| 摘要 |
The present invention relates to an electrical contact pair (1), comprising an electrically conductive contact element (2) and a mating-contact element (3) which is likewise electrically conductive and which may be brought into electrical contact with the contact element (2) at least one contact point (C), wherein the contact element (2) and/or the mating-contact element (3) is/are equipped, at least at the contact point (C), with a tin- containing material, and a predetermined normal force (N) is provided, by means of which the contact element (2) and the mating-contact element (3) are compressed together in operation. In order to increase the reliability of tin-containing electrical contact pairs, the surfaces of the contact element (2) and/or the mating-contact element (3) are provided, at the contact point (C), with at least one curvature radius (Rl, R2, R3, R4), wherein the sum of the reciprocals of the curvature radii (Rl, R2, R3, R4) multiplied by the third root of the normal force (N) acting between the contact element (2) and mating-contact element (3) is less than 3.3. |
