Abstract: A solder contact, having a contact region for the contact-connection of a plug contact, having at least one SMD solder surface, which is configured for soldering to a printed circuit board and for materially bonded connection to a solder pin and having at least one recess, which is configured to receive a solder pin.

Abstract: An electrical connection arrangement includes: at least two adjacent connection housings; and at least one strip-like connecting profile for inseparably connecting the adjacent connection housings. The connecting profile spans the adjacent connection housings. The connecting profile is fastened inseparably to the adjacent connection housings by a laser weld. In an embodiment, the connecting profile is fastened to a transverse side of the connection housings.

Abstract: A modular plug-in connector includes: at least one connection terminal; and a printed circuit board module housing which is connected to the at least one connection terminal. The printed circuit board module housing includes a recess for reversibly inserting a module printed circuit board, a voltage input terminal connectable to a voltage source, and a voltage supply contact that is electrically connected to the voltage input terminal. The module printed circuit board inserted in the recess is suppliable with electrical energy from the voltage input terminal vis-à-vis the voltage supply contact. The printed circuit board module housing includes a signal line terminal and a signal line contact electrically connected to the signal line terminal, such that data exchange between the signal line terminal and the module printed circuit board inserted into the recess occurs using the signal line contact.

Abstract: A modular plug-in connector includes: at least one connection terminal; and a printed circuit board module housing which is connected to the at least one connection terminal. The printed circuit board module housing includes a recess for reversibly inserting a module printed circuit board, a voltage input terminal connectable to a voltage source, and a voltage supply contact that is electrically connected to the voltage input terminal. The module printed circuit board inserted in the recess is suppliable with electrical energy from the voltage input terminal vis-à-vis the voltage supply contact. The printed circuit board module housing includes a signal line terminal and a signal line contact electrically connected to the signal line terminal, such that data exchange between the signal line terminal and the module printed circuit board inserted into the recess occurs using the signal line contact.

Abstract: A modular plug-in connector includes: at least one connection terminal; and a printed circuit board module housing which is connected to the at least one connection terminal. The printed circuit board module housing includes a recess for reversibly inserting a module printed circuit board, a voltage input terminal connectable to a voltage source, and a voltage supply contact that is electrically connected to the voltage input terminal. The module printed circuit board inserted in the recess is suppliable with electrical energy from the voltage input terminal vis-à-vis the voltage supply contact. The printed circuit board module housing includes a signal line terminal and a signal line contact electrically connected to the signal line terminal, such that data exchange between the signal line terminal and the module printed circuit board inserted into the recess occurs using the signal line contact.

Abstract: A locking device for fastening a connection element to a housing of a connector arrangement with a substantially u-shaped spring element. The spring element has a first limb and a second limb that is arranged substantially parallel to the first limb in a state of rest of the spring element, wherein the first limb is longer than the second limb.