POLYPROPYLENE FILM CAPACITORS
Polypropylene film capacitors have superior electrical characteristics compared to polyester film capacitors.
The main features of Polypropylene film capacitors are as follows:
very low dissipation factor over a wide frequency range
excellent insulation resistance
excellent dielectric strength
good resistance to humidity
outstanding stability with regard to operating temperature and frequency
excellent long-term stability
outstanding self-healing properties
Polypropylene film capacitors are generally used in AC and pulse applications at high frequencies. They are also used as DC-Link capacitors, in switched mode power supplies (SMPS), electronic ballasts and snubber applications, frequency discrimination and filter circuits as well as in energy storage, and sample and hold applications.
POWER CAPACITORS
Polypropylene film is widely used for power capacitors, providing high performance, efficiency and reliability in a wide range of applications. Typical power capacitor applications range from industrial drives and green energy systems (wind, solar, etc.) to uninterruptible power supplies (UPS) and lasers for medical engineering.