Acquired Electronics360

Aerospace

High-Voltage Capacitors Are Good to 200° C

29 August 2016

KEMET Corporation has added EIA 2824, 3040, 3640 and 4540 case sizes to the HV-HT surface-mount multi-layer ceramic capacitor product line. These added case sizes allow for up to 150 nF of temperature-stable capacitance in 200° C environments.

HV-HT capacitors are specifically designed to withstand the demands of harsh industrial environments such as oil exploration and automotive and avionics engine compartment circuitry. In addition, with the growing trend of increased voltage, frequency and temperature in Wide Band Gap semiconductors (SiC, GaN) technology, KEMET’s HV-HT capacitors can help achieve maximum power density and efficiency.

Typical applications include critical timing, tuning, circuits requiring low loss, circuits with pulse, high current, switch mode power supplies, high-voltage coupling, DC blocking and voltage multiplier circuits in extreme environments, such as down-hole exploration, aerospace engine compartments and geophysical probes.

HV-HT capacitors were developed under KEMET’s 200° C high-reliability base metal electrode dielectric platform, which is 100% lead-free and RoHS and REACH compliant without exemptions. In addition to a low profile and aspect ratio, these devices exhibit low inductance and ESR with respect to application frequency, allowing for very high ripple current capability.



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