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Description
Polypropylene film capacitors have better electrical properties than polyester film capacitors.
The main features of polypropylene film capacitors are as follows:
· Very low loss factor over a wide frequency range
· Excellent insulation resistance
· Excellent dielectric strength
· Good moisture resistance
· Excellent stability in terms of operating temperature and frequency
· Excellent long-term stability
· Excellent self-healing properties
Polypropylene film capacitors are generally used in high frequency alternating current and pulse applications. They are also used as intermediate circuit capacitors, in switching power supply units (SMPS), electronic ballasts and Snubber applications, frequency differentiation and filter circuits, as well as in energy storage and sampling and holding applications.
Polypropylene film is widely used for power capacitors and offers high performance, efficiency and reliability in a wide range of applications. Typical applications for power capacitors range from industrial drives and eco-current systems (wind, solar, etc.) to uninterruptible power supplies (UPS) and lasers in medical technology.