A smart card includes a card bearing a module that is made up of a support supporting at least an electronic chip. The injector is integrally provided with a connector protruding radially outward. A TiO2 film 106 is formed by sputtering a Ti metal film 105 on the HfSiO film 104 and subjecting the Ti metal film 105 to a thermal oxidation treatment. The tappet may be made of ceramics.