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Capacitor Types and Application Fields

Film capacitors can be found in electronic circuits for various functions and applications:
  

  • Noise / RFI suppression

  • Snubbers

  • High pass and low pass filters

  • Signal coupling / Decoupling

  • Motor run / Start

  • Resonant circuits

  • Grading / balancing

  • Power conditioning / power factor correction (PFC)

  • Energy storage

  • Pulsed power

  • Voltage divider

The capacitance C is defined as the ratio of electric charge Q to the voltage U between the electrodes:

capacitance-formula.png

The quotient of one coulomb per volt [ Amp sec / Volt ] represents the unit farad [ F ]. 

For commercial capacitors the following subunits are used: 

The various types of capacitors are based on different dielectric materials and production methods. The capacitance ranges from picofarad to more than hundreds of farad. Voltage ratings can reach kilovolts.  

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The chart below illustrates the spectrum of capacitor types. The dark green area is best served by capacitors made with Steinerfilm products.

Steinerfilm capacitor types radar plot
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