☑ Polystyrene Capacitor Temperature Coefficient

Polystyrene capacitors are capacitors that have a dielectric made up of polystyrene. Normally their tolerance is 5 to 10 but high precision capacitors are also available with tolerances of 1 and 2.

Capacitor Characteristics Temperature Coefficient Tolerance

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With temperature coefficients as low as 30 40ppm special and typically less than 120ppm standard they have excellent linearity of temperature coefficient over the entire temperature range most equipment ever sees on this planet.

Polystyrene capacitor temperature coefficient. Polystyrene capacitors are used in coupling and storage applications due to a high isolation resistance. Polystyrene ps 330 pf. Working voltages for polystyrene capacitors are 30v to 630v.

The temperature coefficient of a capacitor is generally expressed linearly as parts per million per degree centigrade ppm o c or as a percent change over a particular range of temperatures. Some capacitors are non linear class 2 capacitors and increase their value as the temperature rises giving them a temperature coefficient that is expressed as a positive p. Ceramic capacitor temperature coefficient tc coding class i temperature compensation type ceramic tc tc tolerance ppmc ppmc symbol for tc 25c to 85c see 410 25c to 55c calculated np0 c0 30ppm 30 72 n33 s1 30ppm 30 79 n75 u1 30ppm 30 89 n150 p2 30ppm 30 105 n220 r2 30ppm 30 120.

They come only in low values usually 10pf to 47nf. Working voltages for these capacitors are 30v to 630v. The holy grail of film capacitors polystyrene has the most desirable electrical characteristics.

They have a high negative temperature coefficient of 125 parts per million per degree celsius. 5 40 c 85 c.