Electrical connector

An electrical connector comprising:

• an insulative housing including a plurality of passageways extending through opposite upper and lower surfaces in a vertical direction;
• a plurality of contact units disposed within the corresponding passageways, respectively, each of the contact units including:
• a primary piece essentially composed of an upper part and a lower part discrete from each other in the vertical direction, the upper part including a resilient upper contacting arm with an upper contacting section exposed above the upper surface and an upper abutment section at a free end thereof, the lower part including a resilient lower contacting arm with a lower contacting section exposed below the lower surface and a lower abutment section at a free end thereof, and
• a secondary piece discrete from the primary piece and being essentially composed of a middle part with an upper abutment region adapted to be abutted against by the upper abutment section and a lower abutment region adapted to be abutted against by the lower abutment section;
• wherein
• the upper part includes an upper retaining section secured to the housing, and the upper contacting arm extends from an upper end of the upper retaining section, and
• the lower part includes a lower retaining section secured to the housing, and the lower contacting arm extends from a lower end of the lower retaining section.

A method of making an electrical connector, comprising steps of:

• providing an insulative housing with a plurality of passageways extending therethrough in a vertical direction;
• inserting a middle part into a first groove in the passageway wherein the middle part forms an upper abutment region and a lower abutment region in the vertical direction;
• downwardly inserting an upper part into a second groove spaced from the first groove in a horizontal direction, which is perpendicular to the vertical direction, in the passageway wherein the upper part forms a resilient upper contacting arm with an upper contacting section exposed above the housing and an upper abutment section adapted to abut against the upper abutment region;
• and
• upwardly inserting a lower part into a third groove in the passageway wherein the lower part forms a resilient lower contacting arm with a lower contacting section exposed below the housing and a lower abutment section adapted to abut against the lower abutment region;
• wherein
• the upper abutment section is aligned with the lower abutment section in the vertical direction and both are located on an outer side of the middle part.