Performance of metal film capacitors with electricity | Focus on mid-to-high-end brand capacitor manufacturers

The current operation of the metal film capacitor is very regular. If the current of the metal film capacitor is abnormal, it must be dealt with in time. The following will tell you how to deal with the abnormal phenomenon of the current of the metal film capacitor.　　Metal film capacitors are manufactured and polarized in a method similar to that of aluminum electrolytic capacitors, but their storage time is not limited, and they can work for a long time without DC polarity. The instantaneous reverse voltage generally does not damage the capacitor, and aluminum electrolytic capacitors are different.　　In actual applications, there is not always a DC bias voltage. Non-polar tantalum capacitors can also be manufactured, but they are more expensive and may not be used after storage. If two identical tantalum capacitors are connected in series back to back as shown in the figure, a Philippine polar capacitor can be obtained. The total capacitance is half of each series capacitor, namely C/2. A metal film capacitor with good performance should have a larger swing at the moment when the power is turned on; the larger the capacity of the metal film capacitor, the greater the swing of the hands. After the swing, the hands can gradually return to zero. Bit. If the pointer of the multimeter does not swing at the moment the power is turned on, the capacitor is invalid or open; if the needle keeps indicating the power supply voltage and does not swing, it indicates that the capacitor has been short-circuited; if the needle swings normally, it does not return to zero. , Indicating that the capacitor has leakage phenomenon. For more information, please call the toll-free hotline 4006299138.

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