SP-Cap Polymer Aluminum Capacitors Panasonic SP-Cap Polymer Organic Aluminum Capacitors are surface-mount aluminum electrolytic capacitors that use a conductive polymer as the electrolyte in layered aluminum construction. The SP-Cap product line from Panasonic consists of multiple series' that offer capacitance ranges of up to 560µF, voltage range from 2VDC to 35VDC, and the lowest ESR/impedance in the industry, achieving very good noise suppression and transient response. Unlike MLCCs, SP-Caps are free from temperature drift and DC/AC bias characteristics. In addition, voltage deration is not needed in SP-Caps, as in tantalum capacitors, due to its safety features. SP-Caps are the perfect solution for input and output capacitors for various DC/DC converters.