App note: Aluminum capacitors in power supplies

an_vishay_aluminum_capacitors_in_psu

An engineering solutions from Vishay on aluminum capacitors used in power supplies, PDF link here.

In general, aluminum capacitors are the most suitable capacitors for addressing requirements such as low and high frequency filtering and energy storage, which demand high capacitance values and power ratings. The devices offer high Cu/(unit cost) ratios, are small compared with other technologies, and are relatively insensitive to voltage spikes. Furthermore, they are available in a broad range of sizes.

This document has been written to provide an insight into the technology and characteristics of aluminum capacitors with respect to their use in power supplies. Reading this document will help the designer to interpret aluminum capacitor datasheets and to appreciate both the advantages and limitations of these products.
using this information and the calculation tools provided will help designers to make truly informed decisions when selecting an aluminum capacitor for their power supply application.

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