5-1437567-8 Datasheet, PDF (294/326 Pages) Tyco Electronics – DIP Switch Part Number Index

Index/Matrixes
Glossary
• Oil-tight: A generic term for a panel seal (see) commonly used
in industrial settings. Defined by NEMA (see) and IP (see)
standards.
• Operating Force: See Actuation Force.
• Operating Temperature: The range of temperature within
which the device may be used. Unit of Measure: Degrees
celsius or fahrenheit (C or F).
• Operator: A panel mounted mechanical device (pushbutton,
selector, keylock, etc.) without contacts to which one or more
contact blocks (see) may be added to make a complete switch.
• Storage Temperature: The range of temperature within which
the device may be stored. Typically this is a wider range than
operating temperature. Unit of Measure: Degrees celsius or
fahrenheit (C or F).
• Surface Mount Devices: Components that are compatible with
surface mount PC board technology. Holes are not used for
component mounting. Component leads are soldered to pads on
the surface of the PC boards. For switches typically defined by
surface mount terminations (e.g., J-bend, L-bend, butt, etc.) and
compatibility with surface mount soldering (e.g., vapor phase
reflow, infrared, etc.) and cleaning processes.
• Overtravel: The distance the actuator may move between initial
contact position and the extreme mechanical position of the
actuator without damage to the switch. See travel. Pretravel.
Unit of Measure: Inch. Degree.
• Panel Seal: A panel seal provides a defined level of protection
against penetration of liquids through which the switch and
switch-to-panel interface to the rear of a panel. Unit of
Measure: Inches/ft. of water.
• Pole: The number of separate circuits that can be active through a
switch at any one time. A single pole switch allows one closed
circuit at a time. A double pole switch allows two closed
circuits, etc.
• Power Factor (PF): A measure of the inductive or capacitive
character of an electrical load. Unit of Measure: 0 to 1 (e.g.
0.75)
• Process Seal: A seal that prevents damage to or contamination of
the switch during the specified mechanical process. See wave
solderable. Surface Moutable.
• Push-On/Push-Off: See Push-Push.
• Push-Push (Alternative Action, Push-On/Push-Off): A
pushbutton switch style in which the electrical state of the
switch is maintained between actuations of the plunger.
• Tactile Feel (Feedback): A mechanical signal (typically a
“snap” or “click”) that indicates contact closure to the operator.
• Terminal: The metal portion of the switch, exterior to the body,
that is used to connect the switch to an electrical circuit.
Examples: PC, wire lug, Turrett, quick-connect, wire-wrap, etc.
• Throws: Number of circuits that can be controlled by any one
pole of a switch. Example: In a single pole — double throw
(SPDT) switch, only one circuit may be completed at a time.
However, there are two possible circuits (throws) that can be
made.
• Travel: The total distance the actuator moves to change electrical
position. See Pretravel. Overtravel. Unit of Measure: Inches,
degrees.
• Washable: Applied to PC board mounted devices indicating
compatibility with cleaning processes used after soldering. No
degredation of electrical or mechanical parameters occurs.
• Wave Solderable: Indicates the device is suitable for the wave
soldering and cleaning processes as supplied. See Process Seal.
• Wiping Contact: A contact mechanism in which the movable
contact with the fixed contact with a wiping motion. Typical to
slide and rotary switches.
• Quick-Connect Terminals: Flat tab or blade style terminals
designed to accept push-on female wire connectors (instead of
soldering). The most popular sizes are: 0.250”, 0.110” wide.
• Resistive load: A load in which the current and voltage are in
phase. See Capacitive Load, Inductive Load, Power Factor,
Inrush.
• Shorting Contact: See Make-Before-Break.
• Single Break Contacts: A contact mechanism using one set of
contacts to make or break a given circuit. Typical of electronic
or low power switches. See Double-Break Contacts.
• Splashproof: See panel Seal.
• Spring Return: See Momentary.
M
M9
Catalog 1308390
Issued 9-04
www.tycoelectronics.com
Dimensions are in inches
Dimensions are shown for
and millimeters unless otherwise reference purposes only.
specified. Values in parentheses Specifications subject
or brackets are metric equivalents. to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-5-729-0425
South America: 55-11-3611-1514
Hong Kong: 852-2735-1628
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