The braking device for vehicles, comprising a support element (2) supporting a block of friction material (3), an electrically insulated electrical circuit (9), and at least one piezoceramic sensor (4) interposed between the block of friction material (3) and the support element (2), the electrical circuit (9) being connected to the piezoceramic sensor (4) so as to pick up an electric response signal emitted by the piezoceramic sensor (4) when the braking device is subjected to an external compression force, and further comprising at least one protective element (16) having one or more layers of resin-based material applied to protect the piezoceramic sensor (4), said protective element (16) being configured to direct a predetermined part of said external compression force onto an area of the support element (2) surrounding the piezoceramic sensor (4), the resin-based material being selected from among materials having substantially stable mechanical properties in a temperature interval comprised between -40°C and at least 200°C, so as to limit or cancel out the variation in the response signal with the temperature variations to which said at least one piezoceramic sensor (4) is exposed in said temperature interval.