Connectors 101

Connectors 101

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
There are currently 23 names in this directory
DEAD FACE
The term which describes the various methods to protect contacts when not engaged. The most common method uses a cover on the mating ends of connectors that automatically covers the contacts when the connectors are separated. Typical is a spring powered cover that automatically flips over the faces of the plug and/or receptacle when the two are separated.

DEAD FRONT
Mating face of a connector designed so that the contacts are recessed below the surface of the connector insulator body to prevent accidental short circuiting of the connector.

DEPOSITION
Process of applying a material to a base via vacuum, chemical, electrical, screening, or vapor methods.

DEPTH OF CRIMP
The distance the crimp die indenter indents the conductor barrel or ferrule.

DIELECTRIC
A material having electrical insulating properties.

DIELECTRIC BREAKDOWN
The voltage required to cause an electrical failure or breakthrough of the insulation.

DIELECTRIC STRENGTH
The voltage that an insulating material can withstand before breakdown occurs, usually expressed as a voltage gradient (such as volts per mil). Also called electric strength and disruptive gradient.

DIELECTRIC WITHSTANDING VOLTAGE
The voltage that an insulating material can withstand, under specified circumstances before breakdown occurs. It is usually expressed as a minimum voltage or a voltage gradient such as "volts per mil."

DIFFERENTIAL MODE VOLTAGE
(1) The instantaneous algebraic difference between the potential of two signals applied to the two sides of a balanced circuit. Also called metallic voltage in the telephone industry. (2) The instantaneous algebraic difference of two signals applied to a balanced circuit, where both signals are referred to a common reference.

DIFFERENTIAL SIGNAL
(1) The instantaneous, algebraic difference between two signals. (2) A signal that is conveyed between two separate conductors, instead of one active conductor and signal ground. The magnitude of the differential signal is the difference between the two signals, rather than the voltages between the two individual signals and ground.

DIFFERENTIAL VOLTAGE SIGNAL
The voltage difference between the true and complementary signals from a driver with two single-ended outputs whose signals always complement each other.

DIMENSIONAL STABILITY
A measure of dimensional change caused by such factors such as temperature, humidity, chemical treatment, age or stress, usually expressed as a units/unit.

DIN CONNECTOR
A connector specified by the DIN 41612 specification. Developed by the German Institute For Standardization, and the Association of German Engineers. Widely used internationally for computer backpanel/plug-in circuit card applications.

DIP SOLDER
The process of making electrical connections, usually to a printed circuit board, by the use of dipping one side of the board into molten solder, thus soldering the projecting component leads to the circuitry printed on the board.

DIP SOLDER CONTACTS
A contact with a termination intended to be bath-soldered.

DIP SOLDER TERMINAL
The terminals (termination elements) on a connector that are inserted into holes in the printed circuit board and then soldered into place.

DISCONNECT
A conductive device designed to be separated from its mated part.

DRIVE SIGNAL
For the time domain method, the drive signal is a step wave form. For the frequency domain method, the drive signal is sinusoidal.

DUMMY CONNECTOR
A connector receptacle housing that does not have provisions for attaching conductors. It is generally used for storage of a cable assembly connector plug.

DUMMY CONNECTOR, PLUG
A connector device designed to mate with a receptacle connector so as to perform protective, environmental and/or electrical shorting functions.

DUMMY CONNECTOR, RECEPTACLE
A connector device designed to mate with a plug connector so as to perform protective, environmental, and cable and harness routing/fitting and storage functions.

DUST COVER
See COVER, ELECTRICAL CONNECTOR

DYNAMIC GAP
The minimum distance between opposing contacts in an edgeboard connector when a PC board is rapidly removed.