Niobium oxide capacitors, also known as niobium capacitors, are electrolytic capacitors that use niobium oxide as the anode material. These capacitors offer advantages such as high volumetric efficiency, stable capacitance over a wide temperature range, and low equivalent series resistance (ESR). Niobium oxide capacitors are used in various electronic applications, including telecommunications, automotive electronics, and consumer electronics, where reliable and compact energy storage solutions are required.