T521 High Voltage series polymer electrolytic organic capacitor (KO-CAP®) is a solid electrolytic capacitor with a conductive polymer cathode capable of delivering very low ESR and improved capacitance retention at high frequencies. KO-CAP combines low ESR of multilayer ceramic, the high capacitance of aluminium electrolytic and volumetric efficiency of tantalum into a single surface mount package. It provides widest range of voltages, capacitance and case size options in KO-CAP family and is suitable for general purpose DC applications for up to 48VDC voltage rails. Applications include DC/DC converters, audio/sound circuits (mobile phone, base stations, smart phones, MP3 players), power supply inputs, portable electronics (notebook PCs, displays, SSDs, HDDs and USBs, digital cameras, GPS navigation systems, Wi-Fi modules), telecommunications, consumer electronics (analytical and test equipment, high speed servers), high voltage applications such as 12V to 48V power input rails.