Ceramic capacitors have the advantages of good heat resistance, excellent insulation performance, simple structure, and low price, and are used in consumer electronics, computer and communication products, and industrial products.
Ceramic capacitors should be used in proper conditions. If the usage method is wrong, even the best quality ceramic capacitors may go wrong, and the working time of ceramic capacitors will be shortened.
So what should be paid attention to when using ceramic capacitors?
1. Make sure the ceramic capacitor case is intact.
Ceramic capacitors with damaged shells are prone to leakage. When the leakage current is too large, a large amount of heat will be emitted to increase the temperature. If the temperature rises to a certain extent, the circuit may be burned and cause a fire.
When using ceramic capacitors, the ceramic capacitors need to be checked first. If there are cracks or impurities on the ceramic capacitors, do not use the ceramic capacitors, and replace them with new ceramic capacitors with undamaged shells.
2. Working environment temperature
Normally, the working temperature range of ceramic capacitors is -25°C ~ +85°C, and the working environment temperature should be confirmed before using ceramic capacitors. If the working environment temperature is too low, it will have little effect on ceramic capacitors, but attention should be paid to avoid dew condensation on ceramic capacitors, which will reduce the working performance.
When the temperature is too high, the current surge is too large, the capacitance of the ceramic capacitor is reduced, the ceramic capacitor may be broken down and the circuit could be burned in severe cases. Change to a working environment with suitable temperature and ventilation, or add a radiator or electric fan when the ceramic capacitor is working to reduce the temperature to ensure the normal operation of the ceramic capacitor.
3. Working voltage
When using ceramic capacitors, it should be noted that the working voltage in the circuit cannot exceed the rated voltage of ceramic capacitors. Exceeding the rated voltage will easily lead to short-circuit failure of the ceramic capacitor, and the electronic product will not work normally. It is necessary to replace the ceramic capacitor with a rated voltage higher than the working voltage to ensure the normal operation of the circuit.
Pay attention to the above situations before using ceramic capacitors to reduce unnecessary costs. Select a reliable manufacturer when purchasing electronic components can avoid a lot of unnecessary trouble. JYH HSU(JEC) (or Dongguan Zhixu Electronics) not only has full models of ceramic capacitors with guaranteed quality, but also offers worry-free after-sales. JEC factories are ISO 9000 and ISO 14000 certified.
Post time: Nov-16-2022