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| • High energy density capacitors for demanding defense and aerospace applications. Typical applications replace standard military capacitors, or augment batteries and power supplies where size, weight, reliability and quality are important factors of component selection. Hybrid Capacitors® Hybrid capacitors provide very high power and energy from devices much smaller and lighter than electrically equivalent tantalum wet, tantalum chip, or aluminum electrolytic capacitors. The Hybrid capacitor combines a high voltage electrolytic type anode bearing a Ta2O5 dielectric with a low voltage, high energy density electrochemical supercapacitor RuO2 cathode. Unlike other supercapacitors, use of the dielectric permits higher voltage operation of single cells. Thus, the Hybrid capacitor can operate at higher voltages without the need for series connected cells. The resistance (ESR) of single cell Hybrid capacitors is much lower compared to other supercapacitors of similar voltage rating. This leads to a very low time constant of 1ms, or less, making Hybrid capacitors well suited for high-rate applications. Hybrid capacitors are available with voltages up to 170V in a variety of standard configurations and capacitance ratings. Hybrid capacitors are also available in custom configurations and ratings for specific customer requirements. Capattery Supercapacitors® The advantage of the Capattery in defense electronics is its resistance to environmental conditions that destroy other supercapacitors. With its welded tantalum case and the unique Permselective™ valve, the Capattery can survive military environmental conditions for a lifetime of use. Capatterys are available in standard configurations under DSCC Dwg. No. 92001. Custom units and packaging are also available. Search for Evans Electronic products in eComp's Part Search and Stock Search or use our Quote Request Form.
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