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303109102 PDF预览

303109102

更新时间: 2024-10-29 14:36:07
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力特 - LITTELFUSE /
页数 文件大小 规格书
8页 1053K
描述
Thumbwheel Switch

303109102 数据手册

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3 Series  
Thumbwheel Switches  
Features/Benefits  
Typical Applications  
Most complete product offering in the industry  
Spacers available to fit most panel cutouts  
Front or rear mounting options  
Test & measurement equipment  
Industrial equipment  
Computer devices  
Specifications  
Materials  
CONTACT RATING:  
HOUSING: ABS plastic.  
CARRY: 1 AMP continuous.  
SWITCH: 100 mA max.  
THUMBWHEEL: ABS plastic.  
ROTOR CONTACTS: Precious metal on copper alloy.  
OPERATING VOLTAGE: 50 mV to 28 V DC or 120 V AC.  
ELECTRICAL LIFE: 100,000 actuations.  
STATOR CONTACTS: Hard gold over nickel over copper  
on epoxy fiberglass.  
CONTACT RESISTANCE: Below 100 m Ω typ. initial @  
2-4 V DC, 100 mA.  
NOTE: Specifications and materials listed above are for switches with standard options  
For information on specific and custom switches, consult Customer Service Center.  
9
INSULATION RESISTANCE: 10 Ω min.  
DIELECTRIC STRENGTH: 500 Vrms min. @ sea level  
between common terminal and any output.  
* Note: All models listed are RoHS compliant. See Technical Data section of this catalog for  
RoHS compliant and compatible definitions and specifications.  
OPERATING TEMPERATURE: -40ºC to 65ºC.  
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 M–4 thru M–10. For additional options not shown in catalog, consult Customer Service Center.  
Consult factory for illumination availability.  
Series  
3
Thumbwheel switch  
Number of Sections  
0
1
2
3
4
5
6
7
8
9
Switch section  
1 Switch section  
2 Switch sections  
3 Switch sections  
4 Switch sections  
5 Switch sections  
6 Switch sections  
7 Switch sections  
8 Switch sections  
More than 8  
Function Code  
11 Decimal, SP, 10 position  
14 Resistor decade  
21 BCD, 10 position  
23 Complement of BCD, 10 position  
27 BCD, 10 position  
Mounting Style  
00 Snap-in, front mount  
09 Snap-in, front mount*  
10 Rear mount  
Terminations  
19 Rear mount*  
31 BCD, 10 position  
71 BCH, 16 position  
0
Type 0  
1
Type 1, extended type 0  
Solder pins with .100” spacing**  
Solder pins with .156” spacing**  
Any combination  
N
P
9
switch sections  
Color/Marking/Stops  
*X9 mounting styles must be ordered with ‘0’ number of sections.  
0
Matte black body, gloss  
black wheel,  
white marking  
M
Seal  
0
1
2
3
No seal  
Sealed contacts  
Dust lens  
Sealed contacts & dust lens  
** Note: Termination option N (RoHS compliant) replaced termination option 3 (Non-RoHS compliant).  
Termination option P (RoHS compliant) replaced termination option B (Non-RoHS compliant).  
Dimensions are shown: Inches (mm)  
Specifications and dimensions subject to change  
6 Mar 20  
www.ckswitches.com  
M–3  

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