16SEPC100M+TSS Capacitors

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Aluminum - Polymer Capacitors represent a family of capacitors composed of a polymer electrolyte that serves as a separator between two aluminum electrodes. This construction allows for a lower ESR (Equivalent Series Resistance), smaller size and higher ripple current rating compared to standard aluminum electrolytic capacitors.

The product family name “16SEPC100M+TSS” comes from two different parameters that are used to indicate its capabilities. The “16” stands for its capacitance. The capacitance of the capacitor refers to how much energy it can store when a certain voltage is applied to it. In this particular case, the capacitance is 16 micro-farads, which is a relatively small value compared to standard aluminum electrolytic capacitors. The “SEPC” means that the capacitor is a surface-mounted electrolytic capacitor. This means that it is intended to be mounted to a printed circuit board or a similar surface. The “100M” stands for the rated voltage of the capacitor, meaning it can safely be used up to a voltage of 100 volts, although it may be used in lower voltage applications as well. Finally, the “TSS” stands for “Through-hole Shrouded”, which indicates its packaging. This particular type of capacitor has two metal pins that allow for easy soldering to a printed circuit board.

The application of aluminum-polymer capacitors range from low power, non-critical applications such as filtering of low-frequency noise, to more critical applications such as high-frequency bypassing, power supply decoupling, and energy storage. The reduced size and increased capacitance compared to standard aluminum electrolytic capacitors is especially useful in designing circuits for applications with limited space.

The working principle of aluminum-polymer capacitors can be explained by examining their construction. As mentioned, these capacitors are composed of two thin aluminum plates and a layer of polymer electrolyte which separates them. When a potential difference is applied across the plates, charge accumulates on the aluminum surfaces, developing an electric field which stores energy. This electric field will remain as long as the potential difference across the plates is not changed, allowing the capacitor to maintain its charge over time.

In conclusion, the 16SEPC100M+TSS type of aluminum - polymer capacitors are viable alternatives to standard aluminum electrolytic capacitors. They are typically used in low power applications where a low ESR, smaller size and higher ripple current ratings are desirable. The fact that they can be safely used up to a voltage of 100 volts and come in a through-hole shrouded package makes them particularly suitable for tight PCB layouts.

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