Extra service, rubber insulated portable cord. 600 in, 60° or 75° C, 18-2 AWG, two or more conductors.
Silicone rubber insulation, asbestos or glass braid, maximum operating temperature, 125° C.
Society of Automotive Engineers
Storage Area Network
A connector design feature that permits safety wiring of plug and/or receptacle to prevent the loosening or vibrating free of the plug from the receptacle.
The vertical distance between a suspended conductor and an imaginary straight line that connects the points of suspension. Sag may be measured at the midpoint between the suspension, the lowest point of the conductor, or at any specified point.
See Near-End Noise, Coupled Noise.
See also Critical Length
Slow burning wire. Three cotton braids. Impregnated. 90° C.
Most commonly used type of synthetic rubber.
Single Connector Attach. An industry standard interface for connecting disk drives into arrays or to host computers (file servers). SCA is a specification written by the Small Form Factor Committee, which governs the connector interface used for plugging disk drives onto backplanes in disk drive arrays, for RAID storage systems, and for other computer applications. SCA has been replaced by SCA-2.
The second generation of the SCA standard, which includes several enhanced capabilities beyond those of SCA: blind-mating; FMLB contacts for hot plugging; and ESD clips, which are included but normally not functionally required.
Square Chip Carrier. A chip carrier package that has equal length and width dimensions.
See also Chip Carrier.
A drawing that shows the electrical connections, components, and functions of a specific circuit arrangement.
A type of rectifying (one way) diode formed simply by a metal terminal contacting a lightly-doped region in a semiconductor crystal. Its low forward voltage drop and quick response to pulses make it useful for improving the performance of TTL circuits.
A TTL circuit that incorporates Schottky diodes to greatly speed up TTL circuit operation.
See Silicon Controlled Rectifier.
A memory circuit designed for temporary storage of information that is being collected and sorted for immediate data processing.
Precision-machined, goblet-shaped brass receptacles with an insert (with three, four, or six contact fingers) that mates with the male contact. The greater the number of fingers, the greater the tension holding the union.
In fiber optics, a methods of breaking fiber. The fiber is scratched lightly and put under tension to break it. This technique yields clean breaks about 80 to 85 percent of the time.
Small Computer Systems Interface. (Pronounced "scuzzy".) A high-speed interface used to connect computers to devices such as hard drives, CD-ROM drives, floppy drives, tape drives, scanners, and printers. SCSI can connect multiple devices.
There have been several version of SCSI connectors:
Slang expression for SCSI.
Service drop cable.
Portable range or dryer cable. Three or four rubber insulated conductors with rubber or neoprene jacket, 300 in, 60° C, 4-10 AWG
Synchronous Dynamic Random Access Memory. Above ground service entrance, not protected against mechanical abuse. Flame retardant, moisture-resistant covering. Overall neoprene sheath, 60-75° C.
Above ground service entrance, not protected against mechanical abuse. Flame retardant, moisture-resistant covering. Overall neoprene sheath, 60-75° C.
Service entrance, steel armored under outer braid, one or two rubber insulated conductors with neutral conductor, moisture resistant tape, weatherproof braid finish, 300 in, 75° C.
A plug that is inserted to fill an unoccupied contact aperture in a connector insert. Commonly used in environmental connectors.
Terminal or splice conductor barrel made without an open seam.
A non-conductive material used to protect the conductor against abrasion or other mechanical degradation and provide a second electrical barrier. Placed over the primary insulation.
Devices designed to work in conjunction with primary protectors to provide additional protection for sensitive electronic equipment.
The time a hard disk takes to move its read-write head to the required track on the disk where the requested information is stored.
See Plating.
A connector design feature by which two mating pairs engage in the proper relative position.
The inductance of a conductor created or induced from its own internal magnetic field due to its own current-carrying flow of electricity. Also referred to as Inductance (internal).
See Inductance, Mutual Inductance, Inductance (Line), Loop Inductance.
A pressure type connector that quickly joins two conductors for tap-offs. It uses a contact element that is pressed down, shearing the insulation and tightly gripping the conductors. A snapover hinged cover, composed of insulation housing, is then shut to complete the installation.
Two part wire to board system, fully shielded for EMI/RFI protection, for use on I/O applications such as keyboards, graphic tablets, modems, bar code readers, cellular phones, audio/video and medical instrumentation. Flat and round shielded cable version are available.
A four wire access bus system designed to greatly simplify connection of peripherals such as keyboard, digitizing pad, mouse, track ball, joystick, bar code reader, etc. to a PC or workstation (up to 125 devices daisy chained from a single port. Allows for hot plugging and automatically reconfigures the operative system for the device just added to or removed from the bus.
A contact design in which the mating end is shaped like a bellow to give a constant spring rate.
In wire industry terminology, a material possessing electrical conduction properties that fall somewhere between conductors and insulators. Usually made by adding carbon particles to an insulator. Not the same as semiconductor materials, such as silicon, germanium, etc. that are used for making transistors and diodes.
A crystal (usually pure silicon or germanium) that possesses a small degree of conductivity and referred to as an intrinsic semi-conductor. When chemically doped with an element having atoms with an electronic valence number above or below that of the above pure crystalline elements (all quad-valent elements), the conductivity of such materials significantly but controllably increases, based on the level of doping; the doped material is then referred to as an extrinsic semiconductor.
The above semiconductor materials can be arranged and electrically connected to create active AC reactances such as diodes and transistors.
There are vaious types of semiconductor materials:
A system for terminating and electrically connecting an insulated power cable to electrical apparatus and/or other power cables. Designed so the electrical connection can be readily established or broken by engaging or separating mating parts of the connector at the operating interface.
A replaceable part that is designed for removal without damaging adjacent parts.
Pertaining to wire and cable, a layer of insulating material such as textile, paper, mylar, etc., that is placed between a conductor and its dielectric, between a cable jacket and the components it covers, or between various components of a multiple conductor cable.
See Surface Mount Automated Placement Equipment.
See Surface Mount Automated Placement Equipment.
A data transmission protocol in which data is transmitted in a series, one bit at a time. Serial transmission is capable of much higher bandwidth transmission than parallel electronic transmission when fiber optics technology is used.
A bus design that uses one line to send data and another line to receive data. A serial bus sends data in a series, one bit at a time, but has the capability to allow much higher bandwidth transmission than that of a parallel bus when fiber optic technology is used.
A method of connecting electrical components so current must flow through each component equally and there is only one path of current flow.
A circuit in which the components are arranged end-to-end to form a single path for current.
Any sum of resistance, installed in sequential order, within one circuit.
A connector pin feature in which a portion of the pin looks like a saw tooth edge. This gives added security within a header or, if on the terminating end, with the PCB.
Small grooves or indentations within a terminal wire barrel. Serrations increase tensile the strength and electrical conductivity of crimped terminations.
In general, a server is a computer program that provides services to other computer programs in the same or other computers. The computer that a server program runs is also frequently referred to as a server.
A parallel connection that joins conductors in which the contact between the conductor is obtained by means of mechanically-applied pressure.
The maximum voltage or current that a connector is designed to carry continuously.
See SEA.
An interconnecting device in which the mating parts are exactly alike at their mating surfaces. Also called hermaphroditic connector.
Silicone rubber insulated fixture wire. Solid or 7-strand conductor, 200° C.
14-18 AWG, 600 in rating.
18 AWG, 300 in rating.
18 AWG, 300 in rating.
14-l8 AWG, 600 in rating.
Portable mine power cable, three or four individually shielded conductors, 500° C.
Same as SH-A, shield overall.
Same as SH-B, grounding conductors.
Same as SH-A, grounding conductors.
Cylindrical or rod-like portion of a connector or contact.
Contacts made by stamping and bending sheet metal rather than by the machining of metal stock.
Outside case into which the insert and contacts are assembled. Shells of mating connectors usually also provide proper alignment and protection of projecting contacts also known as housing or body.
Super High Frequency. The spectrum between 3 and 30 GHz.
Polyvinyl insulated with felted asbestos, flameproof cotton or rayon braid. 600 in.
Device surrounding that portion of a connector which is used for attaching wires or cables to shield against electromagnetic interference, and/or protect connector wires or cable from mechanical damage.
See Shield Percentage.
The physical area of a circuit or cable actually covered by shielding material, expressed in percent.
A cable in which a metallic layer is placed around a conductor or group of conductors to prevent electrostatic or electromagnetic interference between the enclosed wires and external fields. The shield may be the metallic sheath of the cable or a metallic layer inside a non-metallic sheath.
A cable in which each insulated transmission line set of conductors (minimum of 2) is enclosed in a conducting envelope or shield construction.
The reduction in field strength that results from interposing a metallic barrier between a source and receptor of electro-magnetic energy. In terms of connectors, contacts can be either the source or receptor of electromagnetic interference.
The indentation hardness of a material, as measured by a durometer.
See also Critical Length
The designated RMS current that a connector can carry for a specified time under specified conditions.
See Dummy Connector.
A programmable switch that provides interconnect between adjacent wire-wrapped posts. It can be used in lieu of a bit switch for programming a backplane.
In injection molding, the total weight of the runner and all the parts being molded.
The number of cycles per hour at which a molding machine operates.
A connector in which the contact between the conductor and the connector is made by a shrink fit.
Synonym for insulation support.
See Header.
See Jumper.
A conductor that joins two parts of an electric circuit to divert part of the current.
Standard High Voltage. A quick connect/disconnect connector series with bayonet lock coupling. It operates safely up to 5000 volts AC.
