Tantalum - Polymer CapacitorsA capacitor is a passive electronic component that stores electrical charge. It consists of two conductive plates separated by a dielectric material, and can be used to store electrical energy or to filter or smooth electrical signals. Tantalum-polymer capacitors are a type of capacitor that uses a tantalum core and a polymer electrolyte as the dielectric material. They are known for their high capacitance, low ESR (equivalent series resistance), and small size, which makes them a popular choice for use in portable electronic devices and other applications where space is limited.