Originally Posted by bigburtchino
Red - TantalumRecycling will need to tell you yea or nae on what is or isn't a tantalum capacitor. I do believe the three lead yellow epoxy resin dipped capacitors are indeed tantalum capacitors. They look to me to be Vishay-Sprague Solid Tantalum Capacitors, specifically 299D - Solid-Electrolyte TANTALEX®:Tripole®, triple lead. Resin-coated - conformal coating, miniature size, combined with high performance features. The anode lead is in the center while both outside leads are cathode leads. The three-lead design makes backwards insertion impossible (polarized, but you would have to work at making a bad connection), this is a time saving option, enabling assembly without having to visually determine polarity. This also helps prevent damage to circuit board and components that may result from incorrect installation.
KEMET also makes a three lead epoxy dipped tantalum capacitor T396, Here is a picture of the T396 KEMET Tantalum capacitor.
Vishay-Sprague marks there capacitors with a number 2 inside a circle and KEMET marks their capacitors with a K with a line above and below the K. The capacitor in the picture is a 100uF capacitor,max operating voltage of 10 volts and the second "K" is a tolerance indicator of ±10%.
Hard to see the other ones, how are they marked?
This indeed are Tantalum Capacitors --- Again a very small amount of these are produced annually. But, we will take this type of capacitor. If you would like please send us a sample of two of these capacitors and we will have them tested at our facility.
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