Features
■ Multiturn / Wirewound / Industrial / Sealed
■ Listed on the QPL for style RT26 per
MIL-R-27208
■ RoHS compliant*
■ For trimmer applications/processing
guidelines, click here
3260 - 1/4 ” Square Trimpot® Trimming Potentiometer
“Trimpot” is a registered trademark of Bourns, Inc.
†“Fluorinert” is a registered trademark of 3M Co.
Electrical Characteristics
Standard Resistance Range
.................................. 10 to 25K ohms
(see standard resistance table)
Resistance Tolerance ............. ±5 % std.
(tighter tolerance available)
Absolute Minimum Resistance
.......................... 0.1 % or 1 ohm max.
(whichever is greater)
Noise .....................100 ohms ENR max.
Resolution ............. See resistance table
Insulation Resistance ...............500 vdc.
1,000 megohms min.
Dielectric Strength
Sea Level................................ 600 vac
80,000 Feet ............................ 250 vac
Adjustment Angle .............11 turns nom.
Environmental Characteristics
Power Rating
85 °C ....................................0.25 watt
150 °C .......................................0 watt
Temperature Range ... -65 °C to +150 °C
Temperature Coeffi cient ..... ±70 ppm/°C
Seal Test ......................85 °C Fluorinert†
Humidity .......MIL-STD-202 Method 106
(2 % ΔTR, 100 Megohms IR)
Vibration ................. 30 G (1 % ΔTR; 1%
+ resolution ΔVR)
Shock ........................................... 100 G
(1 % ΔTR; 1 % + resolution ΔVR)
C° 58 @ ttaw 52.0 sruoh 000,1 efiL daoL
(2 % ΔTR; 500 ohms ENR)
Rotational Life .......................200 cycles
(2 % ΔTR; 500 ohms ENR)
Physical Characteristics
Torque .............................3.0 oz-in. max.
Mechanical Stops ................. Wiper idles
Terminals Solderable printed circuit 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 ............................UL 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90
Product Dimensions
13CW
CLOCKWISE
CCW
2WIPER
How To Order
3260 H - 1 - 502
Model
Style
Standard or Modifi ed
Product Indicator
-1 = Standard Product
Resistance Code
Consult factory for other available options.
REV. 04/14
TOLERANCES: ± 0.25 EXCEPT WHERE NOTED
(.010)
DIMENSIONS: MM
(INCHES)
3260H
Common Dimensions
.89
(.035)
1.27
(.050)
6.35 ± .51
(.250 ± .020)
4.78 ± .38
(.188 ± .015)
.76
(.030)
1.02 ± .38
(.040 ± .015)
4.32 ± .38
(.170 ± .015)
.41 ± .03
(.016 ± .001)
123
123
.89
(.035)
6.35 ± .51
(.250 ± .020)
6.35 ± .51
(.250 ± .020)
1.27
(.050)
4.32 ± .38
(.170 ± .015)
2.54
(.100) 2.54
(.100)
2.54
(.100)
DIA.
1.27
(.050)
1.27
(.050)
ADJ. SLOT
1.78
(.070)
.51
(.020)
.51
(.020)
WIDE
X
XDEEP
DIA.
3260W
Standard Resistance Table
Nominal
Resistance Resistance Resolution
(Ohms) Code (Percent)
10 100 1.90
20 200 1.50
50 500 1.23
100 101 1.00
200 201 0.94
500 501 0.58
1,000 102 0.50
2,000 202 0.45
5,000 502 0.34
10,000 103 0.29
20,000 203 0.28
25,000 253 0.23
Popular values listed in boldface. Special
resistances available.
*RoHS COMPLIANT
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
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*9
