FIELD: data cards. SUBSTANCE: data card has case of at least one upper layer and at least one lower layer external dimensions of both being equal; modular component with integrated circuit for processing and/or memorizing personal data inserted between upper and lower layers. Novelty is that leveling layer made of leveling material for filling voids in modular component between the latter and upper layer of card and/or lower one, and/or ridges on modular component surface is provided between modular component 4 and upper layer of card and/or its lower layer 4. EFFECT: facilitated assembly and wiring of card due to adequate specified tolerances for dimensions and layout; enhanced reliability and service life of card. 21 cl, 2 dwg
