| General > General Technical Chat |
| Digi-Key has changed and it is not very good |
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| KE5FX:
--- Quote from: rdl on October 14, 2020, 05:09:11 am ---I don't see the problem with that label. 0603LS-821XGLB is the manufacturer's (Coilcraft) part number. Mouser just adds a prefix. --- End quote --- The component value is nowhere in sight! |
| tooki:
--- Quote from: eevcandies on October 14, 2020, 12:30:04 am --- It doesn’t, it’s just not designed the way you want. Perhaps you are not familiar with filters...have been filtering by voltage range, current limit ohms, cut tape, in stock, active, ect for years with no problem. Now it is failing to properly do so. If we want to see other options, like reels, bags, busloads, whatever, then we will select those & expect to see them. If you select to show only 100 ohm and 488 ohm resistors, you should not see 345 ohm resistors appear. --- End quote --- Of course I know how filters work, as I use them on a daily basis. What surprises me is how confidently condescending you are, despite continuing to demonstrate that your understanding is rather weak. You keep insisting it's showing items that do not meet the criteria, but it's not. I'll come back to this later. --- Quote from: eevcandies on October 14, 2020, 12:30:04 am ---You don’t seem to know what a SKU is You don't seem to be investigating ...there are only digkey numbers and manufacturer numbers listed & where does it say they are limiting anything regarding sku's? What limits digi from selling a LM947AA-XP3-2N and also littlebug from selling a LM947AA-XP3-2N (from who knows where) ...nothing that is apparent. --- End quote --- Aaaand you just confirmed that you do NOT know what a SKU is! "LM947AA-XP3-2N" is the model number, aka (manufacturer) part number, NOT the SKU. The SKU (short for "stock keeping unit") is what DK calls the "DK part number". It is common for there to exist multiple SKUs for the same part number, due to packaging options and the like. Let's leave aside electronics components for a quick second and pretend we are talking about pencils. Suppose the pencil's model number is "123HB-Y", for pencil style 123 with HB lead, painted yellow. And the manufacturer sells them in blister packs of 6, boxes of 12, and boxes of 100. The manufacturer assigns each a SKU: "123HB-Y-6B", "123HB-Y-12", and "123HB-Y-100", respectively. A retailer can order them from the manufacturer only in those package sizes, by ordering with the manufacturer's SKU. They can sell them however they want, so suppose the retailer also wants to sell individual pencils, so they create four retailer SKUs. Let's call them "PencilCo 123HB-Y-1", "PencilCo 123HB-Y-6", "PencilCo 123HB-Y-12", and "PencilCo 123HB-Y-100". When you order a "PencilCo 123HB-Y-1" (i.e. qty 1), you don't care whether the retailer obtained it from a manufacturer pack of 6, 12, or 100, because once removed from the packaging, a "123HB-Y" pencil is the same. Make sense so far? Do you see how the model number, the manufacturer SKU, and the retailer SKU are different things? Additionally, we could also say that the 123HB-Y is a "yellow HB pencil", because in many situations, the manufacturer doesn't matter, as long as the pencil is yellow and has HB lead. FWIW, the UPC barcode is the retail industry's attempt at unifying manufacturer SKUs and retailer SKUs. Back to component filtering: In the past, DK always treated each package size as its own SKU. But as the buyer, ultimately what you're after is the model number (i.e. manufacturer part number). In the past, this led to DK results listing many SKUs for the same manufacturer part number unless you went and filtered out the packaging you didn't want. Now, they concatenate it down to the manufacturer part number — it's one line item now, not 3, for the typical SMD part available in whole reel, cut tape, and digireel. They just show you the available packaging within the line item. When you filter for parts (manufacturer part numbers) that are available as cut tape, it will eliminate parts that are not available as cut tape, and shows you only the ones that are, even if they have other available packaging as well. But the list of parts does indeed only contain parts that are available as cut tape. You literally can just ignore the fact that they display the availability of your part in other packaging. (As already said, the part of your criticism that I agree with is that displaying it isn't that useful, and consumes space. But it's NOT showing you parts that do not exist as cut tape, as you keep insisting.) If you have filtered by cut tape, and you choose one of the parts in the list, you WILL be able to order it as cut tape. And that's what it's all about. When it comes to third-party, DK does not appear to allow multiple suppliers for the same DK SKU (DK part number) the way Amazon does. So if DK has LM947AA-XP3-2N sourced from the manufacturer, and so does littlebug sourced from wherever, they may share the same manufacturer part number, but they won't have the same DK SKU, so when you go to order, and you filter to not include marketplace vendors, you cannot get the littlebug stock by mistake. DK doesn't group third-party stock into a manufacturer part number the way they do for packaging alternates. Nor could they, since manufacturer part numbers aren't globally unique. For example, a Keystone Electronics "3534" is a PCB connector, while a Pomona Electronics "3534" is a BNC adapter. So you can't just say "oh, the manufacturer part number is 3534 so they are the same thing". They're unique only within a manufacturer. DK treats a third-party supplier as a different manufacturer, when it comes to grouping. --- Quote from: eevcandies on October 14, 2020, 12:30:04 am ---As another example of the layout mess...where they need to have some width, they don't provide it & force the listing to waste 6 lines. Yet where they don't need the width they give 2x or more than what is needed, just to waste screen space. --- End quote --- You already said this yesterday, and I already responded yesterday: clearly, the column widths are being automatically sized to fit the column name. Clearly NOT set by hand, since the widths are being set to µPx resolution, which no human would do. |
| eevcandies:
But it's NOT showing you parts that do not exist as cut tape, as you keep insisting.) ...you need to look again, as I have never mentioned anything along that line. Here it is, in case it was forgotten: Search for a part where you want to only see cut tape, since that is what you are going to be ordering....instead the results are 3-4 times as long. Why? Because now it ignores the request to show cut tape parts & also shows 3 or 4 other types. So not sure where you came up with that statement. It fails to limit to only the cut tape selections when requested. If you request to see only smd parts & it also shows through hole parts as well, that would be a similar failure. The various filters are there to reduce the size of the generated listing from 10'000 of thousands of parts, to maybe a few hundred or dozens. When one selects to show only cut tape parts, those are the only package style that should be seen. If you select TO-220 transistors, you should not have TO-92 in its column as well. for example you see an lm324 offered the following ways, with 3 different digikey numbers for 3 different packaging options: LM324MX/NOPBTR-ND ....Tape & Reel (TR) LM324MX/NOPBCT-ND ....Cut Tape (CT) LM324MX/NOPBDKR-ND ...Digi-Reel® When cut tape is selected that is the packaging desired, so which of the above make easy sense to include in the generated listing???? This is where it falls apart. LM324MX/NOPBCT-ND ....Cut Tape (CT) should appear in the listing & the others shouldn't, because those are not cut tape. ...however the others are not being filtered out, adding to the clutter & length of the listing, requiring more scrolling. How is it impossible to show only: LM324MX/NOPBCT-ND ....Cut Tape (CT) when the cut tape filter is selected??? It is no more impossible than showing only 100 ohm resistors when that 100 ohm filter is selected !! If you wanted to see cut tape OR tape and reel in the list, then you would simply select both of those options. As far as other suppliers having their own numbers, that may be fine, however most purchasers won't even look at the digikey numbers or other supplier numbers. So they may order a 1N914B with an easy chance for mistakes to happen. |
| SilverSolder:
--- Quote from: KE5FX on October 14, 2020, 05:23:28 am --- --- Quote from: rdl on October 14, 2020, 05:09:11 am ---I don't see the problem with that label. 0603LS-821XGLB is the manufacturer's (Coilcraft) part number. Mouser just adds a prefix. --- End quote --- The component value is nowhere in sight! --- End quote --- That would be too simple, and against all modern design principles!!! :D |
| Marco:
--- Quote from: rsjsouza on October 12, 2020, 12:13:38 pm ---That, tied to some browser changes in the action of the backspace key (which acts as a "Back" shortcut) is infuriating when typing on forms in certain pages. --- End quote --- Created for compatibility with internet explorer, the amount of people in the history of the internet who find this an useful shortcut can be counted in the single digits ... still the default. You can change it though for Firefox. |
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