Plastic film how to determine the quality, how to select capacitors?

How to determine quality _ about how to choose film capacitance of the film

film was born in electrolytic capacitors' target='_blank'>capacitors with ceramics capacitors after birth is solved, the purpose of the electrolytic capacitor capacity big pressure is small, short service life, also solved the ceramics capacitor capacity is low, high voltage, capacitance is often the risk of breakdown, there are four plastic film on the classification, main market using the polyester film capacitor ( Call for CL capacitance) market With polypropylene capacitor ( Call for CBB capacitor) market 。

film capacitor is how to judge? That go from the properties of the thin film capacitor and material reference, thin film capacitor core reference points: (1) the stability, (2) the capacitance volume, (3) nonpolar, (4) insulation impedance, frequency of 5, 6. Dielectric loss, these are all important parameters selected film capacitor judgment, the better the performance of the more precise data.

know these parameters were selected, the following is not completely can choose the good film capacitors, on the market of fake and shoddy capacitance will still exist, so don't try so hard to choose, but require the other party to provide film capacitor samples, test on the product of the circuit board, after a week or month of testing, normal operation of all performance, to determine the film capacitor is good or bad, also can rest assured of choose this film capacitors, if you have chosen film capacitor needs, also can click on the lower right to contact customer service, we will be online for you to answer your doubts

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