The temperature and frequency dependencies of electrical parameters for polypropylene film capacitors are very low. PP film capacitors have a linear, negative temperature coefficient of capacitance of ±2,5% within their temperature range. Therefore, these capacitors are suitable for applications in Class 1 frequency-determining circuits, filters and oscillator circuits. They are also useful for compensation of inductive coils in precision filter applications, and for high-frequency applications.
In addition, PP film capacitors have the lowest dielectric absorption, which makes them suitable for applications such as VCO timing capacitors, sample-and-hold applications, and audio circuits. They are available in very narrow capacitance tolerances, normally arround 1-2%.