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 67 names in this directory beginning with the letter P.
The structure or surface to which a device is mounted.

Panel Cut Out
A hole or group of holes cut in a panel or chassis for the purpose of mounting a component.

Panel Mount
A connector designed to be mounted in or on a panel. Term is most often associated with flanged connectors.

Panel Seal
A seal provided between a component and a panel.

Parallel Splice
A device for joining two or more conductors in which the conductors lie parallel and adjacent. (see LAP JOINT and SPLICE)

Passive Intermodulation (PIM)
PIM is an unwanted signal or signals generated by the non-linear mixing of 2 or more frequencies in a passive device such as a connector or cable. For more information describing the effects of nickel plating on PIM visit .

That portion of a printed circuit that carries current between two pads or between a pad and the terminal area (printed contact, edge pad).

The type of plug or receptacle that is not mounted in a fixed position or attached to a panel or side of equipment.

Peripheral Seal
A design feature that provides an environmental seal between the forward end of plug and forward end of the receptacle even though they are not fully engaged. It generally consists of a piece of rubber fastened around the inner sidewall of the receptacle front opening skirt or around the outer sidewall of the plug engagement section.

Phosphor Bronze
An alloy of copper tin and phosphorus that is resistant to corrosion and used for contact springs in switches and relays.

A semiconductor device that is used in lightwave systems to convert light energy to electrical energy.

A conductor or wire extending from an electrical or electronic device to serve as a connection.

Pigtail, Fiber
A short length of optical fiber permanently attached to an optical emitter, photodiode or connector. It is used to couple power between the opto-electronic component and the transmission fiber.

Pigtail, Wire
A short wire extending from an electric or electronic device to serve as a jumper or ground connection.

Pin Density
The quantity of pins on a component per unit area.

The nominal distance from center to center of adjacent conductors or contacts.

Plastic Deformation
Change in dimensions under load that is not recovered when the load is removed.

High polymeric substances, including both natural and synthetic products (not including rubber) that are capable of flowing under heat and pressure conditions at one time or another.

Plated Through-Hole
A hole formed by the deposition of metal on the sides of the hole and on both sides of the base to provide electrical connection from the conductive pattern on one side to that on the opposite side of the printed circuit board.

The overlay of a thin coating of metal on metallic components to prevent rusting or corrosion, sometimes also used to improve conductance, or to provide for easy soldering.

Plating Anode
Usually a pure form of the metal being used as the plating material, with the cathode being the workpiece being plated.

Plating Void
The area of absence of a particular metal from a specific cross sectional area.

Platinum is a contact material that provides low and consistent surface resistances. It is used in the moving contacts of ultra sensitive relays, thermostats, and potentiometers. Other metals are added to this precious metal to create alloys with higher mechanical wear resistance. Platinum sometimes can be used to replace gold in the plating of electrical contacts and other metal parts. It is resistant to corrosion and film formation.

The part of a connector system that is free to move when not interconnected. In the case of a wire to wire, fiber to fiber, or cable to cable, connector systems and board to board connector systems, the plug is the part of the system that will insert contacts into the receptacle body. The contacts can be either pins or sockets.

Plug Connector
An electrical connector intended to be attached to the free end of a conductor, wire, cable or bundle that couples or mates to a receptacle connector.

Plug, Sealing
An accessory used to fill open, non-wired cavities in a connector grommet so as to prevent the entry of moisture, fluids or foreign particulate contaminants.

Point of Electrical Contact
The position of application of the force that provides electrical contact.

Poke Home Contact
Term applied to a male or female contact to which a wire has been permanently attached prior to the assembly of the contact into the insert.

The arrangement or orientation of connector inserts, jackscrews, polarizing pins/sockets, keys/keyways, or configurations to prevent the mismating or cross mating of connectors.

Polarizing Pin, Socket, Key or Keyway
Devices incorporated in a connector to accomplish polarization.

Polarizing Slot
A slot at the edge of a printed circuit board used to assure proper insertion and location in a mating edgeboard connector.

A class of high temperature thermoplastic resins offering a wide range of physical and mechanical properties including high resistance to oxidation degradation, weathering, radiation, and all strong chemicals except strong bases; 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 device that is attached to a crimping tool and locates the contact in the correct position for crimping.

Positive Lock
A type of latch or locking mechanism used to hold a die set in an installation tool, or an insert in a connector shell, used in such a way that the parts cannot be unlocked accidentally. Also describes retention of certain wire terminating contacts (tabs) used with edge or printed circuit connectors.

Post Insulate
To insulate an electrical connection after assembly.

The permanent sealing of the cable end of a connector with a compound or material to exclude moisture, dust, dirt, air and/or provide a strain relief.

Potting Cup
An accessory that, when attached to the rear of a plug or receptacle, provides a pouring form for potting the wires and the wire entry end of the assembly.

Potting Mold
An item solid or split, designed to be used as a form into which a potting compound is poured or injected and allowed to cure or set to seal the back of the connector. The mold may or may not be removable after the potting cures.

To insulate an electrical connection before assembly.

Pre-Insulated Crimp Barrel
A crimp barrel with a permanent layer of insulation through which the crimp is made.

Pre-Insulated Terminal End
A terminal end having a barrel with a permanent layer of insulation through which a crimp is made.

The application of solder to a contact, conductor, or other connecting device prior to soldering; the application of tin plating to the basis metal of connecting devices prior to fabrication.

Pre-Tinned Solder Cup
Solder cups with inner surfaces that have been pre-coated with a small amount of tin lead solder.

Precious Metal
One of the relatively scarce and valuable metals - gold, silver, and the platinum group metals.

Precious Metal Alloy
Metals that contain high composition weights of the stable metals Gold (Au), Platinum (Pt), Palladium (Pd) and Silver (Ag).

An electrical contact that can be pressed into a hole in an insulator, printed board (with or without plated through-holes), or a metal plate.

Press-In Connections
A solderless electrical connection made by inserting a press-in termination into a plated-through hole of a printed board.

Press-In Section
The specially shaped section of a press-in termination that is suitable to perform the press in connection operation.

Press-In Termination (Post)
A termination having a specially shaped section suitable to provide for a solderless press-in connection.

Pressure Differential
The difference in pressure between one side of a connector and the other as in a bulkhead mounting or the pressure difference between the inside and outside of a sealed connector.

A tubular elastomeric sleeve forming part of a cable clamp assembly.

Primary Insulation
The layer of material that is designed to do the electrical insulating, usually the first layer of material applied over the conductor.

Printed Board Connector
A connector specifically designed to facilitate connections to printed boards.

Printed Circuit Board
An insulating board serving as a base for printed wiring and consisting almost entirely of point-to-point conductors and shielding.

Printed Contact
A portion of a conductive pattern, formed by printing, serving as a contact surface for a connector. Also called Terminal Area or Pad.

Printed Wiring
A conductive pattern within or bonded to the surface of a base material intended for point to point connection of separate components and not containing printed components.

Profile Stamped
The generation of a contact area and surface (bump, dimple, or other shaped protrusion) that is formed by using a mechanical stamping process.

Ability to select various circuit patterns by interconnecting or "jumping" appropriate contacts on one side of a connector plug or panel.

Propagation Delay
The time it takes for a signal to travel between two specified points of an interconnect system.

Propagation Time
Time required for a signal to travel between two points on a transmission line.

Pull Out Force
The axial force required to remove a terminated conductor from its attached contact or terminal; the axial force required to remove a contact from its retention member.

Pull-Off Connector
A connector equipped with a pull off coupling.

Pull-Off Coupling
A coupling in which unlocking is achieved by an axial pull on the coupling ring.

Pulse Rise or Fall Time
The time required for the electrical pulse to rise or fall between 10 percent and 90 percent of its steady state power 'on' or 'off' level.

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.