Capacitor module for use in invertor, invertor and capacitor module

The present invention provides a small-sized capacitor module for use in an inverter, which is capable of suppressing the occurrence of unwanted inductance components in an electric connection path and which is suitable for a large current use. The present capacitor module is constituted by: mounting a plurality of ceramic capacitors (3) having first and second terminals (3a and 3b) on the first surface (1) of a substrate (2); forming a first conductor (12) on the first surface of the substrate (2); forming a second conductor (14) on the second surface of the substrate (2); electrically connecting first and second terminals (3a and 3b) to the first conductor (12) and the second conductor (14), respectively; forming, on the substrate (2), first and second terminal mounting portions where the respective first and second terminals of a switching module are mounted; and electrically connecting the first and second terminal mounting portions to the first and second conductors (12 and 14), respectively.