ECA-622-1995.pdf

_ _ _ EIA 622 95 3 3234600 0564386 739 EIA STANDARD N N (o I U w I ANSI/ EIA-62 2 -19 9 5 APPROVED: August 10, 1995 Glossary of Electrical Connector Related Terms EIA-622 SEPTEMBER 1995 ELECTRONIC INDUSTRIES ASSOCIATION ENGINEERING DEPARTMENT Copyright Electronic Components, Assemblies surface wear. (Erosion) Accelerated Aging are increased above normal operating values to obtain observable deterioration in a relatively short period of time. The plotted results give expected service life under normal conditions. Also called accelerated life test. The ability of a material to resist abrading and wear as from sand A test in which certain parameters, such as voltage and temperature, ACCEPTANCE TESTS and as agreed by purchaser and vendor. ACCESSIBLE INSULATION DISPLACEMENT CONNECTION ? K I insulation displacement connection in which it is possible to access test points for carrying out mechanical tests (e.g. transverse extraction force) and electrical measurements (e.9. contact resistance) without deactivation of any design features intended to establish and/or maintain the insulation displacement connection. This accessibility mainly occurs when the insulation displacement connection is enclosed in a component. ACCESSORY Mechanical devices, such as jackscrews, cable clamps, added to connector shells and other such hardware which is attached to connectors to make up the total connector configuration. ACCORD I ON to permit high deflection without over-stress. Those tests deemed necessary to determine acceptability of product A type of connector contact where a flat spring .is given a Z shape ACME A “square“ thread which allows for rapid coupling of connectors versus finer pitched threads. A larger cross-section of thread body makes this an extremely strong design versus the usual “vI1 thread (Ref: MIL-C-38999 series III either an increase in voltage or a loss of dielectric, or a combination of both. Copyright Electronic Components, Assemblies also used to facilitate blind mating. BELLOWS CONTACT spring rate over the full tolerance range of the mating unit. A connector contact which is a flat spring folded to provide a uniform J BENIGN ENVIRONMENT little or no effect or degradation on an atem; a controlled-environment. A term referring to kind and/or favorable conditions that cause BERYLLIUM COPPER The alloying and hardening of copper with the addition of the metal beryllium. This alloy is used extensively or electrical contact base metal because of its hardness and ability to withstand numerous flexures without relaxation or loss of its spring constant. BIFURCATED printed circuit card edge connectors. BIFURCATE CONNECTOR Pertaining to lengthwise slotting of a flat spring contact used in A hermaphroditic connector containing fork-shaped mating contacts. BIFURCATED CONTACT A flat contact with a lengthwise slot, the two arms of which apply contact force in the same direction. BINDING POST means of mechanical compression. A fixed terminal of the type to which conductors are connected by 5 Copyright Electronic Components, Assemblies the conductor is also crimped by such force inside the tube-like connector body. Compression connectors are in very intimate contact with the two ends of the conductors being spliced. COMPRESSIVE STRENGTH For materials that do not fail by a shattering fracture, the value is arbitrary, depending on the distortion allowed. CONCENTRICITY In a wire or cable, the degree to which the location of the geometric center of the conductor coincides with the geometric center of the surrounding insulation. CONCENTRIC CONTACT single mechanical assembly. CONDITIONING environment(s) prior to testing. CONDUCTANCE ( G ) through a material to the potential difference (VI at its ends. The maximum compressive stress a material is capable of sustaining. A set of coaxial contacts providing independent circuits through a Time-limited exposure of a test specimen to a specified The reciprocal of resistance. It is the ratio of current (I) passing CONDUCTIVE FOIL material and is intended for forming the condrictive pattern. A thin sheet of metal that may cover one or both sides of a base Copyright Electronic Components, Assemblies the conductive element in CONDUCTOR STOP which correctly positions the conductor on the conductor barrel. A device or design feature on a terminal, splice, contact, or tool CONDUCTOR PULL-OUT FORCE Same as CONDUCTOR TENSILE FORCE CONDUCTOR TENSILE FORCE conductor from its terminal end by exerting an axial pull. CONDUIT ADAPTER The force required to destroy a termination by separating a An accessory to secure a connector to a conduit. Specific configuration and arrangement of contacts in a CONFIGURATION multiple-contact connector. CONFINED CRESCENT CRIMP usually identified by two crescent-shaped forms on the top and b o t t o l i i of the wire barrel crimp. CONFORMAL COATING An insulating protective coating that conforms to the configuration of the object coated, usually applied to the complete PC board assembly. A crimp that remains within the OD of the original barrel. It is CONNECTION an electrical path. A physical interface between conductors and/or contacts to provide CONNECTION SLOT (IDC) suitable to displace the insulation of a wire and to insure a gas-tight connection between the termination and the conductor(s) of the wire. The specially shaped opening in an insulation displacement termination CONNECTOR A component used to provide rapid connect/disconnect service between electrical wire, cable, fiber, and printed wiring boards, and configured to properly terminate to these elements. CONNECTOR AREA external electrical connections. That portion of printed wiring used for the purpose of providing Copyright Electronic Components, Assemblies e.g., connector with backshell, cable clamp, contacts, and dust cover. CONNECTOR BLOCK A connector housing. CONNECTOR BODY required to make a complete connector assembly. A connector, less its contacts, termination elements, and accessories CONNECTOR, EDGE CARD so as to make electrical contact with conductive traces located on the circuit board. A connector into which the edge of a printed wiring card is inserted CONNECTOR, ELECTRICAL individual electrical conductors, and provides a means to continue the conductors to a mating connection device. CONNECTOR FRONT A device, either a plug or a receptacle, which is used to terminate The side of a connector which is the mating face. CONNECTOR, HERMAPHRODITIC identical connector. A connector which has features enabling it to be mated with an CONNECTOR HOUSING loaded. The part of a connector into which the insert and contacts are CONNECTOR INSERT a connector housing. An insulating element designed to support and position contacts in CONNECTOR INSERTION LOSS The loss of power due to insertion of a mated connector into a cable. CONNECTOR INTERFACE mated. The two surfaces of mating connectors which face each other when CONNECTOR MATED SET A particular combination of mating connectors. A family of connector inserts that are uniform in external dimensions, CONNECTOR MODULE but have the ability of each accepting different types of contacts or having different contact densities or configurations. CONNECTOR , PLUG a conductor, wire, cable bundle, or a printed circuit board which couples or mates to a receptacle connector. CONNECTOR REAR An electrical connector, intended to be attached to the free end of The wiring side of a connector. Copyright Electronic Components, Assemblies the time-dependent part of strain resulting from force. Creep at room temperature is sometimes called “cold f low11 A covering device or material used during storage and transit to An accessory used to cover the mating portion of a connector for CREEP DISTANCE electrically conductive surfaces. The shortest distance on the surface of an insulator separating two CREEPAGE The conduction of electricity across the surface of a dielectric. Copyright Electronic Components, Assemblies also known as bleed through. CURRENT (1) The phenomenon in which a signal transmitted on one wire of a cable The rate of transfer of electricity, usually expressed in amperes. CURRENT CARRYING CAPACITY exceeding its insulation and jacket temperature limitations. The maximum current an insulated conductor can safely carry without CURRENT RATING specified time at a specific temperature. CUTOUT, CONNECTOR purpose of mounting a connector. DEAD FACE when not engaged. The most common method uses a cover on the mating ends of connectors which automatically covers the contacts when the connectors are separated. Typical is a spring powered cover which automatically flips over the faces of the plug and/or receptacle when the two are separated. The maximum current which a device is designed to conduct for a A hole or group of holes cut in a panel, case, or chassis for the The term which describes the various methods to protect contacts Copyright Electronic Components, Assemblies Contacts in a multiple contact connector which are spaced in a Slot or cavity in a connector which bears directly on the cable. GROMMET protects terminations and wires/cables from adverse mechanical and environmental conditions. An elastomeric or plastic sealing device which supports and GROMMET FERRULE reduce the transmission of torque to the grommet. GROMMET NUT grommet and follower. A part of a component or accessory used to compress the grommet and/or A part of a component or an accessory used to retain the grommet or GROMMET W I R E RANGE The range of diameters of wire insulation accommodated by a grommet. GROUNDING CONDUCTOR to ground. A conductor which provides a current path from an electrical device GROUND (GRD) or other large conducting body to serve as an earth, thus making a complete electrical circuit. GAGE A conducting connection between an electrical circuit and the earth A term used to denote the physical size of a wire. Also spelled gage. A specially shaped part of a component which guides/inserts the GUIDING BLOCK wires into the slots. Copyright Electronic Components, Assemblies may be positioned and/or used in multiples to provide a polarization feature. Copyright Electronic Components, Assemblies the test occurs LIVE-LINE CONNECTOR A connector that may be installed or removed by means of an insulated stick while the conductor is energized. LOADBREAK CONNECTOR circuits. A connector designed to close and interrupt current on energized LOCATOR That part of the crimping die, positioner or turret head that places the terminal, splice or contact in the correct crimping area of the crimping tool or die. LOCKING DEVICE retention of their mating parts. LOCKING SPRING insert whose purpose is to retain the contact in the insert. A feature incorporated in certain components to provide mechanical A spring device either on the contact or installed in the connector Copyright Electronic Components, Assemblies resistant to abrasion and frictional wear; and with mechanical and electrical properties that can be retained during continuous use at 480 degrees F in free air. A class of high temperature thermoplastic resins offering a wide range Copyright Electronic Components, Assemblies the application of tin plating to the basis metal of connecting devices prior to fabrication. PFS-TINNED SOLDER CUP Solder cups with inner surfaces that have been pre-coated with a small amount of tin lead solder. Copyright Electronic Components, Assemblies the axial force required to remove a contact from its retention member. PULSE RISE or FALL TIME percent and 90 percent of its steady state power 'on' or 'off' level. The axial force required to remove a terminated conductor from its The time required for the electrical pulse to rise or fall between i0 PUSH-ON CONTACT A contact with which a connection is achieved by axial force, with connection or separation being restricted by friction. PUSH-PULL CONNECTOR A connector having a push-pull coupling. PUSH PULL COUPLING A quick axial coupling device with self-locking and unlocking features. Unlocking is achieved by an axial pull on the coupling ring. QUAD INDENT grouped indents on the connector barrel. An indenter configuration of a crimp tool producing four closely QUICK DISCONNECT CONNECTOR un-coupling of mating halves. RF CONNECTOR A type of connector which permits Connectors used for connecting or RACK A type of structure used to house permits convenient removal of portions RACK AND PANEL CONNECTOR One of two mating fixed connectors the rapid coupling and terminating coaxial cable electronic components which of the equipment. intended to provide a connection between a unit and its mounting rack, which is usually provided with an alignment device to ensure correct mating. It normally has no coupling device and is mated by the movement between the unit and the rack (does not apply to the printed boards). RADIO FREQUENCY (RF) 200GHz. The portion of the frequency spectrum lying between 4 0 K H Z and RADIO FREQUENCY INTERFERENCE (RFI) E.g., radar, radio, etc. usually electrical interference from intentionally emissive sources; RAM The moving portion in the head of a crimping tool. RANGE Number of sizes of connectors or cables of a particular type. FANGE , WIRE barrel, ferrule, grommet or accessory will accommodate. The designation of wire/conductor sizes that a given conductor Copyright Electronic Components, Assemblies protrusions on the rear of a connector housing for positive orientation of accessories. Alterations of the inside surface of a conductor barrel to provide SERVICE LIFE satisfactorily. The period of time which a device is expected to perform Copyright Electronic Components, Assemblies then it is pushed together. Copyright Electronic Components, Assemblies an obsolete term for crimping. TELEPHONE PLUG A free connector consisting of two or more contacts on a common shank. TENSILE PULL barrel of a terminal, splice, or contact. Amount of axial load required to break or pull wire from the crimped TENSILE STRENGTH Greatest longitudinal stress that a substance can bear withoutpulling apart. TERMINAL mechanical and electrical connections to a post, stud, chassis or another terminal A device attached to the end of a conductor to provide both TERMINAL BLOCK connection of one or more conductors. An assembly containing connection provisions to facilitate the TERMINAL BOARD A board fabricated from an insulating material containing a single or multiple row or arrangement of termination points for the purpose of making connections. TERMINAL END A component to be fitted to a conductor for attachment to a terminal. TERMINAL, EYELET providing a good mechanical as well as electrical connection. A terminal or tab that is a pierced or a closed hook shape, TERMINAL, FORK A fork shaped or split terminal used in solder applications. TERMINAL, HOOK A terminal or tab that is hook shaped to provide a good mechanical as well as an electrical connection when a wire is soldered to i