FIG. 1 is a top, front and left side perspective view of an electrical connector showing my new design; FIG. 2 is a front view thereof; FIG. 3 is a rear view thereof; FIG. 4 is a top view thereof; FIG. 5 is a right side view thereof; FIG. 6 is a left side view thereof; and, FIG. 7 is a bottom view thereof. The broken line in the drawing represents unclaimed environment and forms no part of the claimed design.