Electrical connector and electrical connector stack

An electrical connector stack comprising:

• a first electrical connector;
• and
• a second electrical connector separate from the first electrical connector and arranged over the first electrical connector, each of the first and second electrical connectors including:
• a terminal having a terminal portion extending in a mating direction and an electrical wire joining portion extending rearward from the terminal portion and adapted to be joined to an electrical wire;
• and
• a housing, including:
• a cavity receiving the terminal therein along the mating direction with a front end of the terminal facing frontward;
• a wall supporting the terminal;
• a catching portion protruding into the cavity and securing the terminal within the cavity;
• and
• an opening formed at a position opposite to the catching portion in a protruding direction of the catching portion, wherein the housing of the first electrical connector closes at least a portion of the opening of the second electrical connector.

An electrical connector comprising:

• a terminal;
• and
• a housing, including:
• a cavity receiving the terminal therein along a mating direction with a front end of the terminal facing frontward;
• a wall supporting the terminal;
• a catch protruding into the cavity and securing the terminal within the cavity, the terminal includes a first catch portion engaging with the catch of the housing and a second catch portion adapted to engage with a catch of an adjacent electrical connector;
• and
• an opening formed through the wall and opposite to the catch.