Why do energy-saving lamps use polyester capacitors?

With the development of technology, the application range of capacitors has gradually expanded. Some people ask why the energy-saving lamps use polyester capacitors instead of other capacitors. When the polyester capacitor in the energy-saving lamp is how to choose good or bad, let the editor solve it for you one by one.

The reason why the energy-saving lamp uses polyester capacitor is that the precision, loss angle, insulation resistance, temperature characteristics, reliability and adaptability of the environment of the polyester capacitor are superior to those of the electrolytic capacitor.

The method for detecting the quality of the polyester capacitor is: using the pointer type multimeter R×1K file, the resistance value in the forward and reverse directions is approximately open circuit, and the pointer is swung back to the large value after the micro swing. The larger the capacity, the larger the pointer swings. This capacitor is a good capacitor. Anything that cannot return to the maximum scale value indicates that the capacitor is leaking, and if the resistance is small or the resistance is zero, the polyester capacitor is broken or damaged.

It should be noted that this measurement, because of the low voltage of the multimeter, does not indicate the high voltage withstand capability of the polyester capacitor, and can only be qualitatively measured. The advantages of using different capacitors for different products are different. We must understand them before use.