A new series of high-temperature MLCCs rated for an industry-leading 250C have been introduced by AVX. Designed to accommodate the rapidly emerging defense and commercial market demands for capacitors capable of high-reliability, long lifetime performance at high operating temperatures.
The new AT Series capacitors exhibits high current handling capabilities, high volumetric efficiency, high insulation resistanceThe ratio of the applied Voltage to the total current between two electrodes in contact with a specific insulator. A measure of the resistance to a DC current flow through the capacitor under steady state conditions. Values for film and ceramic capacitorsThe main differences between ceramic dielectricThe insulating material between the plates of the capacitor. The material is chosen for its ability to permit electrostatic attraction and repulsion to take place across it. The material will have the property that energy required to establish an electric field is recoverable in whole or in part, as electric energy. In other words, a good dielectric material is a poor conductor of electricity while being an effective supporter of electrostatic fields. types are the temperature coefficient of capacitanceThat property of a system of conductors and dielectrics which permits the storage of electricity when potential difference exists between the conductors. Its value is expressed as the ratio of a quantity of electricity to a potential difference. A capacitance value is always positive., and the dielectricThe insulating material between the plates of the capacitor. The material is chosen for its ability to permit electrostatic attraction and repulsion to take place across it. The material will have the property that energy required to establish an electric field is recoverable in whole or in part, as electric energy. In other words, a good dielectric material is a poor conductor of electricity while being an effective supporter of electrostatic fields. loss.Ceramic capacitors tend to have low inductance because of their small size. are usually expressed in megohm-microfarads for a given design and dielectricThe insulating material between the plates of the capacitor. The material is chosen for its ability to permit electrostatic attraction and repulsion to take place across it. The material will have the property that energy required to establish an electric field is recoverable in whole or in part, as electric energy. In other words, a good dielectric material is a poor conductor of electricity while being an effective supporter of electrostatic fields.. The actual resistance of the capacitor is obtained by dividing the megohm-microfarads by the capacitanceThat property of a system of conductors and dielectrics which permits the storage of electricity when potential difference exists between the conductors. Its value is expressed as the ratio of a quantity of electricity to a potential difference. A capacitance value is always positive.., and extremely low ESRLow Equivalent Series ResistanceLow Equivalent Series ResistanceLow Equivalent Series Resistance and ESLLow equivalent series inductance..
Available in a wide range of sizes, values, and voltages all rated at 250C, in addition to two dielectrics and multiple termination options, they provide exceptional performance in the most demanding automotive, avionics, aerospace, and energy applications.
Specifically, AT Series MLCCs are ideal for use as filters in the power electronics, switch-mode power supplies, and DC-DC converters designed into a broad range of automotive applications, including: under hood, hybrid electric vehicle, engine control, sensor, and timing circuit applications; avionics and aerospace applications, including: transducer, engine control, spacecraft, flap and brake control, sensor, and timing circuit applications; and energy applications, including: down-hole oil exploration, logging while drilling, geophysical probe, seismic, geothermal, wind, solar, sensor, and timing circuit applications.
"Present military specifications and a majority of commercial applications currently require a maximum operating temperature of 125C. However, the market for high temperature electronics is expanding rapidly and demands capacitors that are capable of reliable, long-term operation at temperatures well beyond 125C," said Stan Cygan, senior applications engineer, AVX. "We developed the new AT Series MLCCs in direct response to these market demands and plan to continue expanding the already extensive range of size, value, and voltage options to provide the automotive, aerospace, and energy industries with a comprehensive range of high-reliability, high-temperature solutions."
