Connector

A connector, comprising:

• a primary molded body that includes:
• metal terminals arranged in at least two rows with a plurality of the metal terminals in each of the rows, each of the metal terminals having a tip;
• and
• a core made of resin and having each of the metal terminals partially embedded therein, the core having a front surface and the tips of the metal terminals projecting from the front surface, a first groove extending across the front surface of the core at a position between the rows of metal terminals and second grooves extending across the front surface of the core, each of the second grooves intersecting the first groove and being between the metal terminals in each of the rows, the first and second grooves having different respective depths from the front surface of the core;
• and
• a resin molded portion formed by insert molding with the primary molded body as an insert, the resin molded portion including a covering with a back surface that covers the front surface of the core, the back surface including a first projection and second projections that completely fill the respective first and second grooves of the core;
• wherein the different depths of the first and second grooves impedes liquid creepage between the metal terminals.