Capacitor unit, and its manufacturing method

A capacitor unit comprising:

• a plurality of capacitors, each having a lead wire on one end face;
• a circuit substrate for connecting the capacitors in series, in parallel, or in series parallel;
• two lead wires on the one end face of each capacitor, bent so that distal ends of the lead wires are perpendicular to a length direction of the capacitors to provide respective polarity in the same direction, and in a lead wire hole at the circuit substrate;
• a base part integral with a tubular holder for holding the other end face side not including the lead wires of the capacitors and a circuit substrate fixing part for fixing the circuit substrate;
• and
• a case for encapsulating the circuit substrate;
• wherein
• the capacitor unit in the case from the circuit substrate side
• with a distal end side of the other end face of the capacitors held by the holder,
• the circuit substrate fixed to the circuit substrate fixing part, and
• the circuit substrate and each lead wire connected.