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解读:有机薄膜电容器的优点和自愈能力
作者:红宝电容 来源:http://www.jnhongbao.com 日期:2020-07-29 09:28 浏览

  薄膜电容器有多种不同种类及型号,根据使用场景的区别选择适合型号的电容。今天我们主要来了解下有机薄膜电容器。有机薄膜电容有哪些优点内容?

  There are many different types and models of thin-film capacitors. The suitable type of capacitors can be selected according to the different use scenarios. Today we are going to talk about organic film capacitors. What are the advantages of organic film capacitors?

  1.体积缩小可取代以往使用电解电容的场合,并且具有更高的耐电压能力;

  The volume reduction can replace the previous occasions where electrolytic capacitors are used, and has higher voltage resistance;

  2.不存在电解液泄露风险,具有更高的可靠性;

  There is no risk of electrolyte leakage, so it has higher reliability;

  3.在电路中遇到瞬时过压时,具有自愈特性,能够很好地保护电路安全,消除电路过压击穿短路风险;

  When the circuit encounters instantaneous overvoltage, it has self-healing characteristics, which can well protect the circuit safety and eliminate the risk of circuit over-voltage breakdown and short-circuit;

  4.采用无感卷绕技术,产品符合低电感特性,更能适应电源系统不断提升的工作频率;

  Adopting non inductive winding technology, the product meets the low inductance characteristics, and is more suitable for the rising working frequency of the power supply system;

  5.采用低损耗介质材料,产品具有低损耗特性,能够承受更大纹波电流,发热量较低;

  Using low loss dielectric material, the product has low loss characteristics, can withstand larger ripple current, and has lower heating capacity;

  6.无极性介质材料,能够承受反峰电压,可满足交、直流滤波电路使用等。

  Nonpolar dielectric material, able to withstand reverse peak voltage, can meet the use of AC and DC filter circuit.

有机薄膜电容器.jpg

  金属化有机薄膜电容器的自愈有两种不同的机理:一种是放电自愈;另一种是电化学自愈。前者发生在电压较高下,所以也简称为高压自愈;因为后者在电压很低的情况下也出现,所以常简称为低压自愈。

  The self-healing mechanism of metallized organic film capacitor has two different mechanisms: one is discharge self-healing; the other is electrochemical self-healing. The former occurs at a higher voltage, so it is also referred to as high voltage self-healing; because the latter also occurs in the case of very low voltage, it is often referred to as low-voltage self-healing.

  金属化有机薄膜电容器的最大特点是具有自愈能力,因此自愈所带来的好处是主要的,但是,它也有不利之处,其中最大的害处就是自愈时造成电流脉冲,给电路带来信号干扰,降低电路的重要性能——信噪比。所以对于一些要求特别高的电路,如高保真音响电路、高精度通信电路等,不能让有机薄膜电容器在工作时发生自愈。

  The biggest characteristic of metallized organic thin film capacitor is its self-healing ability, so the advantages brought by self-healing are main. However, it also has disadvantages. The biggest harm is the current pulse caused by self-healing, which brings signal interference to the circuit and reduces the important performance of the circuit signal-to-noise ratio. Therefore, for some circuits with high requirements, such as high fidelity audio circuit, high-precision communication circuit, the organic film capacitor can not be self-healing when working.

  自愈的另一害处,是使用电容器的容量逐渐减少。若电容量在工作时,自愈次数很多,就会导致其容量和绝缘电阻显著变小、损耗角大幅度上升,使电容器很快失效。

  Another disadvantage of self-healing is that the capacity of capacitors is gradually reduced. If there are many self-healing times when the electric capacity is working, its capacity and insulation resistance will be significantly reduced, and the loss angle will be greatly increased, which will make the capacitor fail quickly.

  总而言之,有机薄膜电容的应用还是利大于弊,企业在购买有机薄膜电容器的时候要根据电容器的使用环境、电路特征等综合因素选择适合的电容元器件。更多相关电容元器件型号及种类请移步至产品中心:http://www.jnhongbao.com/cn/product/

  In a word, the advantages and disadvantages of the application of organic thin film capacitors are greater than the disadvantages. When purchasing organic thin film capacitors, enterprises should choose the appropriate capacitor components according to the comprehensive factors such as the operating environment and circuit characteristics of the capacitors. For more models and types of capacitor components, please move to the product center.