What are the types of smd capacitor?

There are generally several common types of smd capacitor: NPO, X7R, Z5U, Y5V, etc., to distinguish their differences: Because of the 

different filling media, the subsequent performance and the like are different.

1. NPO capacitor

The medium composition of NPO is composed of some other rare oxides, rubidium, samarium and so on. Its applicable places are in tank circuit 

capacitors (oscillators, resonators), coupling capacitor (in high-frequency circuits) and so on.

　　The selectable capacity ranges of NPO capacitor are as follows:

　　Package DC=50V DC=100V

　　0805 0.5---1000pF 0.5---820pF

　　1206 0.5---1200pF 0.5---1800pF

　　1210 560---5600pF 560---2700pF

　　 2225 1000pF---0.033μF 1000pF---0.018μF

2.X7R capacitor

Capacitor capacity change is non-linear. It changes with temperature and also changes according to different voltage and frequency. The 

performance is about 5% in ten years. X7R capacitor capacity changes can be accepted and applied in general industry. Capacity can reach 

higher

The selectable capacity ranges of X7R capacitors are as follows:

　　Package DC=50V DC=100V

　　0805 330pF---0.056μF 330pF---0.012μF

　　1206 1000pF---0.15μF 1000pF---0.047μF

　　1210 1000pF---0.22μF 1000pF---0.1μF

　　2225 0.01μF---1μF 0.01μF---0.56μF

3.Z5U capacitor

　　Z5U capacitor are called "universal" ceramic monolithic capacitor. Its disadvantage is unstable capacity. The advantage lies in its small size, low equivalent series inductance and equivalent series resistance, and better frequency response, so it is widely used. Especially in the application of decoupling circuit.

The selectable capacity range of the Z5U capacitor is as follows:

　　Package DC=25V DC=50V

　　0805 0.01μF---0.12μF 0.01μF---0.1μF

　　1206 0.01μF---0.33μF 0.01μF---0.27μF

　　1210 0.01μF---0.68μF 0.01μF---0.47μF

　　2225 0.01μF---1μF 0.01μF---1μF

4. Y5V capacitor

　Y5V capacitor is a general-purpose capacitor that is limited by temperature change. It can reach (22% -82%) in a certain temperature range. In a smaller physical size, the high dielectric constant of 5V can be made to 4.7μF.

　　The available capacity range of Y5V capacitor is as follows:

　　Package DC=25V DC=50V

　　0805 0.01μF---0.39μF 0.01μF---0.1μF

　　1206 0.01μF---1μF 0.01μF---0.33μF

　　1210 0.1μF---1.5μF 0.01μF---0.47μF

　　2225 0.68μF---2.2μF 0.68μF---1.5μF