Tantalum capacitor scrap - Page 3

Originally Posted by ozarksewaste

How common are these on tv boards? I see some on occasion that look like they could be...

Also, do you need all of the leads nicely pulled out of the board or is a quick clipper job off the board ok as long as the main body is in good shape?

The leads are definitely not as important as people make it out to be -- Even though it does not make a difference but we prefer that wires to be cut off as much as possible -- The wires are not Tantalum but either magnetic or nickel.

I'm having the hardest time telling the difference between these three types:
"Hermetic Capacitors - $24.25/Lb
Wet Tantalum Capacitors - $50/Lb
Ag/Ta Capacitors - $90/Lb"

I will attach pictures of three types of caps I found today, can you please help me identify type? There are two pics of each cap and I tried to get all the numbers on them. I am hoping I finally found one of the elusive silver ones!!

I think this is a hermetic tantalum cap:





I think this one is a wet tantalum cap??





I THINK this is a Ag/Ta Cap?? pretty please?!

Hello --

The top three pictures are Hermetic Capacitors -- The second set of pictures I actually believe are Aluminum Capacitors and not Tantalum at all, You would be able to figure the difference by the difference in weight of the hermetic and the second set.

The Third set is Ag/Tantalum Capacitors.

Originally Posted by ScrappinRed

I'm having the hardest time telling the difference between these three types:
"Hermetic Capacitors - $24.25/Lb
Wet Tantalum Capacitors - $50/Lb
Ag/Ta Capacitors - $90/Lb"

I will attach pictures of three types of caps I found today, can you please help me identify type? There are two pics of each cap and I tried to get all the numbers on them. I am hoping I finally found one of the elusive silver ones!!

I think this is a hermetic tantalum cap:





I think this one is a wet tantalum cap??





I THINK this is a Ag/Ta Cap?? pretty please?!

Thank you!! Is it the SHAPE, the crimps on each end, that lets you know the last set of pics is silver?

-And the second two pics are the same capacitor, just different numbers and it is quite heavy. With the one crimp I thought it might be a wet Tantalum cap instead of just a hermetic?

Hello - I have verified that the second picture is Ag/Ta as well. So the top is Axial Hermetic Capacitors and the bottom two types are Ag/Ta Capacitors.

Okay a few more questions about the difference between axial hermetic, wet, and silver.

-Plain hermetic will be shiny, and no crimps?
-Do the "end cap" colors matter? red, black, white, metallic?
-Will wet and silver always be crimped? Crimped once or twice?
-Are all "dull" crimped ones silver?
-I had thought the "dullness" came from the plastic wrap/case on some of them?

I'm not trying to be a pest, I really want to be able to sort these correctly and maximize my money since there is a large price difference between these categories. I also want to stop missing these little buggers on any future boards.

I have more photos of different similar types, would you prefer I load them in your thread with my questions or start a separate thread?

Thanks =)

Originally Posted by ScrappinRed

Okay a few more questions about the difference between axial hermetic, wet, and silver.

-Plain hermetic will be shiny, and no crimps?
-Do the "end cap" colors matter? red, black, white, metallic?
-Will wet and silver always be crimped? Crimped once or twice?
-Are all "dull" crimped ones silver?
-I had thought the "dullness" came from the plastic wrap/case on some of them?

I'm not trying to be a pest, I really want to be able to sort these correctly and maximize my money since there is a large price difference between these categories. I also want to stop missing these little buggers on any future boards.

I have more photos of different similar types, would you prefer I load them in your thread with my questions or start a separate thread?

Thanks =)

Plain Hermetic does not have to be shiny but it has no crimps - the outside material is Brass.

The end caps do not matter as it all depends on the age of the actual capacitor - When you will see a color opening on the top of the crimp it is almost always certainly Wet Capacitors.

There are Silvers that are not crimp but not many of them - They are usually crimped only once which is considered to be the top of the capacitor.

I am not totally sure what you mean by dull crimped ones - The Wets that are gun metal looking are Tantalum/Tantalum Wets and then there are also Copper outside wets but these were only produced for an extremely small period of time.

Please load the pictures it would make things easier to explain.

The capacitor in the last two pictures ABOVE was the first cap I found that appeared to have two crimps.

Here are some photos of other tantalum caps that I'm trying to sort. Please let me know if you need additional images, it is hard to get the dull/shine to show well...




...closer 1-5




...closer 5-7, and #9




...closer 8-10

[IMG][/IMG]

Originally Posted by ScrappinRed

The capacitor in the last two pictures ABOVE was the first cap I found that appeared to have two crimps.

Here are some photos of other tantalum caps that I'm trying to sort. Please let me know if you need additional images, it is hard to get the dull/shine to show well...




...closer 1-5




...closer 5-7, and #9




...closer 8-10

[IMG][/IMG]

Thank you very much for the detailed picture this helps much with explaining the differences in types of capacitors.

1, 4, 5, 9 & 10 are all Axial / Hermetic Tantalum Capacitors

2, 3, 6, 7, 8 are all Ag/Tantalum Capacitors

Mark

Thank you very much. Here is a DIFFERENT set of tantalum caps, many are similar to the first batch but appear to have different part numbers. Apologies for any repeats, but again I am trying to tell the different between the Wet and the Silver.

Originally Posted by ScrappinRed

Thank you very much. Here is a DIFFERENT set of tantalum caps, many are similar to the first batch but appear to have different part numbers. Apologies for any repeats, but again I am trying to tell the different between the Wet and the Silver.

Thank you for the pictures -- All of these capacitors are AXIAL / HERMETIC Capacitors

The reason they would have different part # would be so the parts dist. could tell the difference between 150mf and a 15mf. Can't be lumping them together. I just used the numbers as an example, also the caps. could have different voltages in addition to the microfarad rating.

Originally Posted by Mechanic688

The reason they would have different part # would be so the parts dist. could tell the difference between 150mf and a 15mf. Can't be lumping them together. I just used the numbers as an example, also the caps. could have different voltages in addition to the microfarad rating.

I just wish I could find a list somewhere that had part numbers next to silver, wet, or hermetic axial so I could sort them correctly! There is a HUGE difference in price...

Originally Posted by ScrappinRed

I just wish I could find a list somewhere that had part numbers next to silver, wet, or hermetic axial so I could sort them correctly! There is a HUGE difference in price...

Maybe that's something you could do. Even if you just use it for yourself. Put it in a spreadsheet with a simple search where you'd enter the number into your spreadsheet and it'll bring the number up for you and next to the number would be the type of TA cap it is. It'll make your TA search much easier in the long run. Time=money. Hope you get it figured out. Looks like you have a great start!


Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish.
John Quincy Adams

Hmm... ok now I am confused. You said in the first round of photos on the other page that the plain hermetic caps(I understood this to be your axial/hermetic $24.25 classification) would NOT have crimps, and yet all but one of these cap sets HAVE crimps and you classed them all as axial/hermetic. Can you please help me understand? Thank you

Originally Posted by ScrappinRed

Hmm... ok now I am confused. You said in the first round of photos on the other page that the plain hermetic caps(I understood this to be your axial/hermetic $24.25 classification) would NOT have crimps, and yet all but one of these cap sets HAVE crimps and you classed them all as axial/hermetic. Can you please help me understand? Thank you

Hello - These are not the same type of deep crimps as the Wet Tantalum Capacitors and the Ag/ Tantalum Capacitors, If you look closely there is no real indent the piece that you see on the Hermetics is just the magnetic attachment on it. Also - It has a different color then the Hermetic / Axial capacitors. The pictures of the Hermetic have a Brass shell on the outside.

yet all but one of these cap sets HAVE crimps and you classed them all as axial/hermetic. Can you please help me understand?

Axial just means that the leads are coming out each end , kind of like an axial on a car.
The ones where both legs come out the bottom are called radial.

Originally Posted by Mechanic688

Axial just means that the leads are coming out each end , kind of like an axial on a car.
The ones where both legs come out the bottom are called radial.

Thanks Mech I understand the leads, but it's the crimps! The actual crimps/crease in the caps. My confusion is that I understood the OP on the previous round of pics to be saying that axial/hermetic caps would NOT have these crimps/creases and thus any tantalum cap with this crimp/crease in the actual cap would have to be Wet or Silver. I am desperately trying to grasp the difference between the Hermetic Capacitors - $24.25/Lb, Wet Tantalum Capacitors - $50/Lb, and Ag/Ta Capacitors - $90/Lb so I can sort this batch appropriately and send them in to get paid

Originally Posted by ScrappinRed

Thanks Mech I understand the leads, but it's the crimps! The actual crimps/crease in the caps. My confusion is that I understood the OP on the previous round of pics to be saying that axial/hermetic caps would NOT have these crimps/creases and thus any tantalum cap with this crimp/crease in the actual cap would have to be Wet or Silver. I am desperately trying to grasp the difference between the Hermetic Capacitors - $24.25/Lb, Wet Tantalum Capacitors - $50/Lb, and Ag/Ta Capacitors - $90/Lb so I can sort this batch appropriately and send them in to get paid

I have attached a picture showing the difference between Hermetics and the Wets -- The Wet Tantalum Capacitors and Ag/ Tantalum Capacitors look exactly identical only a different color.

You will also be able to tell which one is Wet or Hermetic Tantalum Capacitors by the weight of the actual capacitors.