According to the temperature characteristics, material, production process. MLCC can be divided into the following types: NP0, C0G, Y5V, Z5U, X7R, X5R, etc. NP0 and C0G have stable temperature characteristics, small capacity and high price. Y5V and Z5U have large temperature characteristics, large capacity and low price; X7R and X5R fall somewhere in between.

According to the SIZE of the material. It can be roughly divided into 3225, 3216, 2012, 1608, 1005, 0603, 0402, 0201; The larger the value, the wider and thicker the SIZE.

Chip multilayer ceramic capacitor (MLCC) materials widely used in portable products can be divided into two main categories according to the temperature characteristics: BME-based C0G products and LOW ESR material selection X7R(X5R) products.

The capacity of class C0G MLCC is mostly below 1000pF, and the main performance index of low power consumption is the tangent value of loss Angle tanδ(DF). The DF value range of the C0G product of the traditional noble metal electrode (NME) is (2.0 ~ 8.0)×10-4, while the DF value range of the technical innovative alkali metal electrode (BME) is (1.0 ~ 2.5)×10-4, which is about (31 ~ 50)% of the former. The low-power characteristics of these products are more significant in GSM, CDMA, cordless telephone, Bluetooth and GPS systems with T/R module circuits.

The capacity of X7R(X5R) type MLCC is mainly concentrated above 1000pF, and the performance index of low power consumption of this type of capacitor is the equivalent series resistance (ESR).

Selection element

- Parameters: capacitance value, tolerance, voltage resistance, service temperature, size

- Material

- DC bias effect

Properties of medium

-C0G capacitors with high temperature compensation are suitable for use as bypass capacitors and coupling capacitors

-X7R capacitors are temperature stabilized ceramic capacitors suitable for less demanding industrial applications

Z5U capacitors are characterized by their small size and low cost and are particularly suitable for use in decoupling circuits

-Y5V capacitors have the worst temperature characteristics, but large capacity, and can replace low volume aluminum electrolytic capacitors

MLCC commonly used C0G(NP0), X7R, Z5U, Y5V and other different medium specifications, different specifications have different characteristics and uses. The main difference between C0G, X7R, Z5U and Y5V is their filling medium. In the same volume due to different filling media composed of capacitor capacity is different, resulting in capacitor dielectric loss, capacity stability is different, so in the use of capacitors should be based on the capacitor in the circuit to choose different capacitors.