CAP 0.15ÂµF 500V 10% X7R 1808
KEMET ”ArcShield” high voltage surface mount capacitors in X7R Dielectric prevent surface arc-over discharge in high voltage applications. The phenomenon of surface arcing is caused by a high voltage gradient between the two termination surfaces or between one of the termination surfaces and the counter internal electrode structure within the ceramic body. It occurs most frequently at application voltages that meet or exceed 500V, in high humidity environments, and in chip sizes with minimal bandwidth separation (creepage distance). This phenomenon can either damage surrounding components or lead to a breakdown of the dielectric material, ultimately resulting in a short-circuit condition (catastrophic failure mode). “ArcShield” Technology (Patent Pending) features a robust and unique internal shield electrode system that prohibits arc- over while increasing available capacitance. This system offers unrivaled performance and reliability when compared to external surface coating technologies. Developed on the principle of a partial Faraday cage, these devices prevent the arc from forming and significantly reduce resulting failures. These high voltage devices are available with KEMET's Flexible termination technology which inhibits the transfer of board stress to the rigid ceramic body, therefore mitigating flex cracks which can result in low IR or short circuit failures. Although flexible termination technology does not eliminate the potential for mechanical damage that may propagate during extreme environmental and handling conditions, it does provide superior flex performance over standard termination systems. When combined with flexible termination technology these devices offer the ultimate level of protection against a low IR or short circuit condition. KEMET’s “ArcShield” high voltage surface mount MLCCs are manufactured in state of the art ISO/TS 16949:2002 certified facilities and are available in both commercial and automotive grades. Automotive grade devices meet the demanding Automotive Electronics Council's AEC-Q200 qualification requirements. These devices exhibit a predictable change in capacitance with respect to time and boast a minimal change in capacitance with reference to ambient temperature. Capacitance change is limited to ±15% from -55°C to +125°C.