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Polystyrene film capacitors, sometimes known as "Styroflex Capacitors", were well known for many years as inexpensive film capacitors for general purpose applications, in which high capacitance stability, low dissipation factor and low leakage currents were needed. But because the film thickness could be not made thinner than 10 μm, and the ...
Capacitors for AC applications are primarily film capacitors, metallized paper capacitors, ceramic capacitors and bipolar electrolytic capacitors. The rated AC load for an AC capacitor is the maximum sinusoidal effective AC current (rms) which may be applied continuously to a capacitor within the specified temperature range.
The relation between both voltages and temperatures is given in the picture at right. Applying a higher voltage than specified may destroy electrolytic capacitors. Applying a lower voltage may have a positive influence on polymer electrolytic capacitors. For hybrid polymer Al-e-caps a lower applied voltage in some cases can extend the lifetime ...
Expanded polystyrene packaging A polystyrene yogurt container Bottom of a vacuum-formed cup; fine details such as the glass and fork food contact materials symbol and the resin identification code symbol are easily molded. Polystyrene (PS) / ˌ p ɒ l i ˈ s t aɪ r iː n / is a synthetic polymer made from monomers of the aromatic hydrocarbon ...
[clarification needed] Multiple layers of thin dielectric films are used where maximum practical dielectric strength is required, such as high voltage capacitors and pulse transformers. Since the dielectric strength of gases varies depending on the shape and configuration of the electrodes, [ 4 ] it is usually measured as a fraction of the ...
Ion-exchange resin beads. An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange, that is also known as an ionex. [1] It is an insoluble matrix (or support structure) normally in the form of small (0.25–1.43 mm radius) microbeads, usually white or yellowish, fabricated from an organic polymer substrate.
These can safely connected to low-impedance AC mains at rated AC voltage (here, 250 and 275V). "Ordinary" capacitors may not be connected "across the line" even if their DC ratings are well above AC voltage. 40/110/56 marking denotes climate conditions per IEC 60068–1 (-40˚C to +110˚C).
Styrene is an organic compound with the chemical formula C 6 H 5 CH=CH 2.Its structure consists of a vinyl group as substituent on benzene.Styrene is a colorless, oily liquid, although aged samples can appear yellowish.
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