An actuator is provided for creating an electrical contact between two tracks of a printed circuit board. The actuator includes a polymer part, forming an arm including one contact end and one end for setting in motion; and a metal part, fixedly attached to the contact end, having a general shape of a cap.
1. An actuator for creating an electrical contact between two tracks of a printed circuit board, wherein the actuator comprises:
a polymer part, forming an arm comprising a contact end and an end for setting in motion; and
a metal part, fixedly attached to the contact end by glue having a tear strength of substantially equal to 100 grams and having a general shape of a cap;
said contact end of the actuator supporting said metal part being surrounded by an enclosure extending up to a contact base of the metal part, said enclosure forming a recess.
2. The actuator according to claim 1 , wherein said metal part has the shape of a spherical cap.
3. The actuator according to claim 1 , wherein said polymer part is made out of silicone with a hardness of 60 Shores A.
4. The actuator according to claim 1 , wherein said metal part is formed by a gold-plated spring steel sheet.
5. The actuator according to claim 1 , wherein said enclosure has the overall shape of a cone whose vertex is a point of the straight line passing through the central axis of the polymer part.