HD34-18-21SN-059 datasheet(162/164 Pages) TEC

162 / 164 page

INDUSTRIAL & COMMERCIAL TRANSPORTATION /// CONNECTOR SELECTOR

PAGE 162

GLOSSARY

TERM

DEFINITION

Ring Adapter

Cylindrical rim or collar attached to the rear of a connector to allow the attachment of backshells or strain relief.

Sealed Flange

A flange that is molded or tooled as an integral part of the connector body to help prevent leakage at the mounting site.

Sealing Plug

A non-conductive dummy pin inserted to fill an open cavity in a connector. Sealing plugs are required to maintain the integrity of the

environmental seal.

Selective Plating

Application of a thin coating of a finish metal to specific parts of a contact, but not to others. If selective plating is used, plating is

typically applied to the mating surface to provide better conductivity and reduce wear and corrosion.

Shrink Boot Adapter

Thermoplastic rear adapter designed to provide a lip for heat shrink to form around to attach it securely to a connector.

Socket

Wire termination with hollow mating end into which the pin or male terminal is inserted. Also referred to as a female contact.

Solid Contact

Closed barrel terminal manufactured using a cold heading process.

Stamped & Formed

Contact

Open barrel terminal manufactured using a precision stamping process.

Strain Relief

Hard plastic or metal device that attaches to the rear of a connector to provide wire support.

“T” Seal

Reduced diameter insert cavity in the rear grommet. Also referred to as thin seal, a “T” seal allows for the use of smaller wire or thinner

insulation diameter. A “T” seal is larger than an “E” seal and smaller than an “N” seal.

Terminal Position

Assurance (TPA)

A secondary locking mechanism. Snapped into place on the mating face of a connector after the connector is populated, a TPA holds

contacts in correct alignment for mating and prevents them from being removed.

Terminating Resistor

A connector that includes a device to create electrical resistance. Commonly used on J1939 applications to end the main trunk line or bus

network.

Threaded Adapter

A cylindrical device with screw threads attached to rear of connector to allow the attachment of a threaded backshell or strain relief.

Threaded Rear

Screw threads at the non-mating end of a connector to allow the attachment of a threaded backshell or strain relief.

Wedgelock

A device inserted into or onto the mating face of a connector to position and hold contacts in correct alignment.

Wire Router

Protective device attached to the rear of connector to provide wire bundle strain relief.

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