This slide shows a comparison of the frequency characteristics of three types of aluminum capacitors using a 2V/330μF capacitor: Red line: polymer capacitor using multilayer structure (Murata’s ECAS series); Dash line: polymer capacitor using roll Al foil structure “Can” type; and Blue line: conventional electrolyte capacitor of “Can” type using liquid electrolyte. When comparing these three types of capacitors, the Murata ECAS series has the lowest ESR and impedance because of its multilayer structure.