Abstract: A plug connector pluggable with a mating connector in a connecting direction has a locking spring. The locking spring exerts a force on a pressure chamfer of the mating connector acting in the connecting direction when the plug connector is fully plugged together with the mating connector.

Abstract: An electrical contact device includes a first electrical contact portion mechanically fixing and electrically connecting the electrical contact device to a circuit board by press-fitting, a second electrical contact portion forming an electrical plug contact matable with an electrical mating contact element, and a spring portion arranged between the first and second electrical contact portions in a longitudinal direction of the electrical contact device. The second electrical contact portion has a fork structure with a pair of fork elements mechanically clamping and fixing the electrical mating contact element on the electrical contact device. The spring portion electrically connects the first and second contact portions. The spring portion permits an elastic variation of a spacing between the first and second electrical contact portions in the longitudinal direction.

Abstract: A contact ring including a ring-shaped structure formed of an electrically conductive material. The ring-shaped structure has a plurality of projections on at least one side and a plurality of blades on at least one side. The projections and the blades penetrate an electrically insulating surface layer of each of a pair of contact elements and contact an electrically conductive material of each of the contact elements to electrically connect the contact elements.

Abstract: An electrical flat socket contact device includes a contact chamber, a plurality of electrical contact springs arranged in the contact chamber, and a mechanical retaining spring arranged in the contact chamber separately from the electrical contact springs. A tab contact is insertable into the contact chamber. The electrical contact springs electrically contact the tab contact and the mechanical retaining spring mechanically retains the tab contact.

Abstract: A conical contact spring sleeve includes a radial concavity that projects radially inwards beyond an inner peripheral surface of the conical contact spring sleeve and/or a radial convexity that projects radially outwards beyond an outer peripheral surface of the conical contact spring sleeve.

Abstract: A contact ring including a ring-shaped structure formed of an electrically conductive material. The ring-shaped structure has a plurality of projections on at least one side and a plurality of blades on at least one side. The projections and the blades penetrate an electrically insulating surface layer of each of a pair of contact elements and contact an electrically conductive material of each of the contact elements to electrically connect the contact elements.

Abstract: A plug connector pluggable with a mating connector in a connecting direction has a locking spring. The locking spring exerts a force on a pressure chamfer of the mating connector acting in the connecting direction when the plug connector is fully plugged together with the mating connector.

Abstract: A conical contact spring sleeve includes a radial concavity that projects radially inwards beyond an inner peripheral surface of the conical contact spring sleeve and/or a radial convexity that projects radially outwards beyond an outer peripheral surface of the conical contact spring sleeve.