A new composition of lead free piezoelectric ternary ceramic 0.94[Na0.8K0.2NbO3]-0.06LiNbO(3) has been synthesized. A well defined and less porous microstructure of the ceramic was prepared by optimized sintering at 1155 degrees C. High temperature orthorhombic to tetragonal phase transitions at 194 degrees C and Curie phase transition at 438 degrees C were observed with real dielectric constant values similar to 1400 and 10,500 at 1 kHz, respectively. The NKLN ceramic showed normal ferroelectric behavior. Its ac conductivity followed jump relaxation model for lower frequencies and double power law at higher frequencies with strong temperature dependence. A very high value of the piezoelectric charge coefficient 291 pC N-1 was obtained which implies its potential application in piezoelectric devices. Well switchable square shape and fatigue free P-E loops with high remnant polarizations were obtained in the temperature range 20 degrees C-100 degrees C. Pyroelectric coefficient value was found to be -874.3 mu C m(-2) degrees C-1 and 560 mu C m(-2) degrees C-1 for the temperature range 20 degrees C-60 degrees C and 60 degrees C- 100 degrees C respectively. (C) 2013 Elsevier B.V. All rights reserved.