Requirements of different circuits for film capacitor tolerances

A capacitor is an electronic component that plays an important role in the circuit, and any one of its parameters can have an effect on the capacitor.Similarly, the tolerance of this parameter will have an impact on the capacitor, different circuits on the tolerance requirements, the following for you to analyze the different circuits on the film capacitor tolerance requirements.

Depending on the application, the tolerances of the film capacitors can be divided into general purpose and precision capacitor applications. General-purpose film capacitors for capacitor capacitance accuracy requirements are not high, the corresponding tolerance can be larger, 5%, 10% or even Earth 20% can be. For applications such as bypass, coupling or low-demand timing and general delay, a thin film capacitor with a tolerance of 10% can be selected, and a thin film capacitor with a tolerance of 5% can be chosen for slightly higher applications, and for applications such as bypass, coupling, and high-frequency rectification filtering that do not require tolerances, soil 20% film capacitors with tolerances.

For the use of precision capacitors such as resonant circuit resonant circuit, these high tolerance requirements of the circuit, usually 2% or even 1% of the tolerance requirements, this high-precision film capacitor dielectric material with temperature change is very small or basic does not change, such a circuit in addition to the exact capacitance value is also used variable inductance adjustment to compensate.