Tolerance requirements of different circuits for film capacitors

Capacitor is a kind of electronic component which plays an important role in the circuit. Any parameter of capacitor will affect the capacitor. Similarly, the tolerance of this parameter will also have an impact on the capacitor, different circuits have different tolerance requirements, the following is for everyone to analyze the different circuits on the film capacitor tolerance requirements.

According to different uses, the tolerance of film capacitors can be divided into general purpose and precision capacitors. Thin film capacitors for general use do not require high capacitance accuracy, the corresponding tolerance can be larger, 5%, 10% or even 20% of the soil can be. For applications such as bypass, coupling or low-required timing and general delay, thin-film capacitors with a tolerance of 10% can be selected; for applications with a slightly higher requirement, thin-film capacitors with a tolerance of 5% can be selected; for applications such as bypass, coupling, and high-frequency rectifier filtering, which do not require tolerance at all, soil 2 can be selected. 0% tolerance film capacitors.

For precision capacitors, such as oscillatory circuits and harmonic circuits, these circuits with high tolerance requirements usually require 2% or even 1% tolerance. The dielectric materials of such high-precision thin-film capacitors vary little or little with temperature. In addition to precise capacitance values, such circuits also use variable inductance regulation. To compensate.