The Murata* WBSC / WTSC / WXSC Capacitors are dedicated to applications where reliability up to 250℃ (for WXSC) is the main parameter. They are suitable for DC decoupling. The unique technology of integrated passive devices in silicon developed by Murata can solve most of the problems encountered in demanding applications. These Si capacitors in ultra–deep trenches have been developed with a semiconductor process which enables the integration of high capacitance density from 6nF/mm² to 250nF/mm² (with a breakdown voltage of respectively 150V to 11V). Our SiCap technology features high reliability - up to 10times better than alternative capacitors technologies - thanks to a full control of the production process with high temperature curing (above 900℃) generating a highly pure oxide. This technology provides industry leading performances relative to the capacitor stability up to 250℃ for WXSC, up to 200℃ for WTSC and up to 150℃ for WBSC with a temperature coefficient equals to +60 ppm/K. In addition, intrinsic properties of the silicon show a low dielectric absorption and a low to zero piezo electric effect resulting in no memory effect. This Silicon based technology is ROHS compliant.
*Murata Integrated Passive Solutions