Aluminum electrolytic capacitor Aluminum electrolytic capacitor Aluminum electrolytic capacitors are polarized electrolytic capacitors whose anode electrode (+) is made of a pure aluminum foil with an etched surface. The aluminum forms a very thin insulating layer of aluminium oxide by anodization that acts as the dielectric of the capacitor. A non-solid electrolyte covers the rough surface of the oxide layer, serving in principle as the second electrode (cathode) (-) of the capacitor. A second aluminum foil called “cathode foil” contacts the electrolyte and serves as the electrical connection to the negative terminal of the capacitor. Aluminum electrolytic capacitors are divided into three subfamilies
SAL electrolytic capacitor loads have a much higher reliability with respect to tantalum electrolytic capacitors. In addition, the dielectric aluminum oxide in combination with the electrolyte manganese dioxide has a relatively high voltage resistance against wrong polarity. SAL electrolytic capacitors are used for filtering, smoothing coupling and decoupling applications in industrial, medical and automotive equipment. The axial style of SAL capacitors has military and high professional applications up to 200 °C. Compared to non-solid electrolytic capacitors, SAL capacitors Compared to polymer electrolytic capacitors, SAL capacitors The standardization for all electrical, electronic components and related technologies follows the rules given by the International Electrotechnical