New segment!
Let's take a look at some components that have released the magic smoke.
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Hi I Want to try out a new segment called Eevee Smoke to see if anyone likes this or not? I Think it might be fun where I briefly show you just for a couple of minutes, maybe every week or something like that, a photo, or maybe occasionally a video or something like that of a component where the magic smoke has escaped. So I thought I'd give it a go so it could be fun and maybe educational. So quick I asked on Twitter for people to work send stuff in it is the and Infineon s PSD P. Blue O Six S60 it's a Silicon Carbide Schottky Diode.

It's the world's first six hundred volt Schottky Diode and it's in a to-220 package, but it's in a weird ask - - - - package which chops out the middle pin there to get the voltage spacing required between these two pins here and then it just shorts out the others because the center pin goes off to the tab here - Pin! What a revolutionary semiconductor material. Silicon Carbide. Woohoo! And it's fantastic looking - Diode and let's see what happened to this poor thing. So the first cab off the rake is Joseph Smith Smith Smythe Thank you very much Joseph for sending this in.

Look at it. Wah-wah-wah I Love this look it is. Basically it's like imploded. It's it's like something has like like slammed into it physically and concave the the actual package there.

But no it's It's just basically heated up so much that it melted it away. You might even be able to. Maybe that's like the the charred remains of the die inside there, but oh goodness that is an absolute classic look at that thing. It's mounted next to two big MOSFETs there are Infineon ones as well.

they they are cool Mas once once again revolutionary high voltage technology. 650 volts they you very much hence the hence the large Tio2 4:7 package to get the pin spacing and stuff like that. Well why? best idea. So an ultra low gate charge.

everything else fantastic but look at that there are they mounted onto a large heatsink there with that sort of greenish kind of stuff. is going to be some thermal thermal adhesive pad kind of thing because I look there's no screws actually bolting these things on so they just basically are stuck onto there and it's just imploded. I Love it. Look at these solder joints down the bottom here.

by the way, take a squeeze at those. there's no solder fill, it's coming up through the bottom side. so I don't like that. That's a bit how you doing because if you want current to pass from the solder joint on the bottom side to the top side where you can see the tracers going off here and on the top side then hey it's got to go all through the thin walls and over the edges of the if that pad there.

So yeah that's not to trick, we're gonna fill it over there but yeah, but that's not the reason for the fire so that must have been a gross overload. So if you haven't actually have a look at this thing here we go: I F max. It'll do a non repetitive peak, forward current, non-repetitive of course means it's just like a one-off shot because you don't want to do it again and again and again cuz then the average heap will be too high and it will release the magic smoke like we've seen here. But for 10 microseconds, hey, it'll handle 60 amps.
no worries whatsoever. So there you go. and there's the I squared T value. So yeah, I Think what went wrong there is we had too many amps for too much time and there's your thermal characteristics for those playing along at home and that's the end result.

Oops. And as everyone knows, the active ingredient in all components is the magic smoke. Once it escapes an don't work anymore bugger to put back into, it's tricky. Let me tell you, even with the tongue up the right angle.

but you can actually buy magic smoke refill cans from IBM they used to sell it back in the 70s. There's a manufacturing date fire seventy-six but buy it anymore and just one more for our first episode. Thank you very much Mark Brennan He was repairing this site Tektronix 2465 and check it out. You don't see this very often, but look at that.

It's an X-class cab, x2 class cap like fully rated like proper. Wow Look at all the ratings on there and it has just burst in half. Look at that. The magic smoke is definitely escape from that.

I Mean these are mains rated proper caps I got self-healing properties in them and these are designed for this sort of application. So whether or not it was just a jor, whether or not it was just a gross Serge You can actually see down the bottom here. you can actually see a spark gap. That's what that metal can there is.

So that's actually maybe a don't do this job and stop some of the trends here, but that doesn't seem to be anything else damage there. but wow. I've never seen one of those X-class caps, just had the guts spewed out of it in the magic smoke like that escaped before. Those things are usually pretty darn good caps.

And if you don't know about X-class capacitors, I'm sure I've done a video on it somewhere. They are the ones designed to connect directly across the active and neutral of other mains for our filtering applications. The there's also why class caps which are designed to go between active or neutral and earth. But these X class caps directly across active and neutral.

so any surge on your mains power line is going to be directly across these are X class caps. So oops. So I hope you enjoyed that short news segment if you did give it a thumbs up. If you didn't like you think it's just a waste of time and it's boring as bat poop.

give it a thumbs down or leave your comments. you go me if you want to see it on a separate channel or something like that ie. you love this sort of stuff and you only want to subscribe to this sort of stuff I Know maybe I can do that too. but anyway, that's the first Eevee smoked segment I Thought it'd be fun to showcase stuff, so if you do have anything to it must be naturally escaped smoke.
None of this about you know, hook and deliberately open means up and destroy in frying lids and stuff like that. None of that rubbish. No, we won't naturally escaped smoke with good close-ups like this one. Spectacular fires.

thank you! Where everyone on Twitter who actually sent in some stuff and I've got some more good photos I didn't want this to go for ten minutes, probably ordering on too long already I'll use those in the next segment so send your high-res photos into E V+ Smoke at Gmail.com I Hope you liked it. Catch you next time.

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By YTB

20 thoughts on “Eevsmoke #1 – magic component smoke”
  1. Avataaar/Circle Created with python_avatars MM7WAB An amateur radio womble. says:

    @EEVblog The EX 600V schottky diode looks like it has Exploded rather than melted or imploded. The ejected material is sat on the PCB at the bottom of the photo. Gotta love explosive failure due to rapid thermal expansion grin

  2. Avataaar/Circle Created with python_avatars marcaxe says:

    "Pb-free lead plating" took me a second to get my head around

  3. Avataaar/Circle Created with python_avatars Hugh's garbage trucks says:

    the magic smoke

  4. Avataaar/Circle Created with python_avatars Ben D says:

    Quite interesting. Whatโ€™s more interesting is why YouTube is suggesting this to me in 2020 lol.

  5. Avataaar/Circle Created with python_avatars Rodrigo Beltrรกn Politeo says:

    Infineon's logo is a couple having cheese.

  6. Avataaar/Circle Created with python_avatars Hola! richard konsky says:

    Anyone notice the soldering job horrible barely any soldering.

  7. Avataaar/Circle Created with python_avatars fsr says:

    Maybe the explosion had something to do with the great idea of not using any screws to attach the power semiconductors to the heatsink. Double sided thermal adhesive? Come on! That's a fraction of a mm from a disaster!

  8. Avataaar/Circle Created with python_avatars Necessaryevil 86 says:

    Dave, can you do a video on how to use magic smoke? I know you said it is difficult, but I have collected a few smokeless components which are either expensive of unobtainable, hence worth repairing. (LOL)

  9. Avataaar/Circle Created with python_avatars Spider Mcgavenport says:

    that's my kinda magic.

  10. Avataaar/Circle Created with python_avatars Brian Streufert says:

    "Thats a little bit 'how ya doin'" has got to be the funniest saying I have ever heard. And to top it off is how David says it. I mean honestly, it has be rollin!! ๐Ÿ˜€

  11. Avataaar/Circle Created with python_avatars Michael Rinkle says:

    for whatever reason, I really hate that magic smoke joke.

  12. Avataaar/Circle Created with python_avatars belecciu gheorghe says:

    very nice

  13. Avataaar/Circle Created with python_avatars feynthefallen says:

    Magic smoke refil cartridges… I SO lost it on that….

  14. Avataaar/Circle Created with python_avatars Hola! Cereal Experiments says:

    I'm surprised at how little solder is on the topside of those pads. (Oh, you mentioned that)

  15. Avataaar/Circle Created with python_avatars mechadrake says:

    I had awesome looking incandescent bulb failure, it had tungsten cobwebs formed inside, but during a move they all fell down, and i cannot found the photos I made… But that is not even electronics and not magic smoke too ๐Ÿ˜‰

  16. Avataaar/Circle Created with python_avatars OffGrid Aussie Prepperโ„ข says:

    wud be nice to know what the unit did too duhhhhhhhhhhhhhhhhhhhhhhhhh

  17. Avataaar/Circle Created with python_avatars OffGrid Aussie Prepperโ„ข says:

    smokinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn baby smokinnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

  18. Avataaar/Circle Created with python_avatars WIspotter says:

    Waste of time and bandwidth, 5 minutes I wont get back

  19. Avataaar/Circle Created with python_avatars Watchyn_Yarwood says:

    Great series idea! Please keep them coming!

  20. Avataaar/Circle Created with python_avatars FrankenPC says:

    IBM realized that the replacement electronics market would topple if they sold the magic smoke.

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