1. A circuit device, comprising:a circuit board;
a connector fixed to the circuit board; and
a resin portion covering the circuit board and the connector,
the connector includes a housing body and a cut-off receiving portion projecting from the housing body, and
the cut-off receiving portion includes a projecting portion projecting outward from the housing body and an inclined wall extending from the projecting portion and the inclined wall having a tip spaced from the projecting portion, the inclined wall being inclined to be closer to the housing body toward the tip of the inclined wall and a part of the inclined wall is embedded in the resin portion.