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KEMET extends high voltage SMT multilayer ceramic capacitors

Posted: 18 Dec 2013     Print Version  Bookmark and Share

Keywords:KEMET  capacitor  automotive circuit  telecommunications 

KEMET Corp. has released the latest members of its high voltage surface mount multilayer ceramic capacitor portfolio. The part types boast industry-leading and first-to-market capacitance values that offer both high voltage capability and the stability and performance of C0G dielectric.

Capacitance offerings are now more than four times greater in devices with voltage ratings of 500-3,000VDC in EIA 0805-2225 case sizes. These increased CV values claim to offer optimization and downsizing opportunities, and are also an excellent replacement choice to other dielectric technologies that are not environmentally green or robust enough to withstand Pb-free surface mount processing.

High Voltage Surface Mount MLCCs in C0G dielectric feature a 125°C maximum operating temperature and are considered extremely stable. The C0G dielectric exhibits no change in capacitance with respect to time and voltage, and boasts a negligible change in capacitance with reference to ambient temperature. In compliance with RoHS legislation, KEMET is offering these products with 100 percent pure matte tin-plated terminations that allow for excellent solderability.

Automotive grade is available for applications requiring proven, reliable performance in harsh environments. Whether under-hood or in-cabin, these capacitors are intended for mission and safety critical automotive circuits, added the firm. Stricter testing protocols and inspection criteria have been established for automotive grade products in recognition of potentially harsh environmental conditions. KEMET Automotive Grade series capacitors meet the demanding Automotive Electronics Council's AEC-Q200 qualification requirements.

Target markets include alternative energy, computer/consumer, industrial/lighting, medical, telecommunications, transportation, defense and aerospace. Typical applications include switch mode power supplies (including input filters, resonators, tank circuits, snubber circuits and output filters), high voltage coupling and DC blocking, lighting ballasts, voltage multiplier circuits, DC/DC converters and coupling capacitors in Cuk converters.

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