Patent ID: 7699627

Claim:
An electrical connector to be mounted on a printed circuit board, comprising: an insulative housing having a front mating face, a base portion, a mating portion protruding forwardly from the base portion and a plurality of passageways recessed rearward from the front mating face, the housing defining a plurality of blocks on a rear side thereof, the blocks each having an abutting face on a lower end thereof; a plurality of first contacts received in the passageways respectively and each including a contacting portion exposed in the passageway to mate with a corresponding mating connector, a level retaining arm fixed in the passageway and defining a front end connecting with the contacting portion and a rear end opposite to the front end, and a vertical mounting portion extending downwardly from a rear end of the retaining arm, the vertical mounting portion including a soldering portion to be soldered onto the printed circuit board and a protrusion tab extending laterally to have a larger width than that of the soldering portion, the protrusion tab abutting against the abutting face to prevent the vertical mounting portion from moving upwardly upon assembling the electrical connector onto the printed circuit board; wherein the blocks are spaced from each other to define a slot between every two adjacent blocks, the first contacts each define a fixing portion retained in the corresponding slot, the fixing portion connects with the protrusion tab, the fixing portion has a width smaller than that of the protrusion tab; wherein the first contacts each define a body portion interconnecting with the fixing portion and the rear end of the retaining arm, the block defines a first step portion extending upwardly from an upper end thereof, the body portion abuts against a rear side face of the first step portion, the body portion has a width larger than that of the fixing portion; and wherein the block further defines a second step portion located forward and above the first step portion, the body portions include a first row abutting against the rear side face of the first step portion and a second row abutting against a rear side face of the second step portion, the second row is located forward the first row.