Reduced Leakage Polymer (T522 Series)

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The KEMET Organic Capacitor (KO-CAP) is a capacitor with a Ta anode and Ta2O5 dielectric. A conductive organic polymer replaces the traditionally used MnO2 as the cathode plate of the capacitor. This results in very low ESR and improved capacitance retention at high frequency. The KO-CAP also exhibits a benign failure mode which eliminates the ignition failures that can occur in standard MnO2 tantalum types. KO-CAPs may also be operated at steady state voltages up to 90% of rated voltage for part types with rated voltages of ≤10. The T522 Reduced Leakage Polymer Tantalum Series is designed to meet the needs of leakage-sensitive applications such as battery supported circuits. The T522 Series offers the lowest leakage values available in polymer tantalum capacitors with upper leakage limits that are up to 70% lower than other polymer series. 


• ESR: 25mΩ to 40mΩ
• -55°C to 105°C operating temperature range
• Polymer cathode technology
• High frequency capacitance retention
• Non-ignition failure mode
• Capacitance: 150μF to 470μF
• Voltage: 6.3V
• 100% accelerated steady state aging
• 100% surge current tested
• Low profile designs
• Volumetric efficiency
• Self-healing mechanism
• EIA standard case sizes


•Battery-dependent applications◦Handheld consumer electronics
◦Global tracking systems
◦Energy harvesting
◦Wireless sensors