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片式多层陶瓷电容器如何选型?
作者:红宝电容 来源:http://www.jnhongbao.com 日期:2020-08-17 09:33 浏览

  片式多层陶瓷电容器是由印好电极(内电极)的陶瓷介质膜片以错位的方式叠合起来,经过一次性高温烧结形成陶瓷芯片,再在芯片的两端封上金属层(外电极),从而形成一个类似独石的结构体,故也叫独石电容器。

  Chip multilayer ceramic capacitor is composed of ceramic dielectric membrane with printed electrodes (inner electrode) stacked in a staggered way. After one-time high-temperature sintering, a ceramic chip is formed, and then a metal layer (outer electrode) is sealed at both ends of the chip to form a structure similar to a monolith, so it is also called monolith capacitor.

  那么片式多层陶瓷电容器如何选型?选型要素根据什么一起跟随小编一起了解下吧。

  How to select the type of chip multilayer ceramic capacitor? According to what selection elements, follow the editor to understand it.

  购买商品的一般决策逻辑是:能不能用?好不好用?耐不耐用?价格优不优惠?其实这个逻辑也可以套用到片式多层陶瓷电容的选型过程中:

  The general decision logic of purchasing goods is: can it be used? Is it easy to use? Is it durable? Is the price good or not? In fact, this logic can also be applied to the selection process of chip multilayer ceramic capacitors

  首先片式多层陶瓷电容参数要满足电路要求

  Firstly, the parameters of chip multilayer ceramic capacitors should meet the circuit requirements

  其次就是参数与介质是否能让系统工作在最佳状态

  The second is whether the parameters and media can make the system work in the best state

  再次,片式多层陶瓷电容是否存在不良品,可靠性如何

  Thirdly, is there any defective product in the chip multilayer ceramic capacitor and how reliable is it

  最后,价格是否有优势,供应商配合是否及时。

  Finally, whether the price is advantageous and whether the supplier cooperates in time.

片式多层陶瓷电容器.jpg

  片式多层陶瓷电容选型要素

  Selection elements of chip multilayer ceramic capacitor

  (1)参数:电容值、容差、耐压、使用温度、尺寸

  Parameters: capacitance value, tolerance, withstand voltage, operating temperature, size

  (2)材质

  Material

  (3)直流偏置效应

  DC bias effect

  (4)失效

  Failure

  (5)价格与供货

  Price and supply

  不同介质性能决定了片式多层陶瓷电容不同的应用

  Different dielectric properties determine the different applications of chip multilayer ceramic capacitors

  (1)C0G电容器具有高温度补偿特性,适合作旁路电容和耦合电容

  C0g capacitor has high temperature compensation characteristic, which is suitable for bypass capacitor and coupling capacitor

  (2)X7R电容器是温度稳定型陶瓷电容器,适合要求不高的工业应用

  X7R capacitor is a temperature stable ceramic capacitor, which is suitable for industrial applications with low requirements

  (3)Z5U电容器特点是小尺寸和低成本,尤其适合应用于去耦电路

  Z5u capacitor features small size and low cost, especially suitable for decoupling circuit

  (4)Y5V电容器温度特性最差,但容量大,可取代低容铝电解电容

  Y5V capacitor has the worst temperature characteristic, but it has large capacity and can replace low capacity aluminum electrolytic capacitor

  片式多层陶瓷电容常见的有C0G(NP0)、X7R、Z5U、Y9V等不一样的物质规格型号,不一样的规格型号有不一样的特性和主要用途。

  Chip multilayer ceramic capacitors often have different material specifications such as c0g (np0), X7R, z5u, y9v, etc. different specifications and models have different characteristics and main uses.

  C0G、X7R、Z5U和Y9V的关键差别是他们的添充物质不一样。在相同体积下,由填充介质构成的电容器的容量不同,与之相伴的电容器的介电损耗、容量稳定性等也不同,因此在使用电容器的情况下,根据电容器在电路中的作用而选择不同的电容器。

  The key difference between c0g, X7R, z5u and y9v is that they have different filling materials. In the same volume, the capacity of the capacitor composed of filling medium is different, and the dielectric loss and capacity stability of the capacitor are also different. Therefore, in the case of using the capacitor, different capacitors should be selected according to the function of the capacitor in the circuit.

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