This chart provides a comparison of capacitance change with bias voltage change between the PX type and MLCCs. A bias voltage of 0 to 25Vdc was applied to both 25V rated capacitors. The blue line indicates the PX type while the red line indicates the MLCC. As bias voltage increases, the MLCC’s capacitance tends to decrease linearly. A 50% capacitance drop is exhibited at a bias voltage of 20Vdc and 65% capacitance drop occurs at 25Vdc. Using an MLCC requires a considerable amount of overhead when examining output load requirements. The PX type is an easy-to-use part that has very little change in capacitance with a change in bias voltage.