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:
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.
Description:
These polypropylene film capacitors feature a self-healing metallised
polypropylene dielectric. Constructed with a self-extinguishing plastic cover and case, a polyurethanic resin is used to seal the capacitive element. Plastic case with studTermination via double insulated two core leadNon-inductive windingLow ...
Description:
Ducati 4.16.10/15 series are snap-in (quick connect) Polypropylene
film capacitors. They are an electric motor capacitor used to start and run. The case and cover feature a self-extinguishing plastic material, the capacitive element is sealed with polyurethane resin. These 4.16.10 ...
Description:
C87 Series Polypropylene metallised film with cylindrical aluminium
can type filled with resin; faston, plastic deck or cable terminals and overpressure safety device. Features and Benefits:High capacitance densitySelf-healing metal layerVDE, CQC and UL810 approvedRated frequency of 50 Hz and 60 ...
