The decrease in capacitance is while the 5V DC is applied. I can measure the capacitance at 60uF with an applied DC voltage. When I remove the 5V supply (DC Bias = 0V), the measured capacitance goes up to 80uF, which is just barely above the lower limit for the 100uF cap (+/-20%).
The...
I would like to understand why my 100uF 6.3V X5R dielectric ceramic capacitor decreases to ~60uF under a 5V applied DC bias. Can anyone explain the physical phenomenon?