The allfilm capacitor has good insulation characteristics

and its ratio of output to weight is much better than capacitors using other dielectrics. However

for this reason

heat dissipation dimension is much smaller than other capacitors. Therefore

Its thermal stability may not be better than other capacitors. Through experimental research on a small size capacitor unit model

we have found the relation between the inner hottest point and the hottest point of the metal case. It may provide some references to the capacitor thermal stability test.