Polypropylene film capacitors are a commoncapacitor used in electrical equipment. They are made of two pieces of thin plastic film, charged with electrodes as the dielectric. They can replace electrolytic capacitors in applications where the voltage is above 500V.
Types of polypropylene film capacitors
There are two main formats of polypropylene film capacitors. They're distinguished by the type of dielectric (insulating) material used. Firstly, film foil has two metal foil electrodes separated with two plastic films. Whereas metallised film has two very thin layers of metallisation, with plastic film as the dielectric. To get the desired electrical characteristics you need, such as stability or ability to withstand high voltage, you can choose different film materials for the dielectric layer.
What are polypropylene film capacitors used for?
Because of their high tolerance and voltage resistance, polypropylene film capacitors are used in a wide range of electric applications. These include switching power supplies, high voltage circuit applications, lighting ballast systems and circuits with high peak current levels.
Description:
Standard range of resin dipped radial MICA capacitors.
This series features excellent stability for timing and close tolerance applications. Features and Benefits:High temperatureNon-flammableHigh reliability Case Material: EpoxyRated Voltage 100 Vdc to 2500 Vdc.
Description:
Panasonic ECQUL film capacitors are constructed with non-combustible
resin and a flame-retardant plastic case in accordance with UL/CSA and European safety regulation class X2 or Y2/X2. Metallised film capacitorCompact sizeSafety function installedLimited to ac voltage (50 Hz or 60 Hz ...
Description:
The B32332 series of film capacitors from EPCOS
are constructed from metallised polypropylene film encapsulated in an aluminium can with plastic cap. Featuring a low dissipation factor and excellent self-healing properties, these film capacitors provide high insulation resistance and an ...
Description:
Kemet C878 Series are polypropylene capacitors metallised film
with cylindrical aluminium can type filled with liquid resin, plastic deck and overpressure safety device. Self-healing Rated frequency of 50 Hz and 60 Hz High capacitance density Safety device protection.
