M
PL
IA
N
Features
■
Multiturn / Wirewound / Industrial / Sealed
■
Listed on the QPL
for style
RT26
per
*R
oH
S
CO
T
MIL-R-27208
■
RoHS compliant*
■
For trimmer applications/processing
guidelines,
click here
3260 - 1/4 ” Square Trimpot
®
Trimming Potentiometer
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 Coefficient ..... ±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)
Load Life1,000 hours 0.25 watt @ 85 °C
(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
3260H
Common Dimensions
6.35 ± .51
(.250 ± .020)
.89
(.035)
1 2 3
6.35 ± .51
(.250 ± .020)
4.78 ± .38
(.188 ± .015)
.76
(.030)
2.54
(.100)
2.54
(.100)
1.27
(.050)
ADJ. SLOT
1.78 DIA.
(.070)
.51
WIDE
X
(.020)
.51
DEEP
X
(.020)
How To Order
3260 H - 1 - 502
Model
Style
Standard or Modified
Product Indicator
-1 = Standard Product
Resistance Code
Consult factory for other available options.
2.54
(.100)
1.02 ± .38
(.040 ± .015)
4.32 ± .38
(.170 ± .015)
Standard Resistance Table
Resistance
(Ohms)
10
20
50
100
200
500
1,000
2,000
5,000
10,000
20,000
25,000
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
253
Nominal
Resolution
(Percent)
1.90
1.50
1.23
1.00
0.94
0.58
0.50
0.45
0.34
0.29
0.28
0.23
1.27
(.050)
.41 ± .03
DIA.
(.016 ± .001)
3260W
1.27
(.050)
Popular values listed in boldface. Special
resistances available.
1 2 3
6.35 ± .51
(.250 ± .020)
4.32 ± .38
(.170 ± .015)
1.27
(.050)
.89
(.035)
2
CCW
WIPER
1
CLOCKWISE
3
CW
DIMENSIONS:
TOLERANCES: ±
0.25
(.010)
MM
(INCHES)
EXCEPT WHERE NOTED
REV. 04/14
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
“Trimpot” is a registered trademark of Bourns, Inc.
†“Fluorinert” is a registered trademark of 3M Co.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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