Tantalum Capacitor Scrap Purchasing -- International

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Shark
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by Shark » December 28th, 2014, 8:13 pm

necromancer wrote:what are the markings directly under "BC18" for the long black SMD ?

thanks.
The last piece in your above picture, and I think the one your talking about here, was described to me as an SIP, Single Inline Pole (?) Similar to an IC, but with one set of legs. I was also told they can contain silver or palladium. I haven't been able to confirm that yet, but I have been sorting them into their own container until I have enough to do something with. I think Geo was the one who described that to me, but I can't be sure as it has been a while since then.
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by g_axelsson » December 28th, 2014, 8:18 pm

necromancer wrote:what are the markings directly under "BC18" for the long black SMD ?

thanks.
It should be something with R as it looks like a single in line resistor array. By the way I think you mean SIL, SMD means Surface Mounted Device and there is no surface mounted components seen on that card.

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by mwaurelius » December 28th, 2014, 8:27 pm

Göran:

ACK! And I've been throwing those away after learning they weren't tantalum! :oops: Thanks for the info, now I know where to sort those.

necromancer:

It's not really an SMD, the pins go through the board. They are marked RPxxx, which I think stands for resistor pack. I've been keeping the more modern SMD versions for (I hope) silver solder recovery, but these old ones I break off and toss when they are in the way of recovering other components, pins, etc.

As you can probably tell, I'm hand processing. It might not be profitable, but it's good for learning . . . and boy do I have a lot of that to do.

Mark

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by necromancer » December 28th, 2014, 8:34 pm

thanks to all.

i am always getting some conflicting information about components in general. (not from GRF)
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by g_axelsson » December 28th, 2014, 8:35 pm

mwaurelius wrote:Göran:

ACK! And I've been throwing those away after learning they weren't tantalum! :oops: Thanks for the info, now I know where to sort those.
I've said it before and I will probably say it many times more, use pliers to cut any unknown component in half. You will see that there is a small layered ceramic body inside that capacitor. Compare it with a surface mount MLCC and you will see the similarities. Just as in refining, testing is the key to know what you have and a piece of plastic with two pins sticking out can hide a lot of different kind of components.
A loupe or microscope is a good tool to have though. I never leave home without my loupe.

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by necromancer » December 28th, 2014, 8:41 pm

g_axelsson wrote: I've said it before and I will probably say it many times more, use pliers to cut any unknown component in half. You will see that there is a small layered ceramic body inside that capacitor. Compare it with a surface mount MLCC and you will see the similarities. Just as in refining, testing is the key to know what you have and a piece of plastic with two pins sticking out can hide a lot of different kind of components.
A loupe or microscope is a good tool to have though. I never leave home without my loupe.

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by TantalumRecycle » January 3rd, 2015, 4:28 pm

mwaurelius wrote:As a, hopefully, useful bit of information: It helps to tell which capacitors are tantalum when the manufacturer is kind enough to label the board with different designations for them from the other types. :mrgreen:

Pictured is a 486 mobo ca 1993 made by Magitronic. Note the TCxxx for the two tantalum capacitors in the center and right center of the picture where the other two types are labeled Cxxx and BCxxx.

Now, if somebody happens to know what that BCxxx is . . . Just curious about that.
The two larger yellow capacitors are Yellow Epoxy Capacitors - The others are not.
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by TantalumRecycle » January 3rd, 2015, 4:29 pm

g_axelsson wrote:
mwaurelius wrote:Now, if somebody happens to know what that BCxxx is . . . Just curious about that.
That should be a MLCC and based on age it probably contains palladium and silver.

Similar capacitors : http://www.vishay.com/capacitors/list/product-45164/

Göran

The Egg Drop shaped capacitors are actually Tantalum Capacitors
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by TantalumRecycle » January 3rd, 2015, 4:30 pm

necromancer wrote:what are the markings directly under "BC18" for the long black SMD ?

thanks.
Where is that? I am not sure what you mean by this?
Tantalum Recycling Corp
1701 NW 93rd Avenue
Doral, Florida 33172
T: 800.805.9150
E: info@tantalumrecycling.com
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by TantalumRecycle » January 3rd, 2015, 4:32 pm

g_axelsson wrote:
mwaurelius wrote:Göran:

ACK! And I've been throwing those away after learning they weren't tantalum! :oops: Thanks for the info, now I know where to sort those.
I've said it before and I will probably say it many times more, use pliers to cut any unknown component in half. You will see that there is a small layered ceramic body inside that capacitor. Compare it with a surface mount MLCC and you will see the similarities. Just as in refining, testing is the key to know what you have and a piece of plastic with two pins sticking out can hide a lot of different kind of components.
A loupe or microscope is a good tool to have though. I never leave home without my loupe.

Göran
I agree with the above quote -- With Tantalum you will see a metal with a white lining around it - on MLCC it will be cut fairly easy and you will see there is barely anything in the middle
Tantalum Recycling Corp
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by TantalumRecycle » January 3rd, 2015, 4:34 pm

TantalumRecycle wrote:
g_axelsson wrote:
mwaurelius wrote:Now, if somebody happens to know what that BCxxx is . . . Just curious about that.
That should be a MLCC and based on age it probably contains palladium and silver.

Similar capacitors : http://www.vishay.com/capacitors/list/product-45164/

Göran

The Egg Drop shaped capacitors are actually Tantalum Capacitors
The remaining are MLCC Capacitors
Tantalum Recycling Corp
1701 NW 93rd Avenue
Doral, Florida 33172
T: 800.805.9150
E: info@tantalumrecycling.com
http://www.tantalumrecycling.com

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by the iron dwarf » January 3rd, 2015, 6:51 pm

if in doubt keep things till identified, you can easily dispose of them later but it is harder to get them back if after you have disposed of them you find they contain values.

for capacitors if marked with the polarity and not a normal electrolytic they go in the tantalum bin, if unmarked blob or block they go in MLCC bin and thanks to this thread I now know more.
doubt I will collect enough to be worthwhile for a long time yet.

thank you for this thread to help identify things

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by the iron dwarf » January 11th, 2015, 8:41 am

here are a few I have gathered, most I am reasonably certain of but the types I am less sure of are the blob in the middle and the large metal can types ( these are from about 12mm diameter down to 4mm diameter ).
SAM_0322.JPG
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by g_axelsson » January 11th, 2015, 10:02 am

the iron dwarf wrote:here are a few I have gathered, most I am reasonably certain of but the types I am less sure of are the blob in the middle and the large metal can types ( these are from about 12mm diameter down to 4mm diameter ).
Cut them open and you will see what they are made of. Hint, not all in that box is tantalum.

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by Barren Realms 007 » January 11th, 2015, 11:01 am

The ones that have the red circles are not tantalum

SAM_0322.JPG
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by TantalumRecycle » January 11th, 2015, 1:45 pm

the iron dwarf wrote:here are a few I have gathered, most I am reasonably certain of but the types I am less sure of are the blob in the middle and the large metal can types ( these are from about 12mm diameter down to 4mm diameter ).
SAM_0322.JPG

Thank you very much for the picture --- The metal cased capacitors in your bin is not Tantalum Capacitors -- They are Aluminum Electrolytic Capacitors.

All of the questionably marked capacitors are not Tantalum Capacitors. But everything else are definitely Tantalum Capacitors
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by TantalumRecycle » January 11th, 2015, 1:46 pm

the iron dwarf wrote:if in doubt keep things till identified, you can easily dispose of them later but it is harder to get them back if after you have disposed of them you find they contain values.

for capacitors if marked with the polarity and not a normal electrolytic they go in the tantalum bin, if unmarked blob or block they go in MLCC bin and thanks to this thread I now know more.
doubt I will collect enough to be worthwhile for a long time yet.

thank you for this thread to help identify things
Our company now purchases MLCC Capacitors as well.
Tantalum Recycling Corp
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T: 800.805.9150
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by the iron dwarf » January 11th, 2015, 3:20 pm

I thank you for your help T R and other posters here too, I will continue collecting what I can ( and will discard the electrolytics, the small glass beads I collected because they were marked with polarity and had C followed by a number on the board by them ).

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by TantalumRecycle » January 15th, 2015, 12:28 pm

Tantapak Capacitors -- $30/Lb
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by necromancer » January 15th, 2015, 12:55 pm

TantalumRecycle wrote:Our company now purchases MLCC Capacitors as well.
all types ? magnetic & non magnetic ? pricing would also be good to ad.
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by Magagna » January 16th, 2015, 1:30 pm

This site is a wonderful. Great post this about tantalio capacitors. Here, in this forum I'm learning that the gold recovery isn't the only thing to recycle but there are different ways to fun ( because I like Disassembled things) and of course make money. Thanks to all for yours answers about tantalio capacitors.

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by Magagna » January 17th, 2015, 2:23 pm

Friends, can you control these please?
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by MarcoP » January 17th, 2015, 2:38 pm

Top line: last seems to be tantalum, the two yellow ones before the last are tantalum.
Bottom line: last two aren't tantalum but may have a gold wire inside.

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by Magagna » January 17th, 2015, 2:55 pm

MarcoP wrote:Top line: last seems to be tantalum, the two yellow ones before the last are tantalum.
Bottom line: last two aren't tantalum but may have a gold wire inside.
Thanks Marco, the last two I'm many seeing. What's the name?

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by Magagna » January 17th, 2015, 3:09 pm

I found the name here http://www.goldrefiningforum.com/Scrape ... c185965428: oscillators
But here it doesn't speaks about gold inside

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by MarcoP » January 17th, 2015, 3:29 pm

It doesn't even say about silver in switches and some relays...

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by Magagna » January 17th, 2015, 3:50 pm

Right Marco! Hahahahaha I started with Single container and now I find myself having many containers assigned To the various materials recovered

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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by necromancer » January 17th, 2015, 5:17 pm

Magagna wrote:Right Marco! Hahahahaha I started with Single container and now I find myself having many containers assigned To the various materials recovered
:?: you will find that needing a million of a item is not worth saving, imagine cracking open a million of one part for a 1/2 a gram of silver or gold.

try exploring each item you find & make a choice as to it's value one pound at a time, making a spreadsheet with the product numbers and a "yes or no" next to it so you will always know what you want to keep & what you don't.

as your list grows you can put results. (gold plated sata hard drive connectors = 0.2g of gold per pound) <-- not hard data, just an example

you will come across 100's & 1000's of different things. you can't keep them all stored in jars in the garage :roll:

find, choose & keep to recover or sell the best items, i understand that it's better to make 5 cents then nothing at all..... but at what price ??

if your getting $1.65 a pound for a motherboard, and taking 1/10 of a pound off that is worth $0.03 it is not worth your while.
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by Magagna » January 18th, 2015, 2:28 pm

Aren't there tantalio capacitors?
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Re: Tantalum Capacitor Scrap Purchasing -- International

Post by necromancer » January 18th, 2015, 2:31 pm

no they are not Tantalum.
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