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Precautions for purchasing axial film capacitors | Focus on mid-to-high-end brand capacitor manufacturers

by:Shenmao     2021-04-11
Axial film capacitors, as an excellent capacitor, are widely used in speakers, audio and other fields. Due to the widespread use of axial film capacitors, the purchase of capacitors is also very important. Let's talk about the precautions for the purchase of axial film capacitors. The purchase of axial film capacitors is related to the rated voltage and rated current of the capacitor. Pay attention to it when purchasing. 1. The rated voltage of the axial film capacitor. The so-called rated voltage refers to the peak value of the highest DC voltage or pulse voltage that can be continuously applied to the capacitor within the rated temperature range. Taking into account the reliability and derating use requirements of capacitors, it is usually required that the actual working voltage is less than 80% of the rated voltage. If the selection is wrong, the circuit may not work normally, so the rated voltage of the axial film capacitor should be clear when purchasing. 2. Rated current of the axial film capacitor When the axial film capacitor passes voltage again, the capacitor will lose heat and dissipate heat. When used under high frequency and high pulse conditions, it will cause the axial film capacitor to heat itself, and in severe cases, it will cause the axial film capacitor to burn and even cause a fire. Therefore, pay attention to the rated current of the capacitor when purchasing to ensure that the axial film capacitor can operate normally and safely for a long time. 3. Capacitance value of the axial film capacitor The capacitance of the axial film capacitor should be selected in accordance with the requirements of the circuit design, and the error of the capacitance value is within ±5%, so that the circuit can operate normally according to the design. For more details, please call the toll-free hotline: 4006299138. Of course, not all of the above are mentioned. Many companies also consider the price factor of axial film capacitors when purchasing. This requires consideration of the company's product positioning and market conditions, so I won't repeat them here.
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