Tantalum capacitor scrap - Page 12

Originally Posted by ScrapStar

Hi, would anyone more experienced than me be kind enough to let me know if any of these pass as tantalum capacitors and what type they are? Thanks for any info,,,[IMG]IMG_20150826_194505[/IMG]

Hello -- Unfortunately none of these are Tantalum Capacitors - They are all Electrolytic Capacitors

Originally Posted by ScrapStar

Alright, thanks for your response anyway, I thought I was gonna get RICH lol! You just killed all my hopes I feel so heartbroken now. Besides the SMD type everything else seems to be a little difficult to identify.

Sorry i know how you feel -

https://www.facebook.com/tantalumscr...=page_internal --

Please take a look at our Facebook page to see a never ending amount of pictures of different Tantalum Capacitor Scrap for more detailed information.

ScrapStar - Just to help you as well as other members of SMF. Just as TantaluRecycling stated none are Tantalum capacitors, all are electrolytic capacitors. To add a little to that, all are aluminum axial electrolytic capacitors, perhaps the most common or easiest to distinguish of all the many types of capacitors. When looking for axial tantalum capacitors, start with green/green circuit boards. Almost all of the ones I have found, come from boards that are green on both sides. I have found them on high end thermostat boards made by Honeywell, (5 board 1 capacitor each), those boards were tan/green. Use a magnet on the axial capacitors you suspect or question "is it Tantalum?". You don't even need to take the time to remove them from the board, use a small magnet, place it on the anode side of capacitor (+ side). If it's Tantalum there will be a "strong magnetic pull". You can also just use a good pair of dykes or wire cutters on the axial metal can type capacitors. Try to crush the can portion of the capacitor, if it easily causes a dent in the capacitor it's a aluminum electrolytic capacitor. Be careful when doing this you don't want to puncture any can type capacitors, some can have a fluid "electrolyte" that is highly corrosive, harmful to the eyes and can cause skin irritations. Very hard to dent a metal Tantalum type capacitor and very easy to dent a aluminum one. Do NOT OPEN ANY TANTALUM METAL CAPACITORS, unless you take all precautions and know what to do with Sulfuric Acid! A lot of the metal Tantalum capacitors use sulfuric acid based electrolytes! On the "+" sign's a lot of aluminum capacitors will have them identifying the anode side of the capacitor. You need to then look at the circuit board, almost always only a "+" sign identify's A tantalum capacitor if the circuit board is marked. Make sure to check both sides of the board, most of the time it will be on same side of capacitor, I have seen them with only back side marked and even no marking at all. Honestly I find the metal can type of Tantalum capacitors the easiest to identify, it just takes practice. Good Hunting

Originally Posted by ScrapStar

@ Tantalum Recycling - Thanks for the response and facebook link I could learn a lot from that.
@ BIGBURTCHINO - Thanks for all the tips, its still confusing but that made it much easier, the plus + sign makes it even more confusing since at first I thought that only tantalum capacitors should have that sign. I don't know if its worth the time pulling those from the board but I am a lot more into it for the learning aspect. I thought it was only gold, palladium, silver copper etc. they want on the boards I did not know about tantalum until I crossed this forum. The SMD types are easy enough to identify but the silver cased and aluminum and axial etc. is just WAAAAY to confusing to differentiate at least for the moment lol.

The Material does not always have a plus + sign on the capacitors as the plus sign sometimes wears off, Just be careful when pulling.
The best way is just to send a picture and we will certify if it is Tantalum or not.

To everyone visiting Orlando for the #ESCRAP2015 Conference --- Please visit us at booth 807

SStar, Another thing to look for is on the + end, look for the different wire "welded" on it.

Sorry about that. I didn't think the only way that I saw them was because I was logged into the account that hosted the pictures. Let's try again...


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#3

#4-No idea what these are.

Originally Posted by ScrappyMe

Sorry about that. I didn't think the only way that I saw them was because I was logged into the account that hosted the pictures. Let's try again...


#1


#2


#3

#4-No idea what these are.

I apologize but none of these boards have Tantalum Capacitors

Originally Posted by TantalumRecycling

I apologize but none of these boards have Tantalum Capacitors

Are the capacitors with rounded edges in pictures 3 and 4 not tantalum?

Tantalum Recycling now accepts PCB Board cut outs with Tantalum Capacitors still attached to them.

We plan on switching to this system completely, to take away from the time consuming hassle of cutting the capacitors off of each board.

Originally Posted by pcbhawk

The picture in my post is from scrappyme's pictures above...i just downloaded and blew it up after reading Tantalum Recycler's response saying there were no Ta Caps on the boards he posted.

Like you, I'm familiar with a TA Cap made by Kemet that strongly favors the cap shown.

Yes it turns out that they are Tantalum Capacitors, But I suggest not to go after them as this type of capacitor was produced a very long time ago and there are other capacitors that look the same and would allow a person to get mixed up with this particular type.