Chip capacitor, circuit assembly, and electronic device

A chip capacitor, comprising:

• a substrate having a longitudinal direction;
• a first external electrode and a second external electrode formed on or over the substrate;
• a capacitor element connected between the first external electrode and the second external electrode, the capacitor element extending in the longitudinal direction of the substrate;
• and
• a diode connected between the first external electrode and the second external electrode, and in parallel to the capacitor element, the diode extending in the longitudinal direction of the substrate,
• wherein the capacitor element includes:
• a lower electrode,
• a capacitance film that is laminated on or over the lower electrode, and
• an upper electrode facing the lower electrode across the capacitance film.