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Bourns Electronic

3266 Datasheet Preview

3266 Datasheet

1/4 Square Trimming Potentiometer

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Features
Multiturn / Cermet / Industrial / Sealed
Standoffs allow thorough PC board
washing
Tape and reel packaging available
Patent #4427966 drive mechanism
RoHS compliant* version available
3266 - 1/4 ” Square Trimming Potentiometer
Electrical Characteristics
Standard Resistance Range
....................................10 to 1 megohm
(see standard resistance table)
Resistance Tolerance ............±10 % std.
Absolute Minimum Resistance
..............................1 % or 2 ohms max.
(whichever is greater)
Contact Resistance Variation
...........................3.0 % or 3 ohms max.
(whichever is greater)
Adjustability
Voltage.....................................±0.02 %
Resistance ...............................±0.05 %
Resolution.....................................Infinite
Insulation Resistance ................500 vdc.
1,000 megohms min.
Dielectric Strength
Sea Level ..................................600 vac
80,000 Feet...............................250 vac
Effective Travel..................12 turns nom.
Environmental Characteristics
Power Rating (300 volts max.)
70 °C ......................................0.25 watt
150 °C .........................................0 watt
Temperature Range ....-55 °C to +150 °C
Temperature Coefficient ....±100 ppm/°C
Seal Test........................85 °C Fluorinert
Humidity........MIL-STD-202 Method 103
96 hours (2 % TR, 10 Megohms IR)
Vibration.........30 G (1 % TR; 1 % VR)
Shock...........100 G (1 % TR; 1 % VR)
Load Life ...1,000 hours 0.25 watt 70 °C
(3 % TR; 3 % CRV)
Rotational Life ........................200 cycles
(4 % TR; 3 % or 3 ohms,
whichever is greater, CRV)
Physical Characteristics
Torque .............................3.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ......................................0.015 oz.
Marking ...........................Manufacturer’s
trademark, resistance code,
wiring diagram, date code,
manufacturer’s model
number and style
Wiper................50 % (Actual TR) ±10 %
Flammability ...........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90
2 WIPER
CCW 1
CLOCKWISE
3 CW
3266W
Common Dimensions
1.24 ±.25**
(.049 ±.010)
4.50 ±.38**
(.177 ±.015)
7.24
(.285
±.51
±.020)
TYP.**
6.71 ±.38
(.264 ±.015)
TYP.
ADJ. SLOT
1.78
(.070)
DIA.
1.22 ±.25
(.048 ±.010)
X
.51
(.020)
WIDE
X
.64
(.025)
DEEP
4.78 ±.38**
(.188 ±.015)
1 23
.46 ±.13
(.018 ±.005)
2.54
(.100)
.46
(.018
±.03
±.001)
DIA.**
2.54
2.54 (.100)
.76** (.100)
(.030)
3266P
1.02
(.040)
1.52
(.06)
1 23
4.42 ± .51
(.174 ±.020)
0.76 ± .25
(.030 ± .010)
1.02 ±.25
(.040 ±.010)
2.54 ± .25
(.100 ± .010)
2.54 ± .25
(.100 ± .010)
3266X
1.02
(.040)
6.48 ±.51
(.255 ±.020)
2.54 ± .25
(.100 ± .010)
1.24 ±.25
(.049 ±.010)
2.54
(.100)
1 23
2.54
(.100)
1.22 ±.25
(.048 ±.010)
.46
(.018
±.13
±.005)
MIN.**
2.54
(.100)
.76
(.030)
1.02
(.040)
**COMMON DIMENSIONS
3266Y
4.50 ±.38
(.177 ±.015)
1.24 ±.25**
(.049 ±.010)
6.71 ±.38
(.264 ±.015)
1.22 ±.25
(.048 ±.010)
MIN.
0.46 ±.13
(.018 ±.005)
1.02
(.040 )
1 23
4.32
(.170)
2.54
(.100)
6.85 ±.51
(.270 ±.020)
2.54
(.100)
2.16
(.085)
3266Z
1.24 ±.25**
(.049 ±.010)
3.18
(.125)
7.24 ±.51
(.285 ±.020)
4.50 ±.38
(.177 ±.015)
(.00.1358) MIN.
1.02
(.040)
1.22 ±.25
(.048 ±.010)
1 23
4.50 ±.38
(.177 ±.015)
4.32
(.170)
2.54
(.100)
6.85 ±.51
(.270 ±.020)
2.54
(.100)
2.16
(.085)
3.18
(.125)
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
DIMENSIONS ARE:
MM
(INCHES)
How to Order
3266 W - 1 - 103 __ LF
Model
Style
Standard or Modified
Product Indicator
-1 = Standard Product
Resistance Code
Packaging Designator
Blank = Tube (Standard)
R = Tape and Reel (Z and Y Pin Styles
Only)
A = Ammo Pack (Z and Y Pin Styles Only)
Terminations
LF = 100 % Tin-plated (RoHS compliant)
Blank = 90 % Tin / 10 % Lead-plated
(Standard)
Consult factory for other available options.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
†“Fluorinert” is a registered trademark of 3M Co.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.




Bourns Electronic

3266 Datasheet Preview

3266 Datasheet

1/4 Square Trimming Potentiometer

No Preview Available !

3266 - 1/4 ” Square Trimming Potentiometer
Standard Resistance Table
Resistance
(Ohms)
10
20
50
100
200
500
1,000
2,000
5,000
10,000
20,000
25,000
50,000
100,000
200,000
250,000
500,000
1,000,000
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
503
104
204
254
504
105
Popular distribution resistance values listed in
boldface. Special resistances available.
Packaging Specifications
SIDE ADJUST
3266Z-1
3.81 ± .71
(.150 ± .028)
24.9 + .76
(.980 + .030)
12.70
(.500)
REF.
8.9 + .76 /- .5
(.035 + .030/ .020)
3
2
1
TOP ADJUST
3266Y-1
3.81 ± .71
(.150 ± .028)
8.9 + .76 /- .5
(.035 + .030/ .020)
3
18 + 1.0/ - 0.5
(709 + .040/ - .020)
12.7 + 0.3/ - 0.25
(.500 + .012/ - .010)
18 ± .76
(.709 ± .030)
4.0 ± .03
(.157 ± .001)
DIA.
18 + 1.0/ - 0.5
(709 + .040/ - .020)
12.7 + 0.3/ - 0.25
(.500 + .012/ - .010)
12.70
(.500) REF.
2 25.9 ± 0.76
1 (1.020 ± .030)
18 ± .76
(.709 ± .030)
4.0 ± .03
(.157 ± .001)
DIA.
3.81 ± .71
(.150 ± .028)
4.32 ± .38
(.170 ± .015)
4.32 ± .38
(.170 ± .015)
ALL
PINS
IN-LINE
ON
2.54
(.100)
CENTER
DIMENSIONS:
MM
(INCHES)
1000/REEL/BOX
2.16 ± .25
(.085 ± .010)
.43
(017
±
±
.05
.002)
DIA.
TYP.
ALL
PINS
IN-LINE
ON
2.54
(.100)
CENTER
DIMENSIONS:
MM
(INCHES)
1000/REEL/BOX
2.16 ± .25
(.085 ± .010)
Meets EIA Specification 468.
REV. 03/07
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.


Part Number 3266
Description 1/4 Square Trimming Potentiometer
Maker Bourns Electronic
PDF Download

3266 Datasheet PDF





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