This work simulates the electromechanical properties and related parameters of 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 single crystal / polymer composites with 0–3, 1–3 and 2–2 connectivities. Advantages in performance are related to the presence of the highly piezo-active component. Comparison of results for 0–3 connectivity is made