Patent ID: 8590142

Claim:
A process of producing a PTC device which comprises providing a PTC element having a polymer PTC component and metal electrodes placed on both sides thereto, the PTC component being formed of an electrically conductive polymer composition comprising a polymer material having a melting point and a conductive filler dispersed therein; and electrically connecting a lead to at least one of the metal electrodes-at a temperature which is lower than the melting point of the polymer material, the connection of the lead to the metal electrode being performed by an electrically conductive adhesive placed between the lead and the metal electrode, the electrically conductive adhesive comprising a thermosetting resin having a curing temperature lower than the melting point of the polymer material, and the lead being connected to the metal electrode by heating the conductive adhesive placed between the lead and the metal electrode so as to cure the thermosetting resin, the curing temperature of the thermosetting resin being at least 20° C. lower than the melting point of the polymer material.