KEMET T520 Series (KO-CAP) polymer tantalum capacitors offer the best features of multilayer ceramic (low ESR, high frequency capacitance retention), aluminium electrolytic (higher capacitance, benign failure mode), and proven solid tantalum technology (volumetric efficiency, surface mount capability, extremely long life).
The KEMET T520 Organic Capacitor (KO-CAP) is a tantalum capacitor with a Ta anode and Ta2 O5 dielectric. A conductive organic polymer replaces the traditionally used cathode plate of the capacitor. This results in very low ESR and improved capacitance retention at high frequency.

Extremely low ESR
Polymer cathode technology
High frequency capacitance retention
Non-ignition failure mode
Volumetric efficiency
Self-healing mechanism
Halogen Free Epoxy

ESR values down to 5 mΩ
Stable capacitance across temperature and voltage
No aging effects
High ripple handling
Volumetrically efficient
High frequency capacitance retention
100% accelerated steady state aging

Halogen-free epoxy
Applications
Typical applications include DC/DC converters, audio/sound circuits (mobile phone and base stations, smart phones, MP3 players), power supply inputs, portable electronics (notebook PCs, displays, SSDs, HDDsand USBs, digital cameras, GPS navigation systems, WiFi modules), telecommunications, consumer electronics (analytical and test equipment, high speed servers), high voltage applications such as 12 V to 48 V power input rails, densely populated circuits with space restrictions, micro processor decoupling, and high ripple current applications