KEMET T521 Series – High Voltage Organic Polymer Capacitors

The T521 series offers a number of advantages over traditional MnO2 surface mount tantalum technology. The T521 series offers an ESR value that is half that of the lowest ESR MnO2 product for the same capacitance and targeted application voltage. The lower ESR translates into higher capacitance retentions at higher frequencies and a potential reduction in piece count. In addition, the T521 series offers a benign failure mode in the unlikely event of a short circuit failure. Also, the improvement in recommended voltage derating (as compared to MnO2) translates into a lower voltage rating need for the T521 series vs. an MnO2 tantalum chip capacitor which will often translate into a smaller case size or lower profile design.

The T521 series includes a new generation of material sets that demonstrate stable performance and reliability at elevated voltages.

T521 Highlights

• Unique advantages of the T521 series
          o Highest Voltage Polymer Ta in the industry (16V – 35V)
          o Up to 68uF Capacitance value
          o High Ripple Capability
          o Stable temperature characteristics
• Application needs:
          o High Volumetric Efficiency (Space restrictions)
          o 20V, 24V and 28V Voltage Inputs (20% Derating)
          o Low ESR
• Safety 
          o Benign failure mode makes it a desirable replacement for MnO2
• Industry Segments
          o Industrial/Medical
                     Industrial Power Supplies (to 28V)
                     Medical Diagnostics
          o Consumer
          o Military/Aerospace
                     Military Grade Power Supplies (to 28V)
                     Avionics Instrumentation (to 28V)
          o Telecom Infrastructure
          o Server/Router/Mainframe