Horio Posted September 13, 2011 Report Share Posted September 13, 2011 You guys got to stop posting links to new tools! When it comes to cool handy tools, I have little to no self restraint. Needless to say, I have a semi tester and screwdriver on the way... Quote Link to comment Share on other sites More sharing options...
kevin gilmore Posted September 13, 2011 Report Share Posted September 13, 2011 Don't forget to order this tool. Its absolutely required. http://www.amazon.com/Who-Doctor-Sonic-Screwdriver-Replica/dp/B003FHXMDC Quote Link to comment Share on other sites More sharing options...
deepak Posted September 13, 2011 Report Share Posted September 13, 2011 The first distributor I spoke to told me minimum purchase quantity for k216/j79 was 3000 of each. Digikey just gave me this quote... does this mean they are free? (I called them curious about what it meant, and the plain simple of it is they can't buy them). Sorry guys. The New England rep for Renesas hasn't been very helpful, so if anyone else wants to try their local rep you may have more success. Quote Link to comment Share on other sites More sharing options...
kevin gilmore Posted September 13, 2011 Report Share Posted September 13, 2011 (edited) How much were they at 3000 each? But if its another fuckjob like DALBANI who refuses to stand behind their product, probably not interested. Speaking of which, birgir now has verfied fake K216's also from DALBANI. Here is how to test the fets For the K216 Make an adapter that ties the gate pin to the source pin which goes to the emitter pin in the socket, and the drain goes to the collector. Then test as a NPN. The real ones test at 230 volts, The fakes test much less. Edited September 13, 2011 by kevin gilmore Quote Link to comment Share on other sites More sharing options...
deepak Posted September 13, 2011 Report Share Posted September 13, 2011 I'll ask, but they aren't on the official Renesas distributor list so I am weary of proceeding. Quote Link to comment Share on other sites More sharing options...
Kerry Posted September 14, 2011 Report Share Posted September 14, 2011 (edited) You guys got to stop posting links to new tools! When it comes to cool handy tools, I have little to no self restraint. Needless to say, I have a semi tester and screwdriver on the way... Same here... but I am very happy about it Don't forget to order this tool. Its absolutely required. http://www.amazon.co...a/dp/B003FHXMDC Already got it for my daughter I also go her the 10th doctors along with a TARDIS Edited September 14, 2011 by Kerry Quote Link to comment Share on other sites More sharing options...
ujamerstand Posted September 14, 2011 Report Share Posted September 14, 2011 Just out of curiosity, has prp ever changed manufacturing methods on their PR9372 line resistors? A couple resistors I got are different from the rest in that they are just slightly shinier, is more of a bottled shape versus the pill shape of the rest of the resistors, and all of them have the ends covered with insulation, while most of the other ones have exposed ends that is not covered in insulation. These thinner ones measure just slightly less than the rest of the 100k values. Quote Link to comment Share on other sites More sharing options...
Pars Posted September 14, 2011 Report Share Posted September 14, 2011 They are a small manufacturer, so it would not surprise me if they change now and then a bit. By how much lower do these measure? Within the 1% tolerance? If you are uncomfortable with them, make them replace them. Particularly if they are out of tolerance, though meter calibration would come into play there. Quote Link to comment Share on other sites More sharing options...
ujamerstand Posted September 14, 2011 Report Share Posted September 14, 2011 They are very close. Most of them measures somewhere near 99.8~99.9k, while these ones are closer to 99.5~99.6k. I do see a lot of manufacturing variations, but these ones appears consistently and distinctively different. I guess it's just a different batch? Quote Link to comment Share on other sites More sharing options...
chinsettawong Posted September 14, 2011 Report Share Posted September 14, 2011 I've got the tester and tested 2sk216 that I bought from Pacific-semi and Ebay. They both measured at 230V. I'm quite sure that the ones I got from Pacific-semi are real, but the ones from Ebay looked fake. However, they tested OK too. What's going on? Wachara C. Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted September 14, 2011 Report Share Posted September 14, 2011 (edited) How are you using the tester? The only way to know for sure is a curve tracer. This tester isn't going to be 100% reliable, it just will weed out the obvious fakes. Edited September 14, 2011 by luvdunhill Quote Link to comment Share on other sites More sharing options...
chinsettawong Posted September 14, 2011 Report Share Posted September 14, 2011 (edited) I used it as what suggested by Kevin. I shorted gate with source and plug into the tester. Drain went into collector hole and source in emitter. I set the voltage to 1000V and pushed test button. The number stayed at around 230V. Wachara C. Edited September 14, 2011 by chinsettawong Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted September 14, 2011 Report Share Posted September 14, 2011 (edited) That just means that V_(BR)DSX is in range. For example, I'd expect an IRF610 to have the same number for this test. Also, there are plenty of other devices as well. Unfortunately, you haven't really established much with this test. If it fails, yeah that's great. If it passes, you still have reasonable doubt. Edited September 14, 2011 by luvdunhill Quote Link to comment Share on other sites More sharing options...
kevin gilmore Posted September 14, 2011 Report Share Posted September 14, 2011 This is strictly the obvious fake test. If a k216 tests at 130 volts you know you are going to be in trouble. When a 2sa1968ls tests at 180 volts, you know you are in trouble. You need a real curve tracer to do real tests. So far all the fakes are so obvious, there is no reason to get to step 2. Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted September 14, 2011 Report Share Posted September 14, 2011 It won't take long. I bet you'll find some once all of these T2 start getting built. I give you until the end of the year. Quote Link to comment Share on other sites More sharing options...
spritzer Posted September 14, 2011 Author Report Share Posted September 14, 2011 Yeah, my fake K216's test at 0V so they aren't even mostfets... Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted September 14, 2011 Report Share Posted September 14, 2011 Do you have any that I sold you? I still have a whole mess of these and they all work fine. Anyone interested in paying $10 each? :) Quote Link to comment Share on other sites More sharing options...
chinsettawong Posted September 14, 2011 Report Share Posted September 14, 2011 Well, I won't be using the ones I bought from Ebay. Just from the look, they are not that reliable anyway. Wachara C. Quote Link to comment Share on other sites More sharing options...
luvdunhill Posted September 14, 2011 Report Share Posted September 14, 2011 Yeah, my fake K216's test at 0V so they aren't even mostfets... any idea if this is ESD damage? Quote Link to comment Share on other sites More sharing options...
spritzer Posted September 14, 2011 Author Report Share Posted September 14, 2011 Nope, just crap fakes. 5 real ones were in the bag and they test just fine. Quote Link to comment Share on other sites More sharing options...
Milosz Posted September 14, 2011 Report Share Posted September 14, 2011 Rich-Tech Parts, up in Richmond B.C., claims to have GENUINE Hitachi 2SK216's... http://richtechparts...333-2SK216.html These arrived from RichTech and look to be genuine- the logo looks like the Hitachi logo I've seen on other parts, and the date code looks sensible. Have to wait until my transistor characteristic checker arrives from China to see for sure if these are the real deal. Quote Link to comment Share on other sites More sharing options...
livewire Posted September 15, 2011 Report Share Posted September 15, 2011 QUOTE: " Have to wait until my transistor characteristic checker arrives from China to see for sure if these are the real deal." Yeah, you're gonna love the instructions supplied with this thing. I tried using Google translate but it didnt work..... Quote Link to comment Share on other sites More sharing options...
chinsettawong Posted September 15, 2011 Report Share Posted September 15, 2011 QUOTE: " Have to wait until my transistor characteristic checker arrives from China to see for sure if these are the real deal." Yeah, you're gonna love the instructions supplied with this thing. I tried using Google translate but it didnt work..... You can download an English version of the instruction from one of the sellers. Quote Link to comment Share on other sites More sharing options...
livewire Posted September 15, 2011 Report Share Posted September 15, 2011 (edited) Thank you sir! I will do that. EDIT: I looked at all the open and closed auctions for the manual download. Could not find it on the manufacturer's website either. Do you have a link or auction number? Edited September 15, 2011 by livewire Quote Link to comment Share on other sites More sharing options...
chinsettawong Posted September 15, 2011 Report Share Posted September 15, 2011 The English document is here: http://www.savebase.com/InfoBase/downloads/tmp/DY294_EN_V4b.pdf Quote Link to comment Share on other sites More sharing options...
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