... calculators, telephones, electronic and toys . One.Piezo Ceramic Element Applications1. For sound making:Clocks,Calculators,Telephones,Washing machines ... circuit surge voltage resulting excessive force,falling,shock temperature change.4,If DC voltage is applied to ... proceduresWhen using a soldering iron ,the optimum temperature for soldering a lead wire to a metal ... past 21 years. Piezo Ceramic Element