A Series

PowerStor® A Series

Cooper Bussmannn PowerStor supercapacitors are unique, ultra-high capacitance devices utilizing electrochemical double layer capacitor (EDLC) construction combined with new, high performance materials. This combination of advanced technologies allows Cooper Bussmannn to offer a wide variety of capacitor solutions tailored to specific applications that range from a few micro-amps for several days to several amps for milliseconds.

Data Sheet # 4302

MSDS # 4436

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Conditions for Royalty Free Use of Cooper Bussmann
Supercapacitor Active Balance Design - US Patent 7,342,768

Catalog Number A0820-2R5474-R, A1020-2R5105-R, A1030-2R5155-R, A1635-2R5475-R
Dimensions See Data Sheet #4302
Applications • Pulse power • Hold-up power • DC/DC converters • Hybrid battery packs • Valve / solenoid actuation
Working Voltage 2.5V
Surge Voltage 3.0V
Nominal Capacitance Range 0.47 to 4.7F
Capacitance Tolerance -20% to +80% (20°C)
Operating Temperature Range -25°C to 70°C
Packaging Standard packaging: Bulk, 100 units per package Special packaging available upon request. Contact factory


  • Very low ESR
  • Low leakage current
  • Long cycle life
  • High useable capacity
  • Very high specific capacitance also available (B Series)