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Capacitors - Polymer

Polymer capacitors feature a hight volumetric efficiency that allows smaller devices to have higher capacitance values. Vishay offers polymer capacitors in a variety of surface-mount case sizes for applications such as military, portable consumer, computer/ server, network infrastracture equipment, and many others.

Polymer capacitors are constructed with a highly conductive polymer as the cathode system. For the anode, tantanum is used together with tantalum oxide dielectric. This construction gives polymer capacitors all the advantages of traditional tantalum capacitors while reducing equivalent series resistance (ESR) and eliminating manganese dioxide, which is a source of catastrophic failure in tranditional tantalum capacitors.