DAMMP3C3PJ datasheet(282/301 Pages) ITT

282 / 301 page

Dimensions are shown in mm (inch)

Dimensions subject to change

Star Clip — One of several designs used for screw

machine socket contacts. A tiny plated star shaped

clip is captivated inside a solid barrel into which the

pin contact fits. The clip creates a multi-point area

of mechanical and electrical continuity between

the mated contacts.

Stripper — A tool to remove insulation from a

wire.

Test Voltage — The range of voltages over which

the connector has been tested per the perimeters

in the applicable specification.

Thermoplastic — A plastic material that can be

softened by heat and rehardened into a solid state

by cooling. This process can be accomplished

using a variety of techniques.

Thermoset — A plastic material which hardens

when heat and pressure are applied. Unlike

thermoplastic, it cannot be remelted or remolded.

Through Hole — (Also known as a clearance hole)

A mounting hole without threads.

Turret — An interchangeable device which is

attached to a CRIMP TOOL that allows the tool to

crimp a range of contacts. Each turret is made to

crimp a specific style contact or a range of

contacts and/or wire gauges. See LOCATOR.

—

Abbreviation

for

Underwriter’s

Laboratories, a corporation supported by a group

of underwriters for the purpose of establishing

safety standards covering certain types of

equipment and components in the United States.

UL 94V-O — A flammability performance rating

set by Underwriter’s Laboratories for plastics.

V — Symbol for volt.

Vac — Volts, alternating current.

Vdc — Volts, direct current.

Vibration — A continuously reversing change in

the magnitude of a given force.

Volt — The unit of measurement of electromotive

force. It is equivalent to the force required to

produce a current of 1 ampere through a

resistance of one ohm.

Voltage — The force which causes current to flow

through an electrical conductor. Its symbol is E.

The greatest effective difference in potential

between and two conductors of a circuit.

Voltage Drop — The difference in voltage

between two points in a circuit due to the loss of

electrical pressure as a current flows through an

impedance.

D Subminiature

Glossary of Terms

281

Voltage Rating — The maximum voltage which a

connector can sustain without breaking down or

varying from design specifications.

Voltage Standing Wave Ratio — If a signal is sent

down a transmission line any discontinuity will

send a reflection back in the opposite direction.

Wire Sealing Grommet — A resilient disc with

holes in it to accommodate the individual wires

entering the rear of the connector. Each cavity

forms a tight seal against the wire insulation (as

long as wires within the specified diameter are

used). The grommet seals the back of the

connector against moisture, dirt, and air. The

grommet is normally held in place and

compressed by a backshell and/or ferrule. It is

usually a separate component, but may be part of

the insulator itself. Also see GROMMET CAVITY.

Wire Size — A numerical designation for

conductor diameter. This catalog uses American

Wire Gauge (AWG) which is based on the

approximate circular mil area of the wire. See AWG

and mm2.

Wrap Post Contact — A type of contact which is

terminated by wrapping wire around a post in a

manner that deforms the wire and creates a gas-

tight connection between the wire and the post.

This method is slow and labor intensive. If used at

all, it is used in prototype work.

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