KPS-MCL Ceramic Stacked Capacitors

KEMET's KPS-MCL series ceramic stacked capacitors are well-suited for resonant circuit applications

KEMETs' low loss (KPS-MCL) high-temperature SMPS ceramic stacked capacitors combine a robust and proprietary C0G/NPO base metal electrode (BME) dielectric system with a durable lead-frame technology for high temperature and high power SMPS applications. These devices are specifically designed to withstand the demands of harsh industrial environments such as down-hole oil exploration and automotive/avionics engine compartment circuitry..

The KPS-MCL is constructed with large chip multilayer ceramic capacitors (MLCCs), vertically stacked and secured to a lead-frame termination system, using a high melting point (HMP) solder alloy. Vertically stacking the capacitors in lead frames allows for much lower ESR (low loss) and thermal resistance, which translates to very high ripple current capability. The lead-frame isolates the MLCCs from the printed circuit board (PCB) while establishing a parallel circuit configuration.

KEMET’s high-temperature C0G capacitors are temperature-compensating and are well-suited for resonant circuit applications, or for those where Q and stability of capacitance characteristics are required. They exhibit no change in capacitance with respect to time and voltage and boast a negligible change in capacitance with reference to ambient temperature. Capacitance change is limited to ±30 ppm/ºC from −55°C to +200°C. In addition, these capacitors exhibit high insulation resistance with low dissipation factor at elevated temperatures up to +200°C. They also exhibit low ESR at high frequencies and offer greater volumetric efficiency over competitive high-temperature BME ceramic capacitor devices.