KEMET’s Ultra-Stable X8R dielectric features a 150°C maximum operating temperature, offering the latest in high temperature dielectric technology and reliability for extreme temperature applications. It offers the same temperature capability as conventional X8R, but without the capacitance loss due to applied DC voltage. Ultra-Stable X8R exhibits no change in capacitance with respect to voltage and boasts a minimal change in capacitance with reference to ambient temperature. It is a suitable replacement for higher capacitance and larger footprint devices that fail to offer capacitance stability. Capacitance change with respect to temperature is limited to ±15% from -55°C to +150°C. These devices are available in both Commercial and automotive (AECQ200) grades in case sizes ranging from EIA 0402 up to EIA 1812. Capacitance offerings are available up to 0.22uF with voltage ratings up to 100V. For circuit designers, it is important to note that KEMET’s “Ultra-stable X8R” provides significantly enhanced performance over other industry X8R offerings. In the following graphs, we will highlight those differences.