On Sun, Jan 31, 2016, at 06:18 PM, Gene Heskett wrote: > On Sunday 31 January 2016 13:43:50 Jon Elson wrote: > > > I can't imagine why you'd buy commodity semis from a Chinese > > source when there are great distributors like Digi-Key and > > Mouser, that are quite happy to serve small orders. > > > Both of the above have minimum orders for me that are quite costly for a > 10 pak of anything in the transistor 10 cent to 5 dollar price range. > That and their sites search engines return what looks to me to be random > from dice throws results. If I go searching for small hexfets I get > 20,000 hits, none of which give me the data to make a choice > semi-intelligently. Digikey is slightly better, but not enough to spend > hours wading thru the selections while still hiding the important data. > More often than not, clicking on a fine tune option, such as any case > smaller than a to-220 returns zero results and I know that there are > smaller versions such as could drive an ice cube relay at 12 or 24 > volts. That can be easily put in a to-92, or even in a SMD package, so > why can't it be found?
I find this rather confusing. Mouser is meh, but IMHO Digikey's search engine is simply outstanding. For example: I type MOSFET into the search box. It returns a list of categories. I pick "FETS - Single". It returns a list of 39000+ parts. I click the "In stock" box and "apply filters". List is now 17,999 parts. Scroll over to "Mounting Type", select "Thru hole" and apply filters. 3293 parts. Scroll over to "Supplier Device Package" and select the four TO-92 variants (ctrl-click for multiple selections). Apply filters, 123 parts. Under packaging, select "Bulk" and "Cut tape", (the other variants are for large quantities). Apply filters, down to 106. Select 40 to 100V in the drain-to-source voltage box, down to 59. Select all the sub-1-ohm ones in the Rds-on box, down to 7. Put "1" in the desired quantity box. Hit the up arrow in the price column to sort cheapest first (giving a quantity moves anything with a minimum order larger than that quantity items to the bottom of the list). Cheapest part is at the top of the list, MicroChip TN0604N3-G. Click on the PDF icon in the 2nd column and I'm looking at a data sheet. Click on the links in the 4th or 5th column and I'm looking at the details page for that part. Add 1 to cart. Place order. There is no minimum total order (although it sucks to spend $6 on shipping when you are ordering a $1 part). It took me less time to find that part than it took to type out what I did. Digikey is absolutely my first stop for just about any part, both for hobby stuff and for my day job. Like McMaster, their prices may be a bit higher than some other sources, but usually not enough to matter, and the search engine more than makes up for it. John Kasunich John Kasunich jmkasun...@fastmail.fm ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
