Power distributor for a vehicle and production method thereof

A power distributor for distributing electric power from a power source equipped in a vehicle to a plurality of electronic units, the power distributor comprising:

• an input terminal connected to the power source;
• a plurality of output terminals connected to each of the electronic units;
• a plurality of semiconductor switching elements each having a first current flowing terminal provided corresponding to the output terminals and electrically connected to the input terminal, and a second current flowing terminal electrically connected to the output terminals;
• a case for accommodating the semiconductor switching elements;
• and
• a heat radiation member provided to be exposed outside the case,
• wherein each of the semiconductor switching elements is electrically connected to the input terminal on a conductor board electrically connected to the first current flowing terminal;
• and
• the conductor board is thermally connected to the heat radiation member.