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]
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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 CapacitorsQuote:
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.
Quote:
Originally Posted by ScrapStar
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
@ 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.
SStar, Another thing to look for is on the + end, look for the different wire "welded" on it.
The Material does not always have a plus + sign on the capacitors as the plus sign sometimes wears off, Just be careful when pulling.Quote:
Originally Posted by ScrapStar
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
Quote:
Originally Posted by Mechanic688
I apologize but i still cannot see the pictures - Can you please email the pictures at info@tantalumrecycling.com
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
https://lnjjtq.dm2304.livefilestore....480.jpg?psid=1
#2
https://lnkg5q.dm2304.livefilestore....461.jpg?psid=1
#3
https://lnlphw.dm2304.livefilestore....459.jpg?psid=1
#4-No idea what these are.
https://lnlwzg.dm2304.livefilestore....458.jpg?psid=1
https://onedrive.live.com/redir?resi...nt=photo%2cjpg
https://onedrive.live.com/redir?resi...nt=photo%2cjpg
https://onedrive.live.com/redir?resi...nt=photo%2cjpg
https://onedrive.live.com/redir?resi...nt=photo%2cjpg
That didn't work either so here are the links. Thanks for trying Mechanic!
I apologize but none of these boards have Tantalum CapacitorsQuote:
Originally Posted by ScrappyMe
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.
Are the capacitors with rounded edges in pictures 3 and 4 not tantalum?Attachment 2928Quote:
Originally Posted by TantalumRecycling
KEMET does make a poly coated tantalum capacitor of that style and your picture looks just like them. This is not my place to say though, the buyer always has the final say on what he buys!
I just got home from work, later tonight I'll see if I can give a data sheet reference with part numbers. Do you see any markings on those capacitors. If they are what I think they are, the makings should be on the top of the capacitor. In your picture, I see no markings, maybe it's just the picture. KEMET manufacturer's logo is a capitol "K" with a line above and below the K. They have a pretty good silk screen process, making there cap's fairly easy to ID. Try putting a small magnet on the cap, there should be a strong magnetic pull!