Parts ordering process.

Does there exist any distributor/manufactor "interface" such that one can supply generic specifications on components like "R=27.4k Tolerance=1% P=0.25W RoHS" and get stock/leadtime + priceing info returned ..? Web interfaces can be screenscraped, but it's not optimal. Parametric search via web is good step. But it's not there.

All this without haveing to look manually. Which is not fun for any list with

50+ components.

The process could be something like: Make schematic with electrical specifications, no footprint values. Send request to distributor for the generic component specification. Use returned: footprint as parameter to pcb layout. priceing info for budget estimations. stock/leadtime for showstopper alerts. Let pcb layout program do make a layout with the retrieved footprints/pinout. Send to fabrication etc..

Reply to
pbdelete
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snipped-for-privacy@spamnuke.ludd.luthdelete.se.invalid wrote: : Does there exist any distributor/manufactor "interface" such that one can : supply generic specifications on components like : "R=27.4k Tolerance=1% P=0.25W RoHS" and get stock/leadtime + priceing info : returned ..?

DigiKey provides the best web search interface, allowing you to input your desired component specs, and returning price, stock, etc.

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is a trailing second best, if you can figure out how to get to their parametric search page. Mouser, a distributor who I used to like, is terrible since they have no parametric search ability.

: Web interfaces can be screenscraped, but it's not optimal. : Parametric search via web is good step. But it's not there.

: All this without haveing to look manually. Which is not fun for any list with : 50+ components.

That's why real companies have procurement departments, with electronics buyers -- specialists who buy parts off BOMs all day long. It's not easy. And wait until you need to start managing procurement lead times to schedule a build ....

Stuart

Reply to
Stuart Brorson

On the other hand, Mouser always returns a price that is 5 to 15% lower than Newark, and 2-5% lower than DigiKey. Plus they charge no handling fees on UPS and FedEX shipping, and no shipping charges on backorders, and have no minimum order.

Reply to
Chuck Harris

Only need to make a bot that can find components at digikey to get all the advantages then .. :)

Oh btw.. makes me curious why digikey don't have min qty/price sorting as choices in their parametric search..

Reply to
pbdelete

:> DigiKey provides the best web search interface, allowing you to input :> your desired component specs, and returning price, stock, etc. :>

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is a trailing second best, if you can figure out :> how to get to their parametric search page. Mouser, a distributor who :> I used to like, is terrible since they have no parametric search :> ability.

: On the other hand, Mouser always returns a price that is 5 to 15% lower : than Newark, and 2-5% lower than DigiKey. Plus they charge no handling : fees on UPS and FedEX shipping, and no shipping charges on backorders, and : have no minimum order.

True enough. But OP asked about web search ability, not price.

Anway, if you are into lower prices, the big distributors like Arrow & Avnet are the way to go, particularly if you are buying parts on a commerical basis.

Stuart

Reply to
Stuart Brorson

Arrow generally is only better in price if you get into larger quantities. When you need quantities, and Mouser is too high, go to their parent company TTI.

I am not sure what is bothering you about Mouser's search engine. If I want a

1K resistor, I can search on 1K resistor, and I get a whole slew of parts. Has Digi-Key done something special lately?

-Chuck

Reply to
Chuck Harris

Most non digikey/mouser/rs-components/farnell etc.. are very cumbersome to deal with unless your doing 1k+ orders.

(Guess that's one of the reasons sw side tend be more "alive" than hw. Due that barrier of entry is lower. This might affect future recruitment.)

When I search digikey, I get a paramtric search so I can _quickly_ optimize the component values I need vs what's available. When I do the same at mouser. There's no sorting but you rather get a complex list of what's available. Unlike digikeys straightforward table with what's available. Farnell have a similar scheme.

I like being able to specify "cap cer .47uF InStock RoHS Lead" get a listing with parameters. Where I select the most important first and narrows the list of components down to the one that fits specification/cost best.

Products that seems hard to find is low-profile gigabit transformers, smps transformers, smd connectors, partly gigabit phy etc.. Then you have to somehow interact with these 1k+ shops. Which means you get

4 samples or have to buy 1k+ chips..

Google have already been clued on this with their google-api. I find it stoneagestyle that people have to spend time to match their bom list by hand to distributors. It should be an automatic, or at least semiautomatic process.

Reply to
pbdelete

TTI.

How do you search on P-channel MOSFETs in TO-252 good for between 50V and 100V?

Best regards, Spehro Pefhany

--
"it\'s the network..."                          "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
Reply to
Spehro Pefhany

I bet you would be amazed just how many companies there are out there where, to purchase prototype parts, the engineer sits around, creating a parts list at, e.g., DigiKey or Mouser to insure that stock is available and find alternative parts if need be... and then prints this out to give to a purchasing department that keys it again a second time!

Reply to
Joel Kolstad

It should be possible to solve. And until distributors get clued. One should be able to construct bots/screenscrapers to accomplish automatic bom keying.

Reply to
pbdelete

:>I bet you would be amazed just how many companies there are out there where, :>to purchase prototype parts, the engineer sits around, creating a parts list :>at, e.g., DigiKey or Mouser to insure that stock is available and find :>alternative parts if need be... and then prints this out to give to a :>purchasing department that keys it again a second time!

I'm not amazed at all. It sounds like my life, except that I do this for *two* procurement departments. First, I do it for the group responsible for prototype procurement. Then I do it again for the group responsible for production procurement.

: It should be possible to solve. And until distributors get clued. One should : be able to construct bots/screenscrapers to accomplish automatic bom keying.

Actually, this isn't nearly enough. For one thing, only a small handful of vendors report availability on their public websites. And the reported quantities aren't necessarily accurate.

More vendors appear on special databases which you can access (over the net) if you are a large commerical entity who buys lots of parts. I believe these databases are more accurate and complete, but that's the business of our procurement departments, not mine. I don't know what policies govern the use of these special databases.

My impression of the electronics procurement/logistics business is that it is indeed ripe for some kind of reporting standard and a SOAP or XML based set of tools which can be used to access and search the vendor databases. However, it's unlikely the big distributors would like that, since obscurantism allows them to maintain control over your purchases through them. That is, if I can clearly see that Vendor A has 1000 parts at one price, Vendor B has 10,000 of the same part at a different price, and vendor C has 1,000,000 of the part at a third price, then they have nothing to compete on other than price, and no vendor wants that.

Stuart

Reply to
Stuart Brorson

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