Tantalum capacitors - Who buys them?

I finally found some of these mysterious tantalum capacitors. Now that I have them, it's obvious how they are different from the regular ceramic ones that I see on circuit boards.



So, I'm clipping them off these mid-grade boards and putting them aside. The few posts on here that talk about them mention them going for $50+ per pound. The rest of the posts mentioning tantalum talk about where to find them, what they look like, etc.

So - who buys these things? Is anyone really selling them, or is anyone even saving them?

Could you put up a pic by chance?

I would be very interested in learning how to identify these caps. I've looked around a bit and can't find any solid info on identification. Anyone have any pointers?

Waredu, What type of board those come off of..etc???? Thanks.

Originally Posted by NMatheson

I would be very interested in learning how to identify these caps. I've looked around a bit and can't find any solid info on identification. Anyone have any pointers?

Hi

It is very easy to learn about their codes and types. As you look at above Pic. the capacitor has 3 numbers on it. All you need is to know what those codes represent.

Normally codes are 3 digit's but represented in 2 digits as well : If code is 2 digit then it is directly represented in Pico Farad.

47 = 47 pf

If code is 3 digit then first two digit give value and last one gives multiplier as :

104 = 10 X 0000 (4 zero's) pf = 10,0000 pf = 0.1 uF

On some capacitors a Letter is also printed ; which shows tolerances of that capacitor : as

D = +/- 0.5 pF
F = +/- 1%
G = +/- 2%
H = +/- 3%
J = +/- 5%
K = +/- 10%
M = +/- 20%
P = +100% ,-0%
Z = +80%, -20%

You can search out internet for more information on these !

Regards

These came out of vending machines.

I quit clipping when I couldn't find anyone who bought them. I've still got the boards though.

Right now, probably just about a pound or so. Apparently one of the bigger vending machine distributors in the area is refurbing all their machines - I got these boards from one of the guys doing the work. Said he would try to get more, but doesn't know if he will be able to.

PM me with your prices if you don't mind.

CLR, what is the minimum weight requirement for you to purchase? Thanks.....

Originally Posted by GeorgeB

What kind of boards would these come on?

Any.

Hey u still buy Tantalum let me know and how much is it still 120$?

Is there an identifying mark, or do they all look like the pic? How do I identify these?