The Tantalum division of AVX produces a wide range of solid electrolytic capacitors. Typically, the construction consists of a 1st electrode (anode), an insulating layer (dielectric) and a 2nd electrode (cathode) system.
The anode is manufactured either from pure tantalum or niobium oxide powder. Tantalum is an element extracted from ores found alongside tin and niobium deposits; the major sources of supply are located in Brazil, Africa and Australia.
Since December 1st, 2011, AVX has exclusively sourced the tantalum powder and wire used to manufacture its tantalum capacitors from smelters whose compliance with the Electronic Industry Code of Conduct (EICC) and the Global e-Sustainability Initiative (GeSI) Conflict-Free Smelter program has been verified. Niobium oxideis a ceramic material that can be refined to the same capacitor grade powder morphology as high purity tantalum powder, enabling capacitor anode manufacture by identical processes.
The dielectric layer is an oxide of the anodic material – tantalum or niobium pentoxide. These oxides can be formed in very thin layers, which, combined with their unique insulating properties, enables very high and stable capacitance values to be achieved.
The cathode is made from manganese dioxide, a semiconducting material (for standard tantalum and niobium oxide solid electrolytic capacitors) or conductive polymer (for polymer solid electrolytic capacitors).
AVX is world wide leading Tantalum capacitor manufacturer with widest range of capacitors from smallest to large case sizes, from consumer to automotive, medical and aerospace level applications. AVX has a leading market position in all world regions. Call us first - AVX your global partner
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