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Do you konw the mylar capacitors?

Mar 14, 2016


   Mylar capacitors have excellent mechanical properties, electrical properties and optical properties and therefore the mylar capacitors have a very wide range of applications, for example, photographic film, magnetic tape, video tape, microfilm, packaging film and capacitors. In addition to the negative,the rest mylar capacitors need to add anti adhesive agent.

   Feature editing

   The metallized polyester film, non inductive wound construction

   wide capacitance range, small size, light weight

   good self-healing effect, long service life

   The flame retardant epoxy powder coating

   Main use

   DC blocking, bypass - suitable for DC and VHF level signal and coupling

   The mylar capacitors are widely used in filter and low pulse circuits

   The mylar capacitors use a metal foil as electrode, and poly ethyl ester, polypropylene, polystyrene or polycarbonate plastic film, from the ends of the overlap, winding into a cylindrical structure of the capacitor. And the type of plastic film is called the poly (also known as Mylar capacitor), polypropylene capacitor (also known as PP capacitor), polystyrene capacitor (also known as PS capacitor) and poly carbonate capacitors.

Thin film capacitor has many excellent properties, so it is a kind of capacitor with excellent performance. Its main characteristics are as follows: polarity, high insulation resistance, excellent frequency characteristics (frequency response), and the medium loss is very small. Based on the above advantages, it is widely used in analog circuit. Especially in the signal connection part, must use the frequency characteristic is good, the medium loss extremely low capacitor,it can ensure the signal in the transmission, does not have the too big distortion situation to occur.
The structure of capacitor and the same medium, polyester or polystyrene etc.. Polyester film capacitor, high dielectric constant, small size, large capacity, good stability,it is suitable for bypass capacitors. Polystyrene film capacitor, low dielectric loss, high insulation resistance, but the temperature coefficient is large,it can be used for high frequency circuit.

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