Polypropylene Capacitors Audio

Working Principle of Polypropylene Capacitors Audio

The working principle of a Polypropylene Capacitors Audio is based on the storage and release of electrical energy. A polypropylene film acts as the dielectric, or insulating material, between two metal electrodes, or plates. The electrodes are typically made of aluminum or zinc, and are deposited on opposite sides of the dielectric film. When an electric charge is applied to the electrodes, an electric field is created within the dielectric. The electrical energy is stored in this field, and can be released as needed.

Advantages of Polypropylene Capacitors Audio 

High stability: Polypropylene capacitors have a very stable capacitance over a wide range of temperatures and frequencies. This makes them ideal for use in high-quality audio systems, as they will not affect the overall frequency response of the system. 

Low loss: The dielectric loss of polypropylene capacitors is very low. This makes them suitable for use in high-frequency audio applications, as they will not introduce any significant loss or distortion to the audio signal.

High reliability: Polypropylene capacitors have a long service life and high reliability, making them an excellent choice for use in critical audio applications.

High temperature capability: Polypropylene capacitors can withstand high temperatures making them suitable for use in power amplifier and other applications where heat is generated.

High voltage rating: They can have high voltage ratings making them suitable for use in high voltage power amplifier circuit.

Applications of Polypropylene Capacitors Audio

Polypropylene capacitors are widely used in a variety of audio applications, including:

Loudspeakers: Polypropylene Capacitors Audio are used in loudspeakers to filter out unwanted high-frequency noise and improve the overall frequency response.

Amplifiers: Polypropylene capacitors are used in amplifiers to filter out unwanted noise and improve the overall signal-to-noise ratio.

Crossover circuits: Polypropylene capacitors are used in crossover circuits to divide the audio signal into different frequency bands, allowing for optimal reproduction of different audio frequencies.

Audio signal processing: They are also used in audio signal processing circuits, such as equalizers and tone controls, to improve the overall sound quality of the audio system.

Polypropylene Capacitors Audio Action

The films used in metallized film capacitors include polyethylene, polypropylene, polycarbonate, etc. In addition to winding types, there are also laminated types. This type of capacitor with metallized film has a so-called self-healing effect, that is, if a small part of the electrode is short-circuited due to the fragile electrical interface, the electrode metal around the short-circuit part will be caused by the capacitor at that time. The electrostatic energy or short-circuit current will cause a larger area of melting and evaporation to restore the insulation, so that the capacitor can restore the function of the capacitor again.

In recent years, in order to improve the sound quality of audio equipment, the parts and materials used have become more and more advanced, and price is not the most important factor to consider. Therefore, in recent years, the frequency and quantity of PP capacitors and PS capacitors used in audio equipment have also increased. high. We can often see a certain brand of equipment, claiming how many PP quality capacitors or PS quality capacitors of a certain brand are used, as an endorsement on the sound quality, the reason is here.

Specifications:

Dielectric: Polypropylene film

Electrodes: Vacuum evaporated metal

Coating: Out wrapped with Mylar tape and ends sealed with epoxy resin

Leads: Axial leads of tinned wire

Reference Standard: IEC 384-16; GB 10190-1988

Climatic Catalogue: 40/85/21

Capacitance Tolerance: J (±5%), K (±10%) and M (±20%) 

Dissipation factor (tangent of loss): ≤0.1％ (at 20℃ , 1KHz)

Voltage-proof: 1.6*UR Unit VDC (5s at 20℃ )

Insulation resistance:

C ≤0.33μF, IR ≥30,000mΩ, C>0.33μF, IR*C≥5000S (1 minute at 20 and RH≤65%)

Endurance:

1,000 hours with 125% of rated voltage at 85°C

After the test: ∆C/C ≤5%, ∆DF≤0.40%, IR ≥50% of the specified value. (20°C, 1kHz)

Over 24 years of experience manufacturing and marketing various capacitors

Spark International Electronic Co., Ltd. was established in 1995, there are two joint ventures under it. Specialized in research,
Two factories cover an area of around 17,000 square meters and are equipped with the most advanced production machines and testing instruments from Italy, Japan, Germany, and the Taiwan area. With a capital of US$3,000,000.00.Total employees 1290, total 35 production lines, current total monthly output has reached 250 million pieces, Total Annual Sales US$50,000,000.00.
Based on the business philosophy of Reliable Quality, Reasonable Price, Prompt Delivery, and Good Service, we established long-term business relationships with customers from all over the world. Products enter over 70 countries and regions such as Southeast Asia, West Asia, European, North America, South America, Australia, South Africa, etc.

Precautions during use

1. The voltage is too high, exceeding the rated voltage of the capacitor, resulting in the internal breakdown, which eventually leads to a decrease in the capacity of the film capacitor.
2, for high frequency. (high frequency, large dielectric loss, thermal breakdown), which will also lead to a reduction in the capacity of film capacitors.
3, the use of high ambient temperature. High humidity is one of the biggest factors affecting the life of film capacitors.