An electrically conductive contact pin for pressing along a pressing direction into a through-hole of a printed circuit board, wherein for the contact pin the pressing direction is defined as a Z-direction, transverse to the Z-direction as an X-direction and transverse to the Z-direction and the X-direction as a Y-direction, the contact pin comprising a press-fit zone defined in a contact pin cross-sectional area spanned in the X-direction and in the Y-direction -- a central web region having two opposing web edges substantially parallel to the X-direction, -- two wing portions adjacent to the web portion in positive X-direction and negative X-direction, each wing portion having two ear portions, wherein one ear portion of each wing portion projects in the positive Y-direction, and another ear portion of each wing portion projects in the negative Y-direction beyond the web portion, wherein the web region is limited by a web rectangle, wherein the ear regions are limited by ear rectangles, wherein inner corner points of the ear rectangles facing a center of gravity of the cross-sectional area coincide with corner points of the web rectangle, characterized in that the web rectangle has a web width between 9% and 29% of a starting material thickness of the contact pin in the X-direction and a web thickness between 35% and 55% of the starting material thickness in the Y-direction and in that the ear rectangles have an ear width in the X-direction between 40% and 60% of the starting material thickness and have an ear thickness in the Y-direction between 15% and 35% of the starting material thickness. wherein for the contact pin the pressing direction is defined as a Z-direction, transverse to the Z-direction as an X-direction and transverse to the Z-direction and the X-direction as a Y-direction, the contact pin comprising a press-fit zone defined in a contact pin cross-sectional area spanned in the X-direction and in the Y-direction -- a central web region having two opposing web edges substantially parallel to the X-direction, -- two wing portions adjacent to the web portion in positive X-direction and negative X-direction, each wing portion having two ear portions, -- a central web region having two opposing web edges substantially parallel to the X-direction, -- two wing portions adjacent to the web portion in positive X-direction and negative X-direction, each wing portion having two ear portions, wherein one ear portion of each wing portion projects in the positive Y-direction, and another ear portion of each wing portion projects in the negative Y-direction beyond the web portion, wherein the web region is limited by a web rectangle, wherein the ear regions are limited by ear rectangles, wherein inner corner points of the ear rectangles facing a center of gravity of the cross-sectional area coincide with corner points of the web rectangle, characterized in that the web rectangle has a web width between 9% and 29% of a starting material thickness of the contact pin in the X-direction and a web thickness between 35% and 55% of the starting material thickness in the Y-direction and in that the ear rectangles have an ear width in the X-direction between 40% and 60% of the starting material thickness and have an ear thickness in the Y-direction between 15% and 35% of the starting material thickness.