High speed switch mode power supplies require extremely low equivalent series resistance (ESR) and equivalent series inductance (ESL) capacitors for input and output filtering. These requirements are beyond the practical limits of electrolytic capacitors, both aluminum and tantalums, but are readily met by stacking multilayer ceramic (MLCs) capacitors. KYOCERA AVX stacked ceramic capacitors are supplied with lead frames for either thru-hole or surface mount assembly. The lead frames act as stress relief for differences in coefficients of expansion between the large ceramic chip (10 ppm/°C) and the PC boards ,and are offered in both horizontally and vertically stacked configurations.
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