Which Polish ceramic capacitor is the best to use

Are polymer capacitors good for high-frequency applications?

As touched on earlier, polymer capacitors are excellent for high-frequency applications in comparison to their liquid electrolyte counterparts. While not as good as a ceramic capacitor, they are very close and can offer high capacitance for a similar price and board footprint when compared to the ceramic capacitor option.

What is a ceramic capacitor?

Ceramic capacitors are one of the most popular and common types of capacitors. In the early days, ceramic capacitors had very low capacitance, but nowadays, this is not the case. Multilayer ceramic capacitors (MLCC) are used extensively in circuits; their capacitance rating can reach hundreds of microfarads (µF).

Are polymer capacitors better than ceramic capacitors?

This makes the polymer capacitors excellent for power supplies and audio applications. While a polymer capacitor is typically more expensive than other alternatives, it can offer cost savings over ceramic capacitors due to the reduction in capacitance at the voltage in ceramics - requiring fewer polymer capacitors to do the same job.

How much capacitance does a ceramic capacitor need?

The application above requires 250 μF of capacitance at the input and 450 μF of capacitance at the output. Once the degradation of the ceramic capacitor’s capacitance over-voltage, aging, and temperature is considered, we are required to derate the ceramic capacitor by around 70%.

What is the difference between an electrolytic capacitor and a ceramic capacitor?

The difference between an electrolytic capacitor and a ceramic capacitor is the latter offers higher performance at a lower cost. MLCCs have a ceramic dielectric body, which is a mixture of finely ground granules of para-electric or ferroelectric materials and other components to achieve the desired parameters.

Are ceramic capacitors polarized?

Unlike electrolytic capacitors that are polarized, ceramic capacitors are generally non-polarized. This means that they can be connected in any orientation within a circuit. This lack of polarity simplifies their integration and enhances their ease of use. Like other non-polarized capacitors, a ceramic capacitor uses the symbol shown in Figure 1.