Advanced High Energy Capacitors

High-energy Density Capacitors

TRS high energy DC capacitors use antiferroelectric ceramics with a high switching field. This allows for greatly increased energy storage in pulsed power and transient voltage suppression applications.

high energy density capacitor picture

Benefits of Anti-ferroelectric Capacitors

  • Higher volumetric efficiency than linear/paraelectric and ferroelectric dielectrics
  • Low equivalent series resistance (ESR) and inductance (ESL)
  • Nonlinear antiferroelectric/ferroelectric phase change greatly increases energy storage

dielectric displacement-electric field behaviors

Dielectric displacement-electric field behaviors for various dielectrics. The shaded area indicates the amount of energy recoverable upon discharging.

Typical Commercial Uses

  • Pulsed power
  • Pulse forming networks
  • Capacitive discharge units
  • Transient voltage suppression
  • Detonators
  • Magnetization/demagnetization devices
  • Plasma generators
  • Flash lamps
  • Power electronics, etc.

Performance Characteristics

performance characteristics graphs

Stored energy density vs. applied voltage per active volume of multilayer capacitors (left) and capacitance change vs. applied voltage (right). Both are calculated from polarization curves.

High Energy Capacitor Specifications


spacer
Type
A
B
C
D
Zero Field Capacitance (nF)
 103
141
306
440
Breakdown Voltage (V)
1276
1102
783
760
Optimum Bias Voltage (V)
1044
858
658
252
Energy Density per Active Area (J/cc)
5.2
4.9
2.7
1.8
Energy Density per Total Volume (J/cc @ V)
3.1 (1015)
3.0 (870)
1.6 (638)
1.0 (348)

 

energy density vs. volume graph

Energy densities per total volume measured by discharging multilayer capacitors into 1 kohm resistive load.

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©2014 TRS Technologies, Inc. - The information presented on this site has been carefully checked for accuracy and is believed to be correct and current.
TRS assumes no responsibility for the correctness of this information, nor for damages consequent to its use.
All specifications, tolerances, and the like are subject to change without notice.