Provided is a semiconductor device enabling highly accurate adjustment of a mounting height at a time when the semiconductor device is mounted on an assembly board, and an electronic apparatus. A linear lead is extracted from a bottom surface of a cylindrical resin sealing body covering a semiconductor chip, and a plurality of helical leads are arranged so as to wind around the linear lead, to thereby form a multi-helical structure. The plurality of helical leads forming the multi-helical structure has the same pitch.