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Saifu's metallised polypropylene capacitors are high-performance, high-reliability electronic components widely used in various fields, including electronic communication, military industry, power industry, automotive, medical equipment, telecommunications, and consumer electronics.
Composition and Structure of Metallised Polypropylene Capacitors
Dielectric
Primarily composed of polypropylene film, which is characterized by high purity and high strength.
Electrodes
Instead of traditional aluminum foil, a very thin metal layer is formed on the surface of the film through a vacuum aluminum coating process. This metallization technology gives the capacitor higher voltage withstand capability and lower distortion.
Casing and Packaging
The casing is generally based on flame-retardant plastic, while the packaging material is selected for its high insulation, high-temperature resistance, and moisture-proof properties to ensure the stability and safety of the capacitor.
Characteristics and Advantages of Metallised Polypropylene Capacitors
High Voltage Resistance
These capacitors can withstand high voltages, making them suitable for use in high-voltage environments.
High Current Impact
They can resist large current impacts, ensuring circuit stability and reliability.
Low Loss
Excellent electrical performance, low internal temperature rise, small negative capacitance temperature coefficient, and low loss.
High Reliability
High self-healing performance, which allows the capacitor to maintain certain capacitance even if partially damaged by self-repairing.
Excellent Flame Retardancy
Both the casing and packaging materials have good flame retardancy, enhancing capacitor safety.
Good Stability
Capable of maintaining stable capacitance values in various environments, ensuring long-term stable operation of the circuit.
Application Fields of Metallised Polypropylene Capacitors
Power Electronics
Used in DC filtering, pulse coupling circuits, and phase compensation, to filter out interference and noise and ensure circuit stability and reliability.
Telecommunications
Used in communication equipment, such as antennas, transceivers, and high-frequency amplifiers, to provide efficient noise attenuation and signal filtering.
Medical Equipment
Used in high-frequency circuits, such as ECG machines, ultrasound devices, and X-ray machines, to provide stable capacitance and low loss, ensuring stable and accurate equipment performance.
Consumer Electronics
Widely used in digital cameras, mobile phones, and audiovisual equipment for power filtering, audio amplifiers, and signal processing circuits, enhancing user experience.
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