The polyester capacitor is made out of two metal plates with the polyester film sandwiched between them or the insulator might be covered with a metalized film.
Polyester is the most widely utilised dielectric material in this capacitor, allowing the capacitor's construction to be simplified. These capacitors are quite inexpensive and have great self-healing properties.
The dielectric & construction of polyester, PET capacitors are used in different applications wherever sharp; spikes of quick rise time are there when they contain high dV/dt.
- This capacitor is used where maximum levels of peak current need to handle
- Used in different low-frequency pulsating & DC circuits
- Used for filtering wherever high levels of tolerance are not necessary.
- Used in the applications of coupling, decoupling & blocking of DC
- Used in power supplies wherever the levels of the extremely high capacitance of electrolytic capacitors are not required.
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