Consumers may not know that good graphics cards use expensive capacitors, such as polymer capacitors, which cost about $1 each, and a low-end graphics card which costs an average of more than 6 to 8, GeFor. E9600GT, Radeon HD385o do not work well to more than 15, the cost of these main capacitors alone will be more than 100 yuan, but now NVIDIA and ATI only a few public versions of polymer capacitors, ordinary manufacturers of many so-called non-public versions are replaced by ordinary aluminium electrolytic capacitors, a graphics card on all the main capacitors added up to less than 1 yuan. It's well known that there is only a price war left for graphics cards. Now the total profit of an ordinary RV63O graphics card from the factory to the final sale may be only 50 yuan. What does it mean to spend 100 yuan on capacitors? It is to make the price of this kind of video card soar, or to make the manufacturer unprofitable and have to reduce the quality of components. So that the classification of capacitors is no longer ambiguous when it comes to capacitors, we have probably seen a lot of them, and any electronic equipment has its own shape. At present, aluminum capacitor is the most commonly used in the field of household cards, because it is cheap, large capacity and good performance. At this point, you may be a little dizzy, usually we talk about the capacitance on the board is not directly said to be ordinary electrolytic capacitor and solid-state capacitor? Why does an aluminium capacitor come out here?

Here is a question about how to classify capacitors. Capacitance and other parts are different, because there are many different names of materials used, and according to the cathode and anode materials, there is a "staggered" relationship between them, which is the difficulty for people to understand capacitance.

The classification of "upright" capacitors is almost entirely aluminium electrolytic capacitors, which seems very complicated. In fact, as long as we grasp the context, it is still very simple. For example, we see in graphics cards, motherboards that "stand upright" capacitors are almost aluminum capacitors, and usually commonly known as solid-state capacitors and electrolytic capacitors are aluminum capacitors. Solid-state capacitors are called cathode materials, organic semiconductors and polymer (which are still aluminium capacitors according to anode materials). For example, from the point of view of the anode, we can call a certain kind of capacitor as the supporting capacitor. Of course, we can also call the anode and cathode together, and subdivide the supporting capacitor into the supporting manganese dioxide capacitor, the supporting polymer capacitor and so on.