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The advantages and disadvantages of organic film capacitors' self-healing properties | Focus on mid-to-high-end brand capacitor manufacturers

by:Shenmao     2021-05-30
Anyone who knows capacitors knows that metallized organic film capacitors are characterized by their self-healing ability, which is unmatched by other capacitors. But everything has advantages and disadvantages. Among them, the significant harm of metallized organic film capacitors is that they cause current pulses during self-healing, which can cause signal interference to the circuit and reduce the important performance of the circuit-signal-to-noise ratio. Therefore, for some particularly demanding circuits, such as high-fidelity audio circuits, high-precision communication circuits, etc., organic film capacitors cannot be self-healing during operation. Another disadvantage of the self-healing properties of metallized organic film capacitors is the gradual decrease in the capacity of the capacitors used. If the capacitance is working, there are a lot of times of self-healing, it will cause its capacitance and insulation resistance to decrease significantly, the loss angle will increase greatly, and the capacitor will quickly fail.
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