Whenever possible, I buy all my passives from Garrett Electronics:
http://www.garrettelec.com/
because:

1. They are very accommodating regarding small orders.  They'll put 
anything possible on tape/reel for a small price and they'll do that for 
free for any line item of 500 or more as opposed to Digikey who won't do 
it for some items and want $7 when they will do it.

2. Their online stock system is as good as Digikey.

3. Their online ordering system is probably as good as Digikey but I 
don't use it.  Instead, I email a spreadsheet to an inside sales person. 
  She goes over it and calls if there are any questions, subs, or if 
they see that I can change the quantity of some part and get more for less.

Downside:
They don't always have all the parts I need. But I have yet to get a 
wrong order from them.

David Challis wrote:
> The mis-marked parts problem happened to us again this weekend!  We received
> some sot23-6 parts that were for HDMI esd, rather than the USB esd as marked
> on the bag, and we had a run of cameras built with some 1000pf caps rather
> than 10,000pf caps, again from a mismarked lot. That one was very expensive
> for us to fix.  We are now seriously considering only buying full reels
> and/or buying from other distributors.
> 
> I really hope our friends at Digikey get this under control.
> 
> Does anyone have medium volume (100 to 5000 per line item) experience with
> Mouser, Newark, Avnet, or Arrow that they can report on?
> 
> Thanks,
> 
> Dave

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