C 2.10   Ceramic Capacitors Class I Capacitors with Class 1 ceramic are manufactured with temperature coefficients between +100 and –1500 ppm/°C. In tables and diagrams we will confine ourselves to the type that is called NP0 or COG (0 ± 30 ppm/°C) and which is predominant over all remaining Class 1 variants. To the Class 1 ceramics we also count porcelain that above all...

C 2.9 INTRODUCTION to CERAMIC CAPACITORS Within the electrostatic capacitor family we can distinguish two groups: the organic film capacitors described on the foregoing pages and capacitors with inorganic dielectrics. Of these dielectrics we will start with the dominating ceramic materials. C 2.9.1  Construction The capacitors consist, as the name tells us, of some kind of ceramic. The manufacturing process starts with a finely...

source: KEMET Electronics Corporation; ESA SPCD 2018 Symposium EPCI e-symposium library article There is a trend to use the commercial (automotive) grade parts is space applications to reduce the cost of the end electronic device. In Tantalum (Ta) capacitors 50% or higher de-rating (reduced application voltage Vavs. rated voltage Vr) is the way the reliability issues with the commercial parts is addressed. In reality,...

source: Airbus Defense and Space ; ESA SPCD 2018 Symposium EPCI e-symposium library article Supercapacitor is a product which fills the gap between batteries and capacitors, featuring very high power density (up to 100kW/kg) with lower stored energy than that of batteries (up to 7 Wh/kg). This technology is already widely used in various industrial, automotive and aeronautic applications. Its fast charge and discharge...

source: AS&D, Inc. for NASA GSFC; ESA SPCD 2018 Symposium EPCI e-symposium library article  Contrary to MnO2 tantalum capacitors, transient processes in polymer tantalum capacitors after voltage application might result in anomalously high, ampere-level currents when a capacitor might appear as a short circuit for a time that is much greater than a transient time in MnO2 capacitors. In this work, conditions that cause...