Features
■ Multiturn / Cermet / Industrial / Sealed
■ Listed on the QPL for style RJ26 per
MIL-R-22097 and RJR26 per
High-Rel MIL-R-39035
■ Patent #4427966 drive mechanism
3262/RJ26/RJR26 - 1/4” Trimming Potentiometer
Electrical Characteristics
Physical Characteristics (cont.)
3262P/RJ 26/RJ R26
Standard Resistance Range
........................................10 to 1 megohm
(see standard resistance table)
Resistance Tolerance .................±10% std.
(tighter tolerance available)
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.
Weight ..........................................0.015 oz.
Marking
1
2 3
1.02
(.040)
4.70
(.185)
3262 ................Manufacturer’s trademark,
resistance code, wiring diagram,
date code, manufacturer’s model
number and style
RJ26/RJR26 ...........Mil-spec part number
Wiper................Positioned at 50% nominal
Flammability...............................U.L. 94V-0
Standard Packaging .........50 pcs. per tube
Adjustment Tool ..................................H-90
.64
(.025)
2.54
2.54
(.100)
(.100)
2.54
(.100)
.64
(.025)
How To Order
3262 P - 1 - 103
1,000 megohms min.
Model
Style
Dielectric Strength
Sea Level ......................................600 vac
80,000 Feet...................................250 vac
Effective Travel......................12 turns nom.
WIPER
2
Standard or Modified
Product Indicator
CW
CCW
3
1
-1 = Standard Product
CLOCKWISE
Resistance Code
Environmental Characteristics
See page 82 for RJ26/RJR26 ordering
information.
Power Rating
(3262 300 volts max.;
RJ26/RJR26 200 volts max.)
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
METRIC
(INCHES)
Consult factory for other available options.
DIMENSIONS ARE:
85°C ...........................................0.25 watt
150°C ..............................................0 watt
Temperature Range ..........-65°C to +150°C
Temperature Coefficient .........±100ppm/°C
Seal Test ............................85°C Fluorinert*
Humidity
3262 ................MIL-STD-202 Method 103
96 hours (2% ∆TR, 100 Megohms IR)
RJ26 ................MIL-STD-202 Method 106
96 hours (1% ∆TR, 10 Megohms IR)
RJR26 .............MIL-STD-202 Method 106
96 hours (1% ∆TR, 100 Megohms IR)
Vibration
3262 ....................30G (1% ∆TR; 1% ∆VR)
RJ26/RJR26........20G (1% ∆TR; 1% ∆VR)
Shock..................100G (1% ∆TR; 1% ∆VR)
Load Life
3262 .........1,000 hours 0.25 watt @ 85°C
(3% ∆TR; 3% or 3 ohms,
3262W/RJ 26/RJ R26
Common Dimensions
6.35 ± .51
(.250 ± .020)
4.32 ± .38
(.170 ± .015)
ADJ. SLOT
1.78
Standard Resistance Table
DIA.
(.070)
.51
(.020)
.64
(.025)
6.35 ± .51
(.250 ± .020)
Resistance
(Ohms)
Resistance
Code
WIDE
DEEP
X
X
10
100
200
500
101
201
501
1.02
20
(.040)
1
2 3
50
.46 ± .025
100
200
500
DIA.
(.018 ± .001)
4.78 ± .38
(.188 ± .015)
2.54
(.100)
1,000
2,000
5,000
10,000
20,000
102
202
502
103
203
2.54
(.100)
.76
(.030)
2.54
(.100)
25,000
253
503
104
204
254
504
105
50,000
1.02
(.040)
whichever is greater, CRV)
100,000
200,000
250,000
500,000
1,000,000
RJ26 .........1,000 hours 0.25 watt @ 85°C
(2% ∆TR; 1% ∆VR)
RJR26.....10,000 hours 0.25 watt @ 85°C
(3% ∆TR)
Rotational Life ............................200 cycles
3262 ..................(2% ∆TR; 3% or 3 ohms,
whichever is greater, CRV)
3262X/RJ 26/RJ R26
1.52 ± .38
*
1.02
(.040)
(.060 ± .015)
Popular values listed in boldface. Special
resistances available.
SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.
1.02
(.040)
*
1
2 3
RJ26/RJR26 ...............................(2% ∆TR)
2.54
(.100)
Physical Characteristics
Torque..................................3.0 oz-in. max.
Mechanical Stops......................Wiper idles
Terminals
.76
(.030)
2.54
(.100)
3262 .................................Solderable pins
RJ26/RJR26 ...MIL-STD-202; Method 208
1.02
(.040)
Common dimensions
*
*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.
19
Specifications are subject to change without notice.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
