Introduction of three conventional Fenghua Patch capacitance materials

Fenghua Patch CapacityConventional materials can be divided intoNPO(COG)、X7R(X5R)andY5VThree types.The main difference is that the medium it is filled is different.At the same volume, a capacitor composed of different filling media has different capacity.

Capacitor medium loss and capacity stability are also different.Therefore, when using the different functions of the capacitor in the circuit, you should choose different Fenghua patch capacitors.

1. Fenghua Patch CapacitorNPO(COG)

In terms of temperature compensation,NPO(COG)It is the most commonly used single -piece ceramic capacitor.Its filling medium is a variety of rare oxides such as 钐 and 钐.

COGThe capacitor is one of the most stable capacitors and the smallest medium loss.when-55~125At ℃, the capacity changes to0±30ppm/℃, the capacity is less than ± with the frequency of the frequency0.3ΔC。

NPOThe capacitor is ±0.05%The following drifting or lag is relatively greater than ±2%The above film capacitors can be ignored.Its typical relative service life changes less than ±0.1%。

With the different forms of packaging,NPOThe capacitance characteristics and megapunita characteristics of capacitors are also different. The size of large packaging has better frequency characteristics than small packaging size.

COGThe capacitor is suitable for the coupling capacitance in the oscillator, resonant slot circuit and high -frequency circuit.

Second, Fenghua Patch CapacitorX7R/X5R

X7R/X5RCapacitor is a ceramic capacitor at a stable temperature.exist-55℃125At ℃, the capacity of the capacitor changes to to15%Pay attention to the non -linearity of the capacity changes.

X7R/X5RThe capacity of the capacitor will have different changes in the case of different voltage and different frequencies, and its changes will change over time, about every10Year1%The change of changes10Contract5%The change.

X7R/X5RThe capacitors are mainly used to require low industrial applications. With acceptable voltage changes, capacity changes can also be used.Its main feature is that the power capacity under the same volume can be made greater.

Third, Fenghua Patch CapacityY5V

exist-30℃85Within ℃,Y5VCapacitor is a general capacitor with a certain temperature limit, and its capacity changes range from22%arrive82%No.

useY5VThe high -agency constant, which can be made in smaller physical sizes4.7μFCapacitor.

Y5VThe other specifications of the capacitor are as follows:

1.The working temperature range is-30℃-85℃

2.Temperature22%-82%

3.The most dielectric loss5%