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 36 names in this directory
Abrasion Resistance
The ability of a material to resist abrading and wear as from sand and dust or one item sliding against another; surface wear. (Erosion)

Accelerated Aging
A test in which certain parameters, such as voltage and temperature, 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.

Acceptance Tests
Those tests deemed necessary to determine acceptability of product and as agreed by purchaser and vendor.

Accessible Insulation Displacement Connection
An 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.g. 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 that is attached to connectors to make up the total connector configuration.

Accordion Contact
A type of connector contact where a flat spring is given a Z shape to permit high deflection without over stress.

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 "v" thread. (Ref: MIL-C-38999 series III & Bendix QWLD)

Adapter
An intermediate device to provide for connector attachments such as special accessories, special mounting means, or special inter-connection means to an electrical termination.

Adapter Connector
A fixed or free component to permit electrical connection(s) between two or more connectors where direct connection is mechanically impossible.

Adhesion Promotion
The chemical process of preparing a surface to enhance its ability to be bonded to another surface or to accept an over plate.

Aging
The change in properties of a material with time under specific conditions.

Airborne
Pertaining to applications peculiar to aircraft and missiles or other Systems designed for operation primarily within the earth's atmosphere.

Alignment Tube
A tube into which fiber ends are introduced, providing alignment prior to sealing the fiber ends in place to form a splice.

Alloy
A substance having metallic properties and being composed of two or more chemical elements of which at least one is an elemental metal.

Alternating Current
An electrical current (sinusoidal in nature), which reverses at regular intervals. The repetition rate is expressed as hertz (cycles per second).

Alternative Insert Position
Orientation achieved by rotating the insert in circular connectors

Ambient
The surrounding environment coming into contact with the system or component in question.

Ambient Temperature
The temperature of the surrounding environment.

Ampacity
See current carrying capacity.

Angular Misalignment
Angular departure of one fiber from the axis defined by the other when two fibers are connected or spliced.

Anneal
To heat a metal and cool slowly to relieve hardness or brittleness that may have occurred naturally or have been induced by pressure or bending.

Anodize
To form a protective insulating oxide layer on a metal (e.g. aluminum) by electrolytic action. Anodized finishes can be natural or any bright decorative color.

Anti-Bind Roll Off
Feature that prevents shell binding caused by side loads during mating/demating.

Anti-Rotation Connector
A connector designed to provide keying or locking provisions to maintain positive orientation for accessory hardware.

Anvil
That part of a crimping die, normally stationary, that positions and supports the terminal during crimping. Sometimes called Nest.

Apparent Diameter (of a stranded conductor)
The diameter of the circumscribing circle of the bundle of strands.

Arc
A discharge of electricity caused by a breakdown in dielectric; either an increase in voltage or a loss of dielectric, or a combination of both.

Arc Resistance
The resistance of a material to the effects of a high voltage, low current arc (under prescribed conditions) passing across the surface of the material. The arc resistance is stated as a measure of total elapsed time at that voltage required to form a conductive path on the surface (material carbonized by the arc).

Aspect Ratio
A ratio of length or depth of a hole to its preplated diameter.

Asperity
A conducting material microscopic-level surface roughness. These surface imperfections affect the effective contact area when two contact surfaces are mated with one another.

Attenuation
The reduction of average power during the transmission of a signal from the input to the output of the device under test, usually measured in decibels (dB).

Avalanche Photodiode (APD)
A photo detector used in high speed, broad bandwidth fiber optic systems. The avalanche feature results from the rush of electrons across a junction under a very high bias. The APD requires a much higher reverse bias and has a higher cutoff frequency than a PIN-photodiode, and therefore, at higher frequencies is a more sensitive device.

AWG
An abbreviation for American Wire Gage.

Axial Displacement
The incremental difference between an initial position.

Axial Lead
A lead wire extending from a component or module body along its longitudinal axis.

Axis
The center line about which parts of a body may be referred.