. A type of crimp known as a "folded" crimp that brings the center of an open-seam barrel of a crimp terminal downward and folded as to result in a geometric V cross-section.
Connector design feature that fills the voids between the faces of a plug and a receptacle when they are fully engaged.
A document that advises manufacturing operations how much, what, and when to produce.
A measurement of the time in which a digital signal changes from logic 1 (high level) to logic 0 (low level.).
See also Rise Time, Signal Edge, Slew Rate.
Connector housing mold that can run more than one part number at one time. Family molds are used when production quantity is very small.
The number of inputs available on a logic gate.
The number of loads the output of a logic circuit can drive.
Forward noise ( or noise which flows toward the end or load end of the line) resulting from an active line being to close to a victim line from which the former's electric and magnetic fields couple to create this type of noise as a function of signal slew rate (or the voltage swing normalized to unit rise time), coupling length, and its relative coupling coefficients. Note that for a completely uniform, homogeneous material dielectric medium containing the line paths, the FEN is 0 ; thus only heterogeneous dielectrics support FEN.
Shields which completely enclose a circuit (2-D) or device (3-D) creating complete external noise immunity.
See also Cross Talk, Coupling Length.
See ATA-EIDE.
A fast diode, or a diode that can switch from a conducting state to a non-conducting state and back to conducting within 500 nanoseconds.
Tests on soldered joints. These tests are run at high stress with relatively low cycle failure or at low stresses under highly cyclic or vibration conditions.
The designated rms fault current which a loadbreak connector can close under specified conditions.
A deviation from plan in which the actual results are better than expected.
Fibre Channel. An industry standard for a bus and interconnect system typically used to connect disk storage and network devices (disk drives, servers, RAIDs, switches, routers, workstations, PCs, etc.) with fiber optic or copper cabling over a distance of up to 10 km. This standard uses a high-speed (Gbit/second) serial data path.
US Federal Communications Commission type plug used in telecommunications. Also known as WE plug or Western Electric plug, after its originator.
Fiber Distributed Data Interface. A standard for 100 Mbit/s fiber-optic local area network.
Usually an IDT straight connector in which the wire or cable is terminated at one connector and then continues to one or more other connectors in "daisy chain" style.
Insulators used to carry a metal conductor through a chassis while preventing the hot lead from shorting to the ground chassis.
Contrasted with feed-through connector, a connector in which wire or cable terminates at the connector and does not go on to other connectors.
Energy that is extracted from a high-level point in a circuit and applied to a lower level. Positive feedback reduces the stability of a device and is used to increase the sensitivity or produce oscillation in a system, just as the negative feedback in an amplifier improves stability and fidelity.
In a CATV system, the transmission cable from the head end (signal pickup) to the trunk amplifier. Also called a trunk cable.
A technique of moving components through the manufacturing process, in which a bowl moves housings or pins by vibration and aligns them into a track in preparation for assembly.
A Premium line RAST connector that mates directly to the PCB. Similar to an edge card.
A Premium line RAST connector that mates with a header on the PCB.
Fluorinated Ethylene-Propylene. A thermoplastic co-polymer material with good electrical insulating properties and chemical and heat resistance and with very low dielectric constant value.
FEP insulated wire with glass or asbestos braid.
Composed of, or containing, iron. A ferrous metal exhibits magnetic characteristics; a nonferrous metal, such as aluminum, does not.
A mechanical fixture, generally a rigid tube, used to confine and align the stripped end of a fiber.
Field-Effect Transistor
Far End Crosstalk
See Crosstalk.
Designation for fixture wire, flexible, rubber insulated, single conductor, 300 in, 60° C.
Same as FF-l but with 600 in rating.
See Flat Flex Cable.
Single conductor fixture wire, rubber insulated. 75° C, 16-18 AWG.
Same as FFH-l but with 600 in rating, 75° C, 16-18 AWG.
Final Goods Audit. A periodic audit that takes place after production but before product shipment. It measures the number of defectives found (after production) per million parts produced (PPM).
Material used to protect the fiber in a fiber optic cable from physical damage. Types of buffers include tight jacket and loose tube buffering.
A data transfer architecture designed for mass storage devices and other peripheral devices that require very high bandwidth.
Light transmission through optical fibers for communication or signaling.
See Premium line's complete line of Fiber Optics products .
A state of continuous Electric and/or Magnetic lines of force that pass through space or through a material emanating from free charges in the former case, and from moving charges in the latter case.
Either junction (JFET) or metal-oxide semiconductor (MOSFET) transistors in which the flow of charged particles through a bar of semiconductor material is controlled by the electric field or a reverse-biased junction (JFET), or an electrode insulated from the bar (MOSEFET). Due to the reverse bias (or the insulation) the input resistance is very high.
Non-conducting components cabled with the insulated conductors, to impart roundness, flexibility, tensile strength, or a combination of all three, to the cable.
An electric circuit that provides a specific frequency response. Examples are low-pass filters, high-pass filters, and band-pass filters.
Portion of production that is rejected in final inspection. This loss includes loss of material, labor, and all overhead incurred in the manufacturing process.
Contacts on the edge of a daughterboard that are inserted into the contact pads of an edge connector. Fingers are usually plated with precious metal.
A general stress analysis technique in which the structure is systematically analyzed little segment by little segment. It involves extensive numerical computation and is usually practical only when done on computers.
A device for preventing flames, gases, and smoke from passing through a riser.
Programs or data stored in ROM.
A sample part of an assembly, manufactured prior to the start of production, for the purpose of assuring that the manufacturer is capable of manufacturing a product that meets the requirements.
A connector design in which power contacts engage before signal contacts when two connector halves are mated. FMLB prevents damage to electrical circuitry in the system by having the ground pin mate first, followed by the power pin, and finally by the signal pins. FMLB is also called hot-plugging.
FITL
Fiber In The Loop.
Connector component that increases the mechanical retention of the component to the PCB by increasing solder area. Fitting nails relieve stress on solder joints.
Single conductor paper lead cables twisted together, without an overall covering.
A type of single conductor with synthetic thermosetting insulation. Heat resistant, moisture resistant, flame retarding. No overall covering. 90° C.
All rubber, parallel jacketed, light duty cord. 300 in, 60° C, 18 AWG only, 2 or 3 conductors.
Same as 5P-1 but of heavier construction. 300 V, 60° C, 16-18 AWG.
Same as 5P-2 but of heavier construction. 300 in, 60° C, 12-18 AWG.
Silver plated copper.
In fiber optics, a panel mounted connector that joins source to optical conductor, optical conductor to optical conductor, or optical conductor to detector.
A contact that is permanently included in the insert material during molding.
A screwless form-type boardlock that provides PCB retention. Used on Premium line DIN 41612 connectors.
