A board-to-board radio frequency coaxial connector includes an adapter, a clamping socket including a first outer conductor, a first inner conductor, and a first insulator, and a fixed socket including a second outer conductor, a second inner conductor, and a second insulator. The clamping socket and the fixed socket are respectively arranged at two ends of the adaptor. The adapter includes a third outer conductor, a third inner conductor, and two third insulators. The two third insulators are respectively arranged at two ends of the third inner conductors and sleeved on an outside of the third inner conductor. Each of the two third insulators includes a body portion and an auxiliary portion. The body portion includes a second groove recessed inwardly from its outer circumferential surface. Two ends of the third outer conductor are respectively electrically connected to the first and second outer conductors.

An RF connector is provided. The connector includes a first socket member. The first socket member includes a conductive sleeve and end cap. The conductive sleeve includes a top portion, a bottom portion, and a plurality of springs connecting the top portion and the bottom portion. A base inside the conductive sleeve includes a first matching hole configured to match to a first conductive pin of a first plug member. The end cap includes a base and a lip. In a first position, the top portion of the conductive sleeve contacts the base of the end cap and is partially enclosed by the lip of the end cap. The end cap prevents the removal of the conductive sleeve in the first position.

An adapter for electrically connecting a power tool battery pack with a power tool and/or a power tool battery pack charger. The adapter has a controller, and a wireless communication circuit connected to the controller for wireless communication with a computing device, the wireless communication circuit receiving data from the computing device. The controller can perform an action according to the data received from the computing device.

Embodiments may comprise forming a rigid, tubular outer housing of an electrically conductive material; inserting an electrical cable longitudinally into the outer housing, the electrical cable having an inner conductor and a dielectric jacket surrounding the inner conductor; and, reshaping at least one longitudinal segment of the outer housing to fix the electrical cable inside the outer housing.

A differential pin to RF adaptor includes a center conductor contact with an RF connector on one end and a signal contact on the other end. An insulating sleeve surrounds the central contact. A reference contact surrounds the insulating sleeve. The signal pin of the differential pair interfaces with the center conductor contact of the RF connector. The adaptor is structured to slide down over a pair of pins/leads so that the reference contact abuts a circuit board attached to the pins. The pins/leads are shielded all the way to the circuit board, which shields/isolates the pins from common mode and other types of interference. The adaptor maintains the shape of the signal pin and the reference pin during testing. The adaptor maintains a fixed impedance of the pins, which reduces or eliminates uncontrolled impedance and hence preserves system frequency response and reduces/eliminates erroneous ripple currents.

A plug connector for transmitting high-frequency signals includes a cable, a contact and a connecting element. The cable has a free end. The contact is mounted on the free end of the cable, and has a free contact end on a side facing away from the cable. The connecting element is disposed between the contact and the cable, and, in an assembled state, is fixedly connected to the contact and to the cable. The connecting element has a first portion with a first outer diameter on a side facing the contact and a second portion with a second outer diameter on a side facing the cable, the second outer diameter being larger than the first outer diameter. The first portion includes a third portion that has, at least in some regions of the third portion, an outer diameter corresponding to the second outer diameter.

A contact device includes a first contact element extending along a straight line and a second contact element inclined with respect to the first contact element. The first contact element has a connecting body extending along the straight line, a first contact portion, and a flap. The first contact portion has a first contact socket. The flap is connected to a first fixed end at a first side of the connecting body. The first contact portion is connected to the connecting body. The flap extends along the first straight line to the first contact portion and a free end of the flap is arranged at a distance from the first contact portion. The second contact element has a second contact portion engaging the first contact socket and electrically contacting the first contact portion.

A board to board connector assembly (1) includes a first connector (2) suitable to be arranged on a first printed circuit board (3) and a second connector (4) suitable to be arranged on a second printed circuit board (5). An adapter (6) is arranged in a mounted position between and interconnected to the first and the second connector (2, 4). The adapter (6) includes an adapter inner conductor (7) and an adapter outer conductor (8). The adapter outer conductor (8) is arranged separate from the adapter inner conductor (7) and comprises a bore (18) in which the adapter inner conductor (7) is arranged.

A connector system includes an adapter with a first mating portion, a second mating portion and a transition portion. A continuous outer wall extends across the first mating portion, the transition portion and the second mating potion. A first terminal positioned in the adapter. At least one receptacle has a receptacle mating section and a receptacle transition section. A continuous receptacle outer conductive wall extends across the receptacle mating section and the receptacle transition section. A receptacle inner wall extends perpendicular to the receptacle outer wall. A second terminal is positioned in the at least one receptacle. A retention member is provided in the receptacle mating section. The continuous outer wall and the continuous receptacle outer wall form a grounding shield minimizing signal leakage from the first terminal and the second terminal.

Provided are a shield member, a shield unit, and a connector module each of which allows easy alignment with a connection target instrument. The shield member includes a plurality of first elastic portions made of a conductive material and arranged annularly in a plate shape at an inner circumferential part of the shield member; a plurality of second elastic portions arranged annularly at an outer circumferential part of the shield member; and an intermediate portion between the plurality of first elastic portions and the plurality of second elastic portions. The plurality of first elastic portions are defined by a plurality of first slits each extending from an inner circumferential edge of the shield member in a radial direction of the shield member. The plurality of second elastic portions are defined by a plurality of second slits each extending from an outer circumferential edge of the shield member in the radial direction.