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  • The Capacitance value of MLCC gradually decreases over time, but it does not decrease in proportion to normal time but decreases in proportion to logarithm time as shown in the diagram.

     

     

    This is a part of the process in which mechanical stress is diminished within the MLCC molecular structure, forming a 90˚ dipole. In accordance, the degree of freedom of the dipole of dielectric within the MLCC gradually decreases, and even if the AC voltage for capacitance measurement is applied. the dipole gradually fails to move, resulting in a decrease in of capacitance value.

     

     

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