What determines the capacitance of a film capacitor? |Focus on mid-to-high-end brand capacitor manufacturers

Film capacitors are capacitors with outstanding performance. They are widely used due to their non-polarity, high insulation resistance, excellent frequency characteristics, low dielectric loss, and good self-healing properties. They are very common in daily home appliances and speaker equipment. Many people are familiar with film capacitors, but do you know what determines the capacitance of film capacitors? We all know that film capacitors use plastic film as the dielectric. To calculate the capacity of film capacitors, we can apply the formula Cu003dεS/4πkd, where ε is the dielectric constant, and each material has its own dielectric constant, which is constant. S is the facing area of u200bu200bthe two plates of the capacitor, 4 is the Arabic numeral 4, π is 3.14, and d is the distance between the two plates of the capacitor. Therefore, we can conclude that the capacitance of the film capacitor is determined by the facing area of u200bu200bthe two plates of the capacitor and the distance between the two plates of the capacitor.

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