3U0210000 Datasheet, PDF (1/5 Pages) ITT Industries – Tiny Pushwheel Switches

C&K 3U Series
Tiny Pushwheel Switches
Features/Benefits
Typical Applications
• Tiny size saves space
• Computer peripherals
• 10 and 16 position models available
• Test equipment
• ESD clip available on select models
• Instrumentation
• Snap-in front mount saves assembly time
Specifications
CONTACT RATING:
CARRY: 1 AMP continuous.
SWITCH: 0.4 VA max., 100 mA max., 28 V DC max.
OPERATING VOLTAGE: 50 mV to 28 V DC.
ELECTRICAL LIFE: 1,000,000 actuations.
CONTACT RESISTANCE: Below 300 m Ω typ. @
2-4 V DC, 100 mA.
INSULATION RESISTANCE: 109 Ω min. (dry).
DIELECTRIC STRENGTH: 500 Vrms min. @ sea level
between common terminal and any output.
OPERATING TEMPERATURE: –10ºC to 65ºC.
Materials
HOUSING: Polyester (UL 94V-0).
PUSHWHEEL: Polycarbonate.
PUSHBUTTON: Polyester (UL 94V-0).
ROTOR CONTACTS: Gold over nickel over copper alloy.
STATOR CONTACTS: Hard gold over nickel over copperon epoxy
fiberglass.
NOTE: Specifications and materials listed above are for switches with standard options.
For information on specific and custom switches, consult Customer Service Center.
Note: All models listed are RoHS compliant. See Technical Data section of this catalog for
RoHS compliant and compatible definitions and specifications.
Build-A-Switch
To order, simply select desired option from each category and place in the appropriate box. Available options are shown and
described on pages N–4 thru N–6. For additional options not shown in catalog, consult Customer Service Center.
Consult factory for illumination availability.
Series
3U Tiny pushwheel
Number of Sections
0 Switch section
1 1 Switch section
2 2 Switch sections
3 3 Switch sections
Function Code
21 BCD 1-2-4-8
71 BCH, 16 position
4 4 Switch sections
5 5 Switch sections
6 6 Switch sections
7 7 Switch sections
8 8 Switch sections
9 More than 8 switch sections
Mounting Style
0 Snap-in, front mount
Terminations
0 Short PC board
N Short PC board with pins*
9 Any combination
Dust Lens
0 No lens
2 Dust lens
Color/Marking/Stops
0 Matte black housing, gloss black wheel, extended actuator, white vertical characters, black pushbutton, no stops
9 Combination of body colors, wheel colors, marking and/or stops
A Matte black housing, gloss black wheel, extended actuator, white horizontal characters, black pushbutton, no stops
C Matte black housing, gloss black wheel, recessed actuator, white vertical characters, black pushbutton, no stops
N
E Matte black housing, gloss black wheel, recessed actuator, white horizontal characters, black pushbutton, no stops
* Note: Termination option N (RoHS compliant) replaces termination option 3 (non-RoHS compliant).
N–3
Dimensions are shown: Inch (mm)
Specifications and dimensions subject to change
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