Greenville, S.C. − Kemet Corp. has expanded its portfolio of surface-mount, high-voltage multilayer ceramic capacitors (MLCCs) with new high capacitance devices. The capacitor manufacturer has increased its offering by up to five times across most of its X7R dielectric platform. Capacitance values have been increased in EIA 1206 to EIA 2225 case sizes with rated voltages up to 3000 Vdc.
"Advances in Kemet's base-metal-electrode (BME) X7R high voltage technology have led to the development of some of the highest capacitance values available in the industry, including first-to-market," said Reggie Phillips, Kemet's specialty product manager, in a statement. "These new CV [capacitance/voltage] values will promote optimization and downsizing opportunities of existing designs and promote usage in applications requiring capacitance values previously unattainable in a high voltage ceramic capacitor."
Key features of the high-voltage MLCCs include low leakage current and low equivalent series resistance (ESR) at high frequencies. These devices are optionally available with Kemet's flexible termination technology, which mitigates flex cracks that can result in low insulation resistance (IR) or short circuit failures. A tin-lead termination finish is available for higher reliability applications.
Applications include power supply, LCD ﬂuorescent backlight ballasts, HID lighting, telecom equipment, industrial and medical equipment/control, LAN/WAN interface, analog and digital modems, and automotive lighting. Typical markets include alternative energy, industrial/lighting, medical, telecommunications, transportation, and defense and aerospace.
Kemet's high-voltage, surface-mount MLCCs are manufactured in ISO/TS 16949:2002 certified facilities and are available in both commercial and automotive grades. Automotive grade devices meet Automotive Electronics Council's AEC-Q200 qualification requirements.