An optoelectronic semiconductor component (100) is specified, with a support (1) which has a mounting surface (11) and at least one penetration (3), where the penetration (3) extends from the mounting surface (11) to a bottom surface (12) of the support (1) that lies opposite the mounting surface (11); at least one optoelectronic semiconductor chip (2), which is mounted on the mounting surface (11); a radiation-transparent casting body (5), which surrounds the at least one optoelectronic semiconductor chip (2) at least in places, where the casting body (5) is arranged at least in places in the penetration (3) of the support (1).