EEVblog Electronics Community Forum
Electronics => Beginners => Topic started by: webkraller on October 15, 2009, 05:07:17 pm
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This site has a great concept - easily searchable datasheets.
I just thought I'd pass on the resource, and hopefully some of you will be able to contribute to help it grow!
http://www.msarnoff.org/chipdb/ (http://www.msarnoff.org/chipdb/)
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There are also other interesting databases:
www.alldatasheet.com (http://www.alldatasheet.com),
www.datasheetpro.com (http://www.datasheetpro.com),
www.digchip.com (http://www.digchip.com/datasheets/search.php),
www.datasheetcatalog.net (http://www.datasheetcatalog.net)
Service Manuals:
www.eserviceinfo.com (http://www.eserviceinfo.com),
safemanuals.com (http://safemanuals.com)
If you know more useful sites please post it.
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One more to add:
http://www.datasheetarchive.com/ (http://www.datasheetarchive.com/)
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just google the part and within the first page there will be at least two results from datasheet archive sites
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just google the part and within the first page there will be at least two results from datasheet archive sites
I usually google the part number and add "pdf", works everytime :)
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This isn't cheap for a hobbiest, but it's really useful
Ultra Librarian
http://www.accelerated-designs.com/(S(msz2wx55m1tmdb45pm5qyu55))/home.aspx
It has a bunch of parts + foortprints via an online database that then can export to a bunch of different EDA software, you can knock out a new part in minutes.
doesn't contain the whole datasheet, but still very worthfile.
adding filetype:pdf is a good googlism i usually add a -inventory as well to get rid of the part miners.
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Here's another...
http://www.datasheet.org.uk
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Unfortunately I have a tedious section in one of my textbooks full of chip data. It's useful but painful to look through.
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http://www.datasheetcatalog.com/
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First place I try for datasheets is Farnell website (au.farnell.com for Australia, etc) - they're usually pretty good for current things.
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just google the part and within the first page there will be at least two results from datasheet archive sites
I usually google the part number and add "pdf", works everytime :)
Google filetype:pdf is the proper way to do it. I also works for any file type.
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My first port of call is usually Alldatasheet, but having the options is good! I'll flick them all on to my colleagues- It's good to have a listing of this, it might be an idea to sticky it somewhere prominent.
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And another...
http://www.datasheetdir.com/
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This site has a great concept - easily searchable datasheets.
I just thought I'd pass on the resource, and hopefully some of you will be able to contribute to help it grow!
http://www.msarnoff.org/chipdb/ (http://www.msarnoff.org/chipdb/)
I'm a Beginner with a capital "B". So I'll certainly give it a try. I've been looking for something better. My biggest issue is in finding an understandable cross-reference. My Mickey Mouse Radio Shack Learning Lab came with transistors simply marked C9014. I can find data sheets easy enough but when I try to find a place to order them they offer NPNs with numbers other than that (but not the 9014). So I need some way of knowing what will interchange. Thanks
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I'm a Beginner with a capital "B". So I'll certainly give it a try. I've been looking for something better. My biggest issue is in finding an understandable cross-reference. My Mickey Mouse Radio Shack Learning Lab came with transistors simply marked C9014. I can find data sheets easy enough but when I try to find a place to order them they offer NPNs with numbers other than that (but not the 9014). So I need some way of knowing what will interchange. Thanks
There are so many transistors out there it's nearly impossible to cross reference them. You sort of just have to dive into the datasheets and get close, looking for the special bits that are unusual. If you're not doing anything particularly special then almost anything that's the same polarity (PNP vs. NPN) and size (TO92 in this case) should work ok.
Here's a good writeup on selecting a replacement transistor. (http://www1.jaycar.com.au/images_uploaded/transubs.pdf)
Hope that helps some. :)
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Just as valuable as finding a data-sheet is finding out if a given part is actually available.
I find this website invaluable...
http://www.findchips.com/ (http://www.findchips.com/)
John
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Hi,
I find this site great for finding datasheets:
http://doc.chipfind.ru/ (http://doc.chipfind.ru/)
Can't remember how I found it but it'll search partial part numbers better than Google if you're trying to identify a part.
Richard.
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i use digchip for most of my sheets usually from boards i salvage. i have a whole folder full of the PDFs from there
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You can use 2N3904 or BC547 for the NPN and 2N3906 or BC557 for their PNP complements.
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I like to use the sites where i buy them from Digikey or Jameco usually, some times Jameco cuts out some information, but usualy the important stuff is there, that or i go to the manufacture.
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Hi everyone, I'm new in the forum, North Texas USA, here in my town is Texas Intruments ;D
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For me the best place to look for datasheets for jelly-bean components - is http://www.datasheetcatalog.com/ (http://www.datasheetcatalog.com/)
Not google, because in datasheetcatalog you can select datasheets from different manufacturers for a given component.
Usually when searching for components I use two websites: http://DigiKey.com/ (http://DigiKey.com/) and http://www.datasheetcatalog.com/ (http://www.datasheetcatalog.com/) (o, well, and google of course)
But I wanted to tell you about one thing that _really_ speeds up searching for datasheets.
It's a small browser tweak I use - search engines keywords.
For example: If I want to look for BC817 datasheet, I just type "d BC817" (without "", of course) in my browser address bar. And momentarily I'm getting list of datasheets from different manufacturers for BC817 from datasheetcatalog.
The same way I can search for videos on youtube typing: "y SomeVideoNameToLookFor" or on wikipedia "w nuclear reaction", etc.
To add DatasheetCatalog to the list of search engines I've used "Add To Search Bar 2.0" firefox addon (which you can find in list of official addons).
I've included some screenshots - they're pretty much self-explaining.
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What's wrong simply grabbing them from the manufacturers website ? All those cyber-squatter sites like all-datasheet and others do nothing else but make you jump through hoops to get a pdf file. And very frequently they present you the wrong one. I have a lot of instances where you land on these sites and the datasheet isn't even there.
Another problem is that they often have old versions of the datasheet with outdate information or mistakes.
my advice : ALWAYS go to the manufacturers site FIRST. if you don't know the manufacturer : go to Digikey or Mouser websites and type in the partnumber. you will get a list of parts: 99.9 % of the parts these guys sell has the link to the REAL datasheet from the manufacturer. Simply click on the icon there and you will have the latest version.
If it's an obsolete part THEN, and only THEN can you use those garbage collectors, and spewers, like alldatasheet, chipfind. There's even an outfit that sells you a subscription to their datasheet collection. These guess essentially sell you PDF files that they do not own , or are licenced to sell. ( yes the datasheets do carry a copyright by their writers and companies that own them)
Google relly needs to make work of eliminating all those datasheet squatter sites.
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here is a transistor database, it also other than the search function lists near drop in replacements for even some of the more obscure stuff, it also for 90% of the stuff lists relevant datasheets for them,
edit: forgot the link http://alltransistors.com/ (http://alltransistors.com/)
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Guess I'll add this handy on-line vacuum tube database for all those tube nuts out there:
http://www.nj7p.org/Common/Tube/SQL/Tube.php (http://www.nj7p.org/Common/Tube/SQL/Tube.php)
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Not so much a datasheet website, but this site has got lots of schematics and service manuals for loads of stuff:
www.schematicsunlimited.com (http://www.schematicsunlimited.com)
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They corrupt the datasheets, inserting their ads and trashing metadata (set document title to their website name, insert pages and watermarks...). They also pollute the search results with their entries, shifting legitimate manufacturers sites down into oblivion.
I block most of the datasheet sites in my google search for that reason.
I'll take the datasheet from manufacturers site, thank you.
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I usually just google it like
filetype:pdf datasheet PART
exemple: https://www.google.com/search?q=filetype:pdf+datasheet+ne555 (https://www.google.com/search?q=filetype:pdf+datasheet+ne555)
To make life easier i've made a bookmarklet, to find datasheets, this is the code:
javascript:
(function(){if(part=prompt('Search Datasheet','NE555')){
url="http://www.google.com/search?hl=en&&btnI=I%27m+Feeling+Lucky&aq=f&q=filetype:pdf+datasheet+"+part;
if(!window.open(url))
location.href=url;
}})();
Or simply go here
Datasheet Finder Bookmarklet (http://fiddle.jshell.net/Victornpb/PxxSg/show/)
I hope this was useful
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To make life easier i've made a bookmarklet, to find datasheets, this is the code:
Very nice!
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Another one worth keeping around:
http://www.electronicsandbooks.com/eab1/manual/index.php?dir=Electronic+Component+Databook+Datasheet%2F (http://www.electronicsandbooks.com/eab1/manual/index.php?dir=Electronic+Component+Databook+Datasheet%2F)
Lots of old databooks here. Unfortunately the site is insanely slow. Like... 56k modem speeds. Not good when the PDFs are 20+MB.
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.... with transistors simply marked C9014. I can find data sheets easy enough but when I try to find a place to order them they offer NPNs with numbers other than that (but not the 9014). So I need some way of knowing what will interchange.
Back in the day, I used to rely heavily on ECG Master Replacement Guide for transistor cross references and specs.
I actually pulled 1996 copy off the book shelf, looked up C9014, and found it. (equivalent to ECG123A / NTE123A).
Anyway, all this is available via online search now -
http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm (http://nte01.nteinc.com/nte/NTExRefSemiProd.nsf/$$Search?OpenForm)
Datasheet for equivalent:
http://www.nteinc.com/specs/100to199/pdf/nte123ap.pdf (http://www.nteinc.com/specs/100to199/pdf/nte123ap.pdf)
Have fun!
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I just found datasheet360.com on the wilderness of talking electronics.com. I just did a quick search of the 2n2222: I gave me a list
of 2n2222 datasheets with many different manufacture. unlike datasheet.com or datasheetarchive.com it has a usable interface that is simple yet can narrow down search results.
http://Datasheet360.com (http://Datasheet360.com)
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hi all, I'm new to the forum and not know if it the correct place, but I need information about as a microcontroller Philips AW3429.2 like can see in the picture. thanks to all. Javier
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What's wrong simply grabbing them from the manufacturers website ? All those cyber-squatter sites like all-datasheet and others do nothing else but make you jump through hoops to get a pdf file. And very frequently they present you the wrong one. I have a lot of instances where you land on these sites and the datasheet isn't even there.
Another problem is that they often have old versions of the datasheet with outdate information or mistakes.
my advice : ALWAYS go to the manufacturers site FIRST. if you don't know the manufacturer : go to Digikey or Mouser websites and type in the partnumber. you will get a list of parts: 99.9 % of the parts these guys sell has the link to the REAL datasheet from the manufacturer. Simply click on the icon there and you will have the latest version.
If it's an obsolete part THEN, and only THEN can you use those garbage collectors, and spewers, like alldatasheet, chipfind. There's even an outfit that sells you a subscription to their datasheet collection. These guess essentially sell you PDF files that they do not own , or are licenced to sell. ( yes the datasheets do carry a copyright by their writers and companies that own them)
Google relly needs to make work of eliminating all those datasheet squatter sites.
THANK YOU! :-+
+1
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Note that only the main datasheet for a part cannot be enough.
Most (digital) parts have errata sheets, that require careful reading if you don't want to get stuck for DAYS at an odd problem. And you do want to have the most recent version, claiming (hopefully) all the bugs for each silicon revision.
Some CPU datasheets have separate user manuals, summary datasheets, or microchip even list each peripheral in it's own document. For a PIC32 there are like 24+ PDF's on 1 chip's page , all with useful information.
Then there are application notes, sample schematics/projects and/or evaluation boards that can be useful for designing as well. These are neither found on these generic websites.
Chances are you won't find these very useful documents easily (or at all) on alldatasheet.com or a like.
@Simon: User manuals or datasheets from NXP/ST ARM microcontroller parts can be a rollercoaster-ride-with-the-scrolling-wheel as well.. ;)
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Some CPU datasheets have separate user manuals, summary datasheets, or microchip even list each peripheral in it's own document. For a PIC32 there are like 24+ PDF's on 1 chip's page , all with useful information.
Ah yes, microchip, they are experts at scattering information to the 4 winds, even withing the same datasheet !
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Good google search if you're bored (or if you have a pdf sucking tool of some sort).
https://www.google.com.au/#bav=on.2,or.r_qf.&q=filetype:pdf+volt+datasheet&sa=N&start=0 (https://www.google.com.au/#bav=on.2,or.r_qf.&q=filetype:pdf+volt+datasheet&sa=N&start=0)
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Heres a electronic parts x-ref search engine
http://www.allxref.com/ (http://www.allxref.com/)
********************************
SMD components
SMD-Databook 2012
www.turuta.md (http://www.turuta.md)
EDIT: Scrol down the page to see the book.There are other books too.
listed as coming soon:
World transistor databook
Color and irregular marking of electronic components
Small audio signal integrated circuits
Low power management integrated circuits
Mobile phones periferal integrated circuits
Miniature LOGIC integrated circuits
i`m in no way connected to the site,i just thought these books would be usefull,
:)
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A very large number of stereo schematics and manuals are at http://www.hifiengine.com (http://www.hifiengine.com)
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i think that http://www.datasheetcatalog.com/ (http://www.datasheetcatalog.com/) is my favorite... :)
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What's wrong simply grabbing them from the manufacturers website ? All those cyber-squatter sites like all-datasheet and others do nothing else but make you jump through hoops to get a pdf file. And very frequently they present you the wrong one. I have a lot of instances where you land on these sites and the datasheet isn't even there.
Another problem is that they often have old versions of the datasheet with outdate information or mistakes.
my advice : ALWAYS go to the manufacturers site FIRST. if you don't know the manufacturer : go to Digikey or Mouser websites and type in the partnumber. you will get a list of parts: 99.9 % of the parts these guys sell has the link to the REAL datasheet from the manufacturer. Simply click on the icon there and you will have the latest version.
If it's an obsolete part THEN, and only THEN can you use those garbage collectors, and spewers, like alldatasheet, chipfind. There's even an outfit that sells you a subscription to their datasheet collection. These guess essentially sell you PDF files that they do not own , or are licenced to sell. ( yes the datasheets do carry a copyright by their writers and companies that own them)
Google relly needs to make work of eliminating all those datasheet squatter sites.
I second this. Great advice! :-+
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just google the part and within the first page there will be at least two results from datasheet archive sites
I usually google the part number and add "pdf", works everytime :)
Try to add "filetype:pdf" instead of just "pdf". Even better ;)
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i think that http://www.datasheetcatalog.com/ (http://www.datasheetcatalog.com/) is my favorite... :)
Yes, mine too! I guess its the only one without those moving banners, and almost hidden download buttons. Simple and good looking, I like it :D But sometimes it doesn't have parts, that other sites have.
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The data sheet did not load for me .
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The data sheet did not load for me .
From which site? http://www.datasheetcatalog.com/ (http://www.datasheetcatalog.com/) ?
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I like to use
http://www.partbuyer.com/ (http://www.partbuyer.com/)
and
http://www.eciaauthorized.com/ (http://www.eciaauthorized.com/)
because you can access not only to the datasheet but also to estimated quote and authorized distributor.
They do not work for all components but it is quite effective for common parts.
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I use http://www.findchips.com/ (http://www.findchips.com/) O0
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You should avoid all the plethora of crap WowLotsOfDatasheets GetYourDataSheetsHere.com sites that are out there, you'll find nothing but ads and banners and crap, and you'll be jumping through hoops trying to find the datasheet.
Do a Google query, and look at the results carefully - pick out the ones that are direct links to PDFs, especially if you see the name of a recognised semiconductor/electronics company in the URL - this approach will help you filter out the crap and go directly to an accurate, usable datasheet with no bullshit.
Or, look up the part using a major distributor such as Digi-Key and from each Digi-Key product page you'll get a direct bullshit-free link to the datasheet with a single click.
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Datasheets of various pcb raw material for downloading, hopefully it's useful :), http://www.atechcircuit.com/pcb-news-resource/download (http://www.atechcircuit.com/pcb-news-resource/download)
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Digi-Key almost universally links directly to the manufacture's datasheets from the part pages. As long as the link continues to exist, it should be the direct link to the manufacturer's website and the most current datasheet. I only use the datasheetyyy.xxx websites if it's a long gone part.
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I have a mild problem, trying to find a service manual for a National Panasonic sg-3060l and can only find pages where you have to pay up a sum of cash.
does anyone know a good site that often has hard-to-get manuals?
/MrZwing
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Not Datasheets but for manuals I have found "http://elektrotanya.com" usefull.
I think its Hungarian and needs a bit of messing about to get it mostly in english.
Dave
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These links are really useful!
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I have this integrated ci on a speed controller to an ac motor. (M340f133)) .Beside this controller, there was a quarzt .For reasons unknown this quart has disappeared.can to help me someone with data sheets from this controller? "I would like to know how Mhz have this quartz?
Thank you
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I often search datasheet on company's websites:
http://www.maximintegrated.com/en.html (http://www.maximintegrated.com/en.html)
http://www.ti.com/ (http://www.ti.com/)
http://www.nxp.com/ (http://www.nxp.com/)
http://www.siemens.com/entry/cc/en/ (http://www.siemens.com/entry/cc/en/)
https://www.fairchildsemi.com/ (https://www.fairchildsemi.com/)
http://www.benthowave.com/ (http://www.benthowave.com/)
http://www.atmel.com/ (http://www.atmel.com/)
http://www.arm.com/ (http://www.arm.com/)
http://www.intersil.com/en.html (http://www.intersil.com/en.html)
http://www.phillipscomponents.net/ (http://www.phillipscomponents.net/)
http://toshiba.semicon-storage.com/eu/top.html (http://toshiba.semicon-storage.com/eu/top.html)
And:
http://www.datasheet4u.com/ (http://www.datasheet4u.com/)
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I just find this website:
http://www.irf.com/ (http://www.irf.com/)
I hope it useful
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Heh anyone see this from OPs link http://www.msarnoff.org/chipdb/WIRE (http://www.msarnoff.org/chipdb/WIRE)
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This company has a datasheet archive;
http://www.sphere.bc.ca/test/data.html (http://www.sphere.bc.ca/test/data.html)
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Just as valuable as finding a data-sheet is finding out if a given part is actually available.
I find this website invaluable...
http://www.findchips.com/ (http://www.findchips.com/)
I second that. I use findchips neafly every day, it is a superb resource for availability AND prices estimates.
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Link (https://www.eevblog.com/forum/beginners/datasheet-database-compiled-(72016)/msg983645/#msg983645) to an updated and streamlined thread here on EEVBlog that includes all free and unbroken links from this thread with additional direct manufacturers datasheet search links.
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I tend to use Mouser's site (http://www.mouser.co.uk (http://www.mouser.co.uk)), type the part into the search box, then on the product page select the datasheet, in two years of doing this I have only found one product listed that does not have a datasheet.
Hope it helps someone.
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hi there im trying to find some info for a nixie tube ive searched the internet but have drawn a blank
its a nic dg 12b i believe they were used in sharp calculators once
any one point me in the right direction for a data sheet
thanks scully
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I find that the manufacturer is usually the best place to go, as others have said. But sometimes an obsolete part from an old circuit may not be listed. I use these resources in order of appearance, and haven't failed in finding what I am looking for, well, so far!
1. Manufacturer Website
2. Distributors - DigiKey (http://www.digikey.com), Mouser (http://www.mouser.com), Element14 (Newark in USA) (http://www.element14.com), Arrow (http://www.arrow.com).
3. Datasheet Archives - IEEE Datasheets 360 (http://www.datasheets360.com/), and Octopart (http://www.octopart.com).
Octopart is pretty cool as you can search for your parts, and they show you which distributors have it in stock and the price comparison happens in the search results. You can also access the datasheets there. Octopart is owned by Altium, I believe.
I hope this helps someone!
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Personally I recommend that beginners don't waste their time with crap like alldatasheet, datasheetcatalog and the like. Just ads and spam.
Try a Google for the part and see what results you get. Look for direct PDF links from the reputable semiconductor companies, or try their websites directly if you can identify the device manufacturer.
Or try a distributor like Digikey. Look up the part and the product page will give you a no-fuss datasheet direct link.
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wow what a great thread.
IMO there are two sites which are very useful:
The 1st is the great alldatasheet, it has a large number of parts pdf to download.
The 2nd is the https://upverter.com (https://upverter.com), It has a useful feature named Parts Concierge.
And the best for me is Datasheetr datasheet info site (http://www.datasheetr.com), which is super fast for me to search info when I do design.
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https://www.semicon-data.com/index.html (https://www.semicon-data.com/index.html) some PDF's require an active account to be opened .I use it to cross reference older numbers to new ones.
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just google the part and within the first page there will be at least two results from datasheet archive sites
i tried this with one diode i have: DECIA7 and no you dont get a datasheet therefore propably a subject for a thread on its own
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Can anyone point me to a datasheet for the 2SC2291, it seems pretty non-existent :wtf:
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Here's a public FTP server that's chock full of schematics, datasheets and various other goodies including stuff for laptop motherboard repair.
ftp://helpedia.com/pub/temp
About 100+GB of stuff
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Had my best luck here... i'm sure you've found what you're looking for already https://www.electronicsdatasheets.com/ (https://www.electronicsdatasheets.com/) :)
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where do I find the datasheet for these two SOT23-3 package (Attachment)
Google does not give me much.
SMD code
DFJC -sot23-3
E5JA -sot23-3
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I am surprised ??? that no one ever mentioned about https://components101.com/ (https://components101.com/)
This place has been a life saver for me, it not only provides datasheet but also explains how to use that component or sensor with application circuits. It is especially useful for beginners since it covers a lot of modules and sensor which sometimes does not have a proper datasheet :-+
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The manufacturers website and distributor pages are the best source, those datasheet sites could be out of date or show data sheets from different manufacturers. Many jellybean parts like the 2N7000 come with various specs and pin-outs.
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Just wanted to pitch in here as the person that keeps all the documentation on our website up to date. We only keep our own site up to date - we do not have agreements with any of these other sites mentioned to feed them with the latest version of any drawing. As for distributors, we feed our authorised distributors a list of links so they can link direct - if they are taking their own copy we can't guarantee it's up-to-date I'm afraid.
As an engineer I also would go straight to the manufacturer first whenever possible, for the same reasons. However, I do realise that not as many older or obsolete drawings are kept on manufacturer websites, and these sites may be useful for these documents. Other manufacturers may also have larger teams that can ensure documentation is kept updated at other sources.
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A lot of data sheets are not available to public...
Sent from my SM-G610F using Tapatalk
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One more to add:
http://www.datasheetarchive.com/ (http://www.datasheetarchive.com/)
I am fairly new to finding out what part I have. I like salvaging items from boards.
For example I have a part that has d2396 on one line. On a lower line are a J and a strange T 08 and at the top it looks like an R.
When I did a search for d2396 I got d2396 from Bristol Electronics and I also found a 2SD2396K from Digikey.
Can you tell who made the chip?
Is there any consistency on the markings?
P.S. I saw a video with a guy reviewing a electric vacumn desoldering gun. It made short work of removing chips, etc.
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Is there somewhere a look-up-table for all the abbreviations used in datasheets? I get Vr, If etc. but I am quickly lost after that.
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Usualy if a datasheet is not on a major vendor website, it means it's long obsolete.
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If you can't find the datasheet, you might be able to find the databook here at Internet archive. There are many manufacturers, quite a few years including some from the 60's.
archive.org
Or just google Internet Archive.
I downloaded a bunch of databooks. Motorola, texas Instruments, Philips, Toshiba, Hitachi, Sony, Panasonic, etc., etc., etc.
If you use a tablet, download them to a large USB stick or memory card.
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Hello ;
This is a 10 years old post and still alive until now and I still believe that alldatasheet website is the leader source for components datasheets ;)
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Is it uncommon or unusual to just contact manufacturer (through email) and ask them for data sheet?
Iv got ATX power supply that i want to fix and modify, but can't find datasheet anywhere.
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Doesn't look like it's been mentioned so far - I personally reccomend www.manualslib.com (http://www.manualslib.com). I frequently find manuals I need for work on there, and the layout is reasonably ok.
Is it uncommon or unusual to just contact manufacturer (through email) and ask them for data sheet?
Iv got ATX power supply that i want to fix and modify, but can't find datasheet anywhere.
Not unusual at all. They're not obligated to be helpful, but most big companies will try and help find what you're looking for (then try and sell you stuff).
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As a novice I like the old data sheets from the likes of ON Semiconductor and Texas Instruments. They have the usual data but then they go further into example circuits which I find very handy. The newer data sheets don't have this so much.
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I am noticing that a lot of the spammy web sites are creating phony PDFs to take advantage of those of us who search for datasheets using Google's "filetype:pdf" advanced search parameter. One way which I now use to defeat these spammers is by adding "absolute maximum" (in quotes) to the search criteria. I find that this phrase is almost universally present in electronic component datasheets.
Also, if you wish to restrict your search to a particular site, use something like "site:ti.com" as a search parameter.
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Good idea
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Catalogue of Tesla parts https://teslakatalog.cz/ (https://teslakatalog.cz/) in Czech.
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This may help someone.
https://www.eevblog.com/wiki/index.php?title=Component_Search_Engines (https://www.eevblog.com/wiki/index.php?title=Component_Search_Engines)
https://www.hobby-electronics.info/en/datasheets-search/ic-transistor-search-engines (https://www.hobby-electronics.info/en/datasheets-search/ic-transistor-search-engines)
https://www.surplussales.com/cgi-bin/cart.pl?name=(CPF)+611.4-502J630&price=5.50:1:5:25:4.50:100:4:500&custom1=Mial+Polystyrene+Capacitor,+5000pF,+630v&return=/Capacitors/Poly-Unelco.html (https://www.surplussales.com/cgi-bin/cart.pl?name=(CPF)+611.4-502J630&price=5.50:1:5:25:4.50:100:4:500&custom1=Mial+Polystyrene+Capacitor,+5000pF,+630v&return=/Capacitors/Poly-Unelco.html)
Bless everyone who takes the time to share their wisdom:)
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Catalogue of Tesla parts https://teslakatalog.cz/ (https://teslakatalog.cz/) in Czech.
Tesla? is that site for real?
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It is shortcut from "TEchnika SLAboprouda" freely translated as low current technology. The parts are common on east Europe markets (communist block). More details in wikipedia (https://en.wikipedia.org/wiki/Tesla_(Czechoslovak_company)). I'm not sure if there is something what make sense to mention, since they have produced a lot of copies of western parts and can be directly exchanged with originals. Some have unique name, but for example logic ICs used same numbering.
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Gosh, so many sites with information to research, Thanks to all who Contributed.
Bigmalc40
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Is there such a website where you can upload your own data manuals for others to download?
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Can anyone please share their best go to for searching for websites for schematics for musical amplifiers, guitars, basses, harp amps?
Bless everyone for openly sharing their wisdom freely here!!!
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If you want to search for PDFs at the Wayback Machine, replace "%s" with your search term.
https://web.archive.org/pdf/search/%s (https://web.archive.org/pdf/search/%s)
For example ...
https://web.archive.org/pdf/search/lm339 (https://web.archive.org/pdf/search/lm339)
You can also create a custom search engine in your browser using the above URL.
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I never use the site directly, a google + name + datasheet work very well and fast.
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search "part number filetype:pdf", it always work
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Hi Guys,
I was literally going to create a new post and then i came across this database related thread and thought .."Perfect".
Let me explain what was happening,
Short Explanation : I'm Posting a RELIABLE E.S.R. List
Granted Beginners won't understand, so.. here's the explanation before the list.
SUBJECT : GAINING RELIABLE E.S.R. VALUES TO KNOW IF A CAPACITOR IS GOOD OR BAD
HISTORY : I'm 50 years old, I have used this list for at least the last 40 years and i have not had to update it in the last 10 years at least.
Let me explain FOR THE NEWBIES
When Measuring capacitors when fixing stuff, You want to know the capacitor works.
so...
- You may crack out a continuity tester (This is a very poor way of testing a capacitor)
- You may crack out a Digital Multimeter in Capacitance Mode and do it that way (Also not very good, and doesn't work in Circuit)
- You may even buy an ESR Meter or component tester and it has a very tiny ESR list on it, or someone may have told you that
"Just keep it under 0.2 Ohms and you'll be right" well that's not correct either and the list you get with the ESR tester is not a very good
list
You're going to quickly learn
1. You need to test the caps reliably so that you don't install a shit capacitor in a unit thinking it was good and fixed because
this will cost you time and money
2. You need to know what value to expect NO MATTER WHAT THE CAPACITOR VALUE IS
Now yes you can download the datasheet, but
- You need to get the Exact Brand
- The Exact capacitance value
- The Exact voltage rating
- Th Exact Tolerance Rating
- The Exact Physical size
Because all of these things can vary the E.S.R. of a capacitor.
NOW HERE IS WHERE I SAVE YOU DECADES OF HEADACHES AND RESEARCH
Once upon a time i was confused as hell and i said this to myself ..
1. Given that different brands of same cap values can have Different E.S.R. Readings. How do we unify this a bit better so we don't have to store thousands of readings for 1 capacitor value ?
2. Do i need to have a list for EVERY SINGLE CAPACITOR VALUE OUT THERE ?
ANSWERS
Answer 2 First.. No you don't need to have in your list Every single cap value, You just need to have EVERY VALUE for the one's that you commonly use in your common applications and fixes.
you will come to understand that fixing monitors are going to have certain common cap values, then.. fixing Laptops are going have different ones, Fixing audio amplifiers are going to
different one's again. Let your electronics journey organically dictate which it is.
Answer 1 - Ok, so what you do is this (i have already done this) so let me explain it.
Let's say that we have 680uF capacitor , 100V Rated
Lets say the manufacturer datasheet says that the ESR should be 0.3 Ohms
OK, well all we need to know is. WHAT VALUES ARE WE GOING TO ACCEPT IN OUR WORK
Because this is all that is important
In my list for this capacitor i have the following values 0.07 0.13 0.18
LET ME EXPLAIN HOW THIS WORKS
the lowest figure is THE LOWEST MEASUREMENT I HAVE EVER TAKEN ON ANY CAPACITOR IN MY LIFE FOR THAT VALUE
the highest figure is THE UPPER LIMIT THAT I WILL ACCEPT AND WON'T GO BEYOND and that i feel confident with
The Middle figure is the average of ALL CAPACITORS EVER TESTED IN MY LIFE FOR THAT VALUE
so here is how this list was created.
1. you need to have some high E.S.R. values and blow shit up to know "Ohh right, so i can't go that high" LOL
2. if you remove say 10 capacitors from a board, Chances are they are not all going to be bad. What you do is.. Measure the ESR of all them and make sure they are pretty close to each other
in value of ESR (This is a good starting point).
AS A PERSONAL DECISION (and you are free to change the spreadsheet in anyway that you wish)
1. I didn't like using 0.0 as a minimum because, it goes without saying that that's a good value, I NEEDED REAL VALUES
2. I needed to know the Max that WOULD ABSOLUTELY GUARANTEE A FIX and that i didn't have to worry about it.
3. The Middle is the AVERAGE (Total number of capacitors tested and their total values added up divided by the number of capacitors tested.
Now when you get a new batch of say 20 but you have a mid reading of 0.13 you do the calculation based on 21 capacitors and the first one had an ESR of 0.13 this way , You are including every single capacitor that you have ever included in your list
LASTLY... THIS LIST GETS UPDATED LITERALLY EVERYTIME I USE OR TEST A NEW CAPACITOR thus over time it gets checked for accuracy
Now, all the values i have in this list ARE ALL THE VALUES I HAVE NEEDED TO USE IN 50 YEARS and all the ESR values are the ESR values that have always guaranteed me a fix
if you get to a point where YOU CHOOSE you want to increase the max value.......... THAT'S FINE, Just test it that it does work on the product safely. In some cases i do concede that the max value could be much higher according to the manufacturer datasheet, it's just that i have never tested a cap that high, and thus never had the need to increase the max value.
so with that being said and now you understand how the list came about
HERE IS THE LIST IN TEXT FORMAT
AND I HAVE ATTACHED A SPREADSHEET VERSION OF IT AS WELL, Feel free to use it anyway you like. I literally had to organise all my caps recently, I have 10,s of thousands of them, but only these values. so i figured i would share the list with the community
FOR BEGINNERS THIS IS AN INVALUABLE LIST FOR ELECTRONICS REPAIR.
Inventory List E.S.R.(Low) E.S.R.(Average) E.S.R.(High)
0.1 uF / 50 V 3.00 3.00 3.00
0.22 uF / 50 V 3.00 3.00 3.00
0.47 uF / 50 V 2.74 2.73 2.77
1 uF / 25 V 3.10 3.10 3.10
1 uF / 50 V 3.30 3.50 5.00
1 uF / 250 V 5.00 5.00 5.00
2.2 uF / 50 V 2.00 3.18 3.70
3.3 uF / 50 V 2.60 2.90 3.00
3.3 uF / 160 V 1.10 1.10 1.10
4.7 uF / 50 V 0.73 1.81 3.00
4.7 uF / 100 V 1.38 1.48 1.58
6.8 uF / 25 V 0.01 0.01 0.01
6.8 uF / 100 V 0.04 0.04 0.04
6.8 uF / 400 V 1.10 1.10 1.10
6.8 uF / 450 V 3.10 3.60 4.40
10 uF / 16 V 1.30 3.50 5.00
10 uF / 25 V 2.70 2.70 2.70
10 uF / 50 V 1.30 1.70 2.00
10 uF / 250 V 0.43 0.43 0.43
10 uF / 350 V 2.40 3.00 4.30
10 uF / 450 V 1.12 4.00 4.20
10 uF / 500 V 3.10 3.20 3.20
20 uF / 10 V 0.05 0.05 0.05
22 uF / 16 V 2.00 2.00 2.00
22 uF / 25 V 0.38 0.12 0.47
22 uF / 50 V 0.44 1.15 2.00
22 uF / 63 V 1.10 1.10 1.10
22 uF / 100 V 0.58 0.71 0.84
22 uF / 200 V 0.62 0.65 0.67
22 uF / 315 V 0.80 0.80 0.84
22 uF / 350 V 1.50 1.80 1.90
22 uF / 400 V 0.60 1.30 1.40
22 uF / 450 V 0.80 1.07 1.40
33 uF / 16 V 0.72 0.75 0.77
33 uF / 25 V 0.49 0.49 0.49
33 uF / 35 V 0.04 0.04 0.04
33 uF / 50 V 0.05 0.11 0.30
33 uF / 100 V 0.33 0.33 0.44
33 uF / 250 V 0.28 0.29 0.42
33 uF / 350 V 0.90 1.00 1.40
33 uF / 400 V 0.64 1.11 1.90
33 uF / 450 V 1.00 1.00 1.00
39 uF / 400 V 0.37 0.49 0.60
39 uF / 450 V 0.63 0.82 1.00
47 uF / 10 V 0.83 0.93 1.02
47 uF / 16 V 0.29 1.04 2.00
47 uF / 25 V 0.28 0.38 0.46
47 uF / 35 V 0.50 0.50 0.50
47 uF / 50 V 0.00 0.76 2.00
47 uF / 63 V 0.00 0.02 0.03
47uF / 100 V 0.26 0.31 0.35
47 uF / 160 V 0.31 0.31 0.31
47 uF / 250 V 0.06 0.52 0.83
47 uF / 350 V 0.38 0.46 0.54
47 uF / 400 V 0.41 1.00 1.50
47 uF / 450 V 0.71 0.71 0.71
50 uF / 450 V 0.90 0.90 0.90
56 uF / 35 V 0.00 0.00 0.01
56 uF / 450 V 0.80 0.80 0.80
63 uF / 68 V 0.00 0.00 0.01
68 uF / 63 V 0.01 0.02 0.10
68 uF / 100 V 0.05 0.05 0.05
68 uF / 160 V 0.13 0.15 0.16
68 uF / 200 V 0.59 0.59 0.59
68uF / 250 V 0.19 0.23 0.40
68 uF / 400 V 0.29 0.85 0.87
68 uF / 450 V 0.37 0.49 0.60
82 uF / 100 V 0.08 0.08 0.08
82 uF / 450 V 0.24 0.48 0.65
100 uF / 6.3 V 2.60 2.90 3.10
100 uF / 10 V 0.25 0.34 0.90
100 uF / 16 V 0.16 0.32 0.50
100 uF / 25 V 0.06 0.59 1.00
100 uF / 35 V 0.10 0.60 1.00
100 uF / 50 V 0.00 0.04 0.20
100 uF / 100 V 0.04 0.15 0.30
100 uF / 160 V 0.28 0.34 0.40
100 uF / 220 V 0.10 0.10 0.10
100 uF / 400 V 0.25 0.29 0.32
120 uF / 450 V 0.00 0.12 0.24
150 uF / 35 V 0.00 0.11 0.24
150 uF / 63 V 0.04 0.04 0.04
150 uF / 100 V 0.05 0.05 0.05
150 uF / 250 V 0.16 0.25 0.37
150 uF / 275 V 0.20 0.29 0.36
150 uF / 400 V 0.10 0.10 0.10
150 uF / 420 V 0.35 0.35 0.60
150 uF / 450 V 0.05 0.27 0.40
160 uF / 220 V 0.10 0.10 0.10
180 uF / 250 V 0.01 0.03 0.21
180 uF / 450 V 0.16 0.24 0.31
220 uF / 6.3 V 0.03 0.12 0.22
220 uF / 10 V 0.11 0.11 0.30
220 uF / 16 V 0.04 0.21 0.40
220 uF / 25 V 0.02 0.16 0.23
220 uF / 35 V 0.01 0.07 0.30
220 uF / 50 V 0.01 0.06 0.17
220 uF / 100 V 0.00 0.12 0.19
220 uF / 160 V 0.14 0.14 0.14
220 uF / 220 V 0.08 0.08 0.08
220 uF / 250 V 0.10 0.10 0.10
220 uF / 400 V 0.16 0.17 0.17
220 uF / 450 V 0.08 0.09 0.09
250 uF / 220 V 0.08 0.09 0.10
270 uF / 35 V 0.00 0.00 0.04
270 uF / 63 V 0.05 0.05 0.06
270 uF / 400 V 0.08 0.08 0.08
330 uF / 10 V 0.03 0.09 0.14
330 uF / 16 V 0.03 0.11 0.23
330 uF / 25 V 0.00 0.18 0.20
330 uF / 35 V 0.00 0.01 0.10
330 uF / 50 V 0.06 0.06 0.06
330 uF / 100 V 0.05 0.07 0.10
330 uF / 200 V 0.12 0.16 0.19
330 uF / 250 V 0.08 0.10 0.12
330 uF / 280 V 0.05 0.08 0.10
330 uF / 450 V 0.10 0.15 0.19
390uF / 35 V 0.02 0.02 0.05
390uF / 100 V 0.05 0.12 0.12
390uF / 450 V 0.10 0.13 0.15
470 uF / 10 V 0.04 0.04 0.04
470 uF / 16 V 0.01 0.03 0.23
470 uF / 25 V 0.01 0.03 0.17
470 uF / 35 V 0.00 0.01 0.09
470uF / 100 V 0.02 0.12 0.18
470uF / 140 V 0.11 0.11 0.11
470uF / 200 V 0.03 0.12 0.10
470uF / 250 V 0.09 0.09 0.09
560 uF / 10 V 0.12 0.16 0.20
560uF / 25 V 0.02 0.02 0.04
560uF / 35 V 0.00 0.00 0.05
560 uF / 200 V 0.16 0.17 0.18
560 uF / 250 V 0.13 0.15 0.17
560 uF / 280 V 0.05 0.04 0.10
680 uF / 10 V 0.07 0.32 0.50
680 uF / 16 V 0.00 0.00 0.05
680 uF / 25 V 0.00 0.09 0.11
680 uF / 35 V 0.00 0.00 0.05
680 uF / 50 V 0.05 0.05 0.05
680 uF / 100 V 0.07 0.13 0.18
680 uF / 200 V 0.11 0.15 0.24
680 uF / 250 V 0.10 0.10 0.10
820 uF / 25 V 0.03 0.03 0.03
820 uF / 250 V 0.11 0.11 0.11
1000 uF / 6.3 V 0.00 0.00 0.00
1000 uF / 10 V 0.00 0.02 0.06
1000 uF / 16 V 0.00 0.02 0.07
1000 uF / 25 V 0.00 0.04 0.20
1000 uF / 35 V 0.00 0.04 0.07
1000 uF / 50 V 0.04 0.08 0.11
1000 uF / 75 V 0.05 0.05 0.05
1000 uF / 100 V 0.07 0.07 0.07
1000 uF / 230 V 0.07 0.07 0.07
1000 uF / 250 V 0.08 0.08 0.08
1200 uF / 6.3 V 0.00 0.01 0.09
1500 uF / 6.3 V 0.00 0.02 0.04
1500 uF / 10 V 0.00 0.10 0.14
1500 uF / 16 V 0.00 0.00 0.04
1500 uF / 25 V 0.00 0.00 0.04
1500 uF / 35 V 0.00 0.07 0.11
1800 uF / 80 V 0.08 0.08 0.08
2200 uF / 10 V 0.04 0.13 0.17
2200 uF / 6.3 V 0.00 0.00 0.00
2200 uF / 16 V 0.00 0.00 0.10
2200 uF / 25 V 0.00 0.05 0.09
2200 uF / 35 V 0.11 0.12 0.12
2200 uF / 100 V 0.06 0.06 0.06
3300 uF / 6.3 V 0.00 0.01 0.06
3300 uF / 10 V 0.03 0.04 0.05
3300 uF / 25 V 0.00 0.09 0.11
3300 uF / 35 V 0.01 0.01 0.01
3300 uF / 100 V 0.05 0.05 0.06
4700 uF / 25 V 0.06 0.06 0.06
4700 uF / 35 V 0.16 0.16 0.16
4700 uF / 50 V 0.04 0.04 0.04
EDIT : 1 last thing
If you ever come across a value that is not in this list what you do is this
1. Enter the value in the correct position
2. test the capacitor you have
But the obviousness of the problem is... HOW DO YOU KNOW WHAT THE CORRECT VALUE IS ?
Answer : Look at the ESR value of the caps above and below it as there is direct correlation when increasing or decreasing in value
between capacitance and voltage. so just gets the values of the caps above and below, after that, when you get more of that value
cap you can test them against the value you currently have an update it
Lastly you can go to one of the suppliers and get the datasheet and look up the ESR value if available