Ceramic capacitors are widely used in electronic equipment at present, accounting for about 50% of the total number of capacitors used, but many people do not know enough about their characteristics. In order to meet the standardization and requirements of product use, the following is an overview of the characteristics and matters needing attention of ceramic capacitors.
Ceramic capacitors have the advantages of good heat resistance, excellent insulation performance, simple structure, and low price. However, the characteristics of different ceramic materials are very different, and they should be selected correctly according to the requirements of use. Ceramic capacitors are divided into high-frequency ceramic capacitors and low-frequency ceramic capacitors according to frequency characteristics; according to withstand voltage, there are high-voltage ceramic capacitors (above 1KV) and low-voltage ceramic capacitors (below 500V).
High Voltage Ceramic Capacitor Precautions
1 When the capacitor is damaged, the failure may cause a short circuit. In order to avoid dangerous situations such as electric shock, smoke, and fire when the short circuit occurs, please use components such as fuses in the circuit to set the automatic fail-safe function.
2. For capacitors working under high temperature and high pressure conditions, attention should be paid to selecting products with high insulation resistance to prevent capacitors from failing due to a vicious cycle caused by increased leakage.
3. In the process of handling and production, the capacitor packing box should avoid violent collision. A single capacitor dropped from a height of 0.5 meters or above may cause damage to the ceramic body of the capacitor or microcracks, and should not be used.
Ceramic capacitors are different from other capacitors in that ceramic capacitors exist in many temperature groups according to different materials, and their characteristics and capacitance ranges are very different. Due to the high pressure and temperature resistance requirements of ceramic capacitors, JYH HSU(JEC) recommends that you take samples for testing first. Our company can provide customers with sample testing for free, welcome to consult us.
Post time: Feb-06-2023