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

The KEMET 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 the low ESR of multilayer ceramic, the high capacitance of aluminum electrolytic and the volumetric efficiency of tantalum into a single surface mount package. Unlike liquid electrolyte-based capacitors, KO-CAP has a very long operational life and high ripple current capabilities. The T52x/T530 provides the widest range of voltages, capacitance and case size options in the KO-CAP family and is suitable for general purpose DC applications for up to 48 volt DC voltage rails.

ESR values down to 5 mOhms
Stable capacitance across temperature and voltage
No aging effects
High ripple handling
Volumetrically efficient
High frequency capacitance retention
100% accelerated steady state aging
100% surge current tested
Halogen-free epoxy