Bayonet Nut Coupling. A Level 4 connector with bayonet-style couplings used for jacks on instrument front panels.
A person who assembles components on a PCB.
Refers to the arrangement where a board-to-board connection is achieved by putting one board on top of another.
A type of connector that accepts cable at one end and connects to an IC socket or directly to the PC board at the other end.
Mounted in plastic or paper bobbins, lugs serve to connect coil wires to external lead wires.
Bell Operating Company. Refers to one of the US local telephone companies that used to be part of the Bell System. After divestiture, these companies became independent entities.
A transformation representation of a signal waveform, usually digital, from the time domain to the frequency domain showing signal magnitude as a function of its component frequency spectrum. Fundamental Frequency, Waveform Width, and Risetime are discernible from the plot, among other things.
Another term for connector housing or shell.
A flexible circuit assembly in which the components are bonded with conductive adhesive.
Round PVC insulated conductors that are placed side-by-side and chemically joined in a single plane.
Amount of adhesion between bonded surfaces, e.g., in cemented ribbon cable.
Permanent joining of metallic parts to form an electrically conductive path.
The attaching of a semiconductor chip to a bonding area on a substrate with a conductive or dielectric adhesive or a eutectic or solder alloy.
Metallized area at the end of a thin metallic strip to which a connection is to be made. Also known as a bonding island.
Fine gold or aluminum wire for making electrical connections in monolithic or hybrid circuits between various bonding pads on the semiconductor substrate and device terminals or substrate lands.
The female or receptacle half of a post-and-box or card connector. The box is usually attached to the daughterboard or wire assembly and mated to the male (also called header or post) assembly.
A terminal strip design feature in which wire is completely enclosed in a contact and cannot be pushed through the connector.
Another term for input/output or cabinet-to-cabinet connection.
Bits Per Inch. A measurement of the recording density of magnetic tape or disks.
A connector that joins a branch conductor to the main conductor at a specified angle.
A low cost contact alloy of copper and zinc. Brass is an excellent electric conductor. Brass reaches its yield point at low deflection force; therefore it deforms easily and fatigues slowly. Noble or noble-like metal platings are required in the critical contact area of the metal used as a connector.
Gold plating is best suited for low current use where excessive corrosion is a factor or when storage of two years or more is expected.
This 260 alloy material is tin plated prior to forming. Tin-plated brass satisfies most connector application requirements. Conductivity is 28 percent.
A seam formed when two sides of the wire barrel are butted against each other then brazed together using a hard solder with a high melting point.
Solderless terminal with a barrel seam brazed to form one piece. Brazed terminals are ideal for use on single-strand solid wire.
A group of welding processes in which the filler is a nonferrous metal or alloy with a melting point greater than 1000 degrees Fahrenheit, but lower than that of the metals or alloys to be joined. Brazing is sometimes referred to as hard soldering.
A preliminary circuit construction created to prove electronic feasibility of a design. In the early days of electronics, components were actually mounted on kitchen breadboards.
A movable contact that breaks one circuit before making the next circuit.
A wafer design used on unshrouded stick headers that allows customers to break down the headers into different circuit sizes.
The voltage at which an insulator or dielectric ruptures, or at which ionization and conduction take place in a gas or vapor.
The point at which one or more conductors separate from a multi-conductor cable to complete circuits at other points.
A piece of equipment used to breakout all connections of a cable for ease of testing.
An active LAN device that forwards packets between two or more LANs of similar type. For LANs of dissimilar type, a router is required.
See Router.
In electrical terms, the formation of a conductive path between conductors.
The filling or bridging with solder of the space between close, parallel conductors.
In general, covering a wide range of frequencies. The broadband label is sometimes used for a network that carries many different services or for video transmission.
High-speed telecommunications protocol that can transmit high-volume data over phone lines. B-ISDN uses fiber optic cable and synchronous transfer mode, and is faster than narrowband ISDN. B-ISDN can be used for voice, data, fax, e-mail, full motion video, and video conferencing.
A local area wiring configuration that includes a LAN and other communications channels, such as corporate informational video, security monitoring, etc., simultaneously on the same wire. Each application is sent as a different frequency of a frequency division multiplexed network. Broadband LANs are created by using multiple broadband short haul modems, usually with 75-ohm coaxial cable.
A low cost popular contact alloy of copper and tin, usually used as a phosphorus bronze alloy (commonly termed phos-bronze 10%) with composition of 90/10 Copper/Tin (+ 0.25% phosphorus); not as good as an electrical conductor as brass but much stronger with both higher yield and tensile breaking points. Noble or noble-like metal platings are required in the critical area of the metal used as a connector.
Plating done to a specified area of blanked terminals that are subsequently formed. This is a cost effective method because there is no gold on the scrap produced during stamping.
British Standards Institute
Bus Tie
British telecom type plug used in telecommunications.
A long snap-fit peg on an SL header that locks beneath the PC board and extends below it. It holds down a connector through solder processing. It is also referred to as a split peg.
High density memory utilizing microscopic magnetic domains in an aluminum garnet substrate.
A device that removes flat cable insulation from conductors. A unit of motorized buffing wheels scrapes the insulation and brushes it away. Also known as abrasion stripper.
The location at which cable enters a building from the outside.
The portion of the contact resistance that is due to the length, cross section, and material.
Type of connector designed for insertion into a panel cutout on the component side.
A means of providing connections to terminal areas of a device. A small mound is formed on the device (or substrate) pads, and is utilized as a contact for face down bonding.
A chip that has on its termination pads a bump of solder or gold used for bonding to external contacts.
When the raised solder bump is attached to the tape material.
A tape that contains the inner lead bond sites as raised metal bumps for the tape automated bonding process.
Conductors twisted together with the same lay and direction, without regard to geometric pattern.
Cable assembly terminology for round conductor cable assemblies. (Bundled together.)
A via that connects inner layers but does not extend to the surface of a substrate or board.
Subjecting a component or system to voltage and temperature stress for a period of time (such as 168 hours) followed by testing. The purpose is to screen out a weak component or equipment by stressing it prior to placing it in its intended application.
In LANs, a line or circuit through which a signal is passed. 16-bit or 32-bit bus refers to a data bus which can transfer 16-bit or 32-bit data at one time.
The arrangement of bus lines according to predefined specifications or protocols. For example: ISA-bus architecture, PCI-bus architecture.
Power distribution components. Many consist of two or more conductor layers, electrically insulated from one another and from other components by thin dielectric layers.
Non-insulated tinned copper wire used as a common lead.
A current-limiting reactor connected between two busses, or between two sections of one bus, to limit and localize any disturbance caused by either bus or bus section.
The joining of two or more circuits.
Joining of two conductors end-to-end, with no overlap and with their axes in line.
A connector in which two conductors come together end-to-end, but do not overlap with their axes in line.
Crimping die designed so that the nest and indenter touch at the end of the crimping cycle. Also called bottoming die.
In the forming process two sides of a wire barrel are formed end-to-end, or butted against each other.
A contact with a curved, hook-like termination often located at the rear of hermetic headers to facilitate soldering or desoldering of leads.
Device for joining conductors by butting them end-to-end.
A synthetic rubber with good electrical insulating properties.
Birmingham Wire Gauge
Armored building wire, 600 in.
A group of adjacent binary digits. 8 Bits. Also called a word.
