Patent ID: 6966798
Filing Date: 2005-11-22
Classification: H01R

Abstract:
1. A modular jack adapted for permitting proper insertion of a full sized plug and preventing erroneous insertion of an undersized plug, the modular jack comprising: an insulative housing comprises an upper wall, a lower wall and a pair of sidewalls together defining a receiving space; a plurality of conductive terminals received in the receiving space; and an anti-mismating member assembled to a rear face of the housing, the anti-mismating member having a pair of prongs extending into the receiving space and foolproof retention means, wherein each prong has a main portion with an inner stopping portion for blocking the undersized plug and an outer guiding portion for being urged to deflect the main portion by the full sized plug; wherein when the retention means formed in the first position, the retention means extends with the prongs in a back-to-front direction and snaps the housing to create a retention force for securing the anti-mismating member in position when the undersized plug is blocked by the stopping portions of the prongs; when the retention means formed in the second position, the retention means extends in a slantwise direction and abuts against the housing to create an retention force for securing the anti-mismating member in position when the undersized plug is blocked by the stopping portions of the prongs; wherein the anti-mismating member further has a transverse connecting wall jointing the prongs, and wherein the prongs extend forwardly and substantially perpendicular to the connecting wall; wherein the modular jack further comprises a terminal inert assembled to a front face of the housing and having an insulative base, and wherein the base is partially cut to define a recessed area in a front region thereof; wherein the modular jack further comprises a spacer assembled to the housing behind the terminal insert; wherein the spacer is inserted into the rear face and positioned between the anti-mismating member and the terminal insert, the spacer having a pair of positioning ribs integrally formed on opposite sides of the body, each positioning rib has an outwardly extending latch in upper end thereof, and wherein the housing defines a pair of vertical slots defined in opposite inner sidewalls for receiving the positioning ribs to retain the spacer in position and a pair of horizontal grooves intersected with the vertical slots for guiding the spacer into the housing and engagingly receiving the latches.