i figure will make good bypass caps, too...  (You can
WATCH less scrupulous parts dealer mark up their .01 and .1uF caps more
than less popular values that probably work just as well.  Depressing.)

On the third hand, I rather get the feeling that nightfire is already
acting as redistributer for assorted odd values they've found, so they
might not be able to put together a kit of "common" values as easily.
It doesn't hurt to ask, though...

BillW

2005\04\28@035941 by Russell McMahon

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> I've got some .39uF ceramic chip caps i figure will make good bypass
> caps, too...

Getting a bit high for noise bypass in higher frequency systems. OK to
add a bit of oomph for slower load variations.


       RM


'[EE] SMT components in small volume'
2005\05\02@111448 by William Chops Westfield
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On Apr 28, 2005, at 12:57 AM, Russell McMahon wrote:

>> I've got some .39uF ceramic chip caps i figure will make good bypass
>> caps, too...
>
> Getting a bit high for noise bypass in higher frequency systems.

Maybe.  Don't forget that you gain back some good HF behavior just by
going leadless and to more modern cap technologies (say, compared to
random
.1uF disk caps.)  I suppose only a scope would show for sure (and it
would
probably take a better scope than mine.)

BillW

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