New Low Profile Low ESL Multi-Anode "Mirror" Tantalum Capacitor

Traditional tantalum capacitors have been known for their excellent reliability, robustness and stable parameters. This is why conventional tantalum capacitors with counter MnO₂ electrode are still a popular type of capacitor used for long life and high reliability applications. One of the downsides of the MnO₂ electrode system is its higher ESR compared to the polymer type of tantalum capacitors. The multi-anode concept (i.e. use of more node elements within one capacitor body) significantly reduces ESR and is an ideal choice for most demanding applications such as servers and high power telecommunication boards. This paper describes a novel multi-anode configuration that has been developed to reduce the height of the components, reduce manufacturing costs and self inductance ESL. The low ESL extend the working frequency range up to the common DC/DC switching frequency 250 - 500kHz (D case)