A multilayer ceramic (MLC) capacitor is a monolithic block of ceramic containing two sets of offset, interleaved planar electrodes that extend to two opposite surfaces of the ceramic dielectric. This simple structure requires a considerable amount of sophistication, both in material and manufacture, to produce it in the quality and quantities needed in today’s electronic equipment.
A tantalum capacitor consists of a porous tantalum core surrounded by tantalum pentoxide. A tantalum wire is embedded into the core and extends axially from the part. The oxide layer is coated with manganese dioxide, graphite, a silver conductive layer and solder.