Multi layer ceramic capacitors (MLCC) are one of the main passive surface mount components in electronic devices. It has excellent performance, a variety of different varieties, complete specifications, small size, and low price, and has the potential to replace aluminum electrolytic capacitors and tantalum electrolytic capacitors, and has been widely used.

Characteristics of Chip Multilayer Ceramic Capacitors：

1. Low Equivalent Series Resistance (ESR) and Impedance (Z)

2. High rated ripple current

3. Complete variety and specifications

4. Small size (withstand voltage 10V)

5. Non polarity

Advantages of Chip Multilayer Ceramic Capacitors：

  1. Due to the use of a multi-layered dielectric structure, the inductance is very low at high frequencies, resulting in a very low equivalent series resistance. Therefore, it can be used as an unparalleled filter in high-frequency and very high frequency circuits.

2. Non polarity, can be used in circuits with very high ripple or AC circuits.

3. It does not require significant derating when used in low impedance circuits.

4. It does not ignite or explode during breakdown, ensuring high safety.

Application Fields of Chip Multilayer Ceramic Capacitors：

 MLCC can be applied to various circuits, such as oscillation circuits, timing or delay circuits, coupling circuits, decoupling circuits, flat filter circuits, high-frequency noise suppression circuits, bypass circuits, etc. In recent years, it has also been widely used in DC/DC converter circuits and charge pump converter circuits. The operating frequency of these power circuits has been increased to 1-3MHz, and MLCC has excellent performance in this frequency range. It not only reduces energy loss, ripple voltage, and increases conversion frequency, but also has a small size and low cost (replacing tantalum electrolysis), which is of great significance for portable products.

The Development Direction of Chip Multilayer Ceramic Capacitors：

1.  In order to meet the needs of portable communication tools, chip multilayer capacitors are also developing towards low voltage, large capacity, ultra small and ultra-thin direction.

2.  In order to adapt to the development of certain electronic devices and equipment towards high power and high voltage resistance (mostly military communication equipment), high voltage, high current, high power, ultra-high Q value, low ESR type medium and high voltage chip capacitors are also an important development direction at present.

3. In order to meet the requirements of highly integrated circuits, multifunctional composite chip capacitors (LTCC) are becoming a hot research topic in technology.