The function of SMD capacitor is explained in detail.

Chip capacitors are also called chip capacitors, and are mainly used for filtering, decoupling, coupling, oscillation, timing and other functions. .

Detailed introduction of the function of the chip capacitor:

Decoupling: Capacitors are called "decoupling" capacitors in decoupling circuits, and their role is natural decoupling, mainly to remove the invisible coupling noise and output signal noise in the amplifier.

Neutralization: The capacitor used in the neutralization circuit is called the neutralization capacitor. It is used in radio and television radio frequency wave amplifiers to eliminate self-excitation and oscillation.

Coupling: It is mainly to prevent the static operating points of the two-stage circuit from interacting, which is one of the important characteristics of the capacitor.

Energy storage function: In terms of energy storage, it is a battery. The battery in electronic products is actually a kind of capacitor, which plays a role of charging and discharging in the circuit.

Filtering function: Filtering is a more important part of the function of the capacitor, which is basically used in all circuits. The larger the capacitor, the easier it is to base the low frequency. The smaller the capacitor, the easier it is to base the high frequency. Therefore, a large-volume patch permittivity can be obtained at low frequencies, and a small-volume power capacitor can filter high frequencies.

Time constant: refers to the time required for over-reaction, mainly to control the size of the time constant, thereby controlling the charging and discharging time.

The above is the introduction and sharing of Pingshang Technology on the role of SMD capacitors. More product requirements can be inquired online!