Features
nꢀ Multiturnꢀ/ꢀCermetꢀ/ꢀIndustrialꢀ/ꢀSealed
nꢀ StandoffsꢀallowꢀthoroughꢀPCꢀboardꢀꢀ
ꢀ
washing
nꢀ Tapeꢀandꢀreelꢀpackagingꢀavailableꢀ
nꢀ RoHSꢀcompliant3ꢀversionꢀavailable
nꢀ Forꢀtrimmerꢀapplications/processingꢀꢀ
ꢀ
guidelines,ꢀclickꢀhere
ꢀ
ꢀꢀ3266ꢀ-ꢀ1/4ꢀ”ꢀSquareꢀTrimpot®ꢀTrimmingꢀPotentiometer
Electrical Characteristics
Product Dimensions
Standard Resistance Range
1.27ꢀ ꢀ.0833
(.ꢁ5ꢁꢀ ꢀ.ꢁ15ꢂ
........................10 ohms 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)
ꢀꢀ6.71ꢀ ꢀ.08
4.5ꢁꢀ ꢀ.08
1.27ꢀ ꢀ.2533
ꢀꢀ(.264ꢀ ꢀ.ꢁ15ꢂ
(.177ꢀ ꢀ.ꢁ15ꢂ
(.ꢁ5ꢁꢀ ꢀ.ꢁ1ꢁꢂ
ꢀꢀ6.71ꢀ ꢀ.08
TYP.
ꢀꢀ(.264ꢀ ꢀ.ꢁ15ꢂ
ADJ.ꢀSLOT
ꢀ1.78
1.ꢁ2
(.ꢁ4ꢁꢂ
DIA.
1.22ꢀ ꢀ.2533
(.ꢁ48ꢀ ꢀ.ꢁ1ꢁꢂ
.46ꢀ ꢀ.ꢁ033
(.ꢁ7ꢁꢂ
ꢀꢀ.51
(.ꢁ2ꢁꢂ
ꢀꢀ.64
ꢀ4.5ꢁꢀ ꢀ.0833
(.177ꢀ ꢀ.ꢁ15ꢂ
WIDE
DEEP
X
X
1.22ꢀ ꢀ.25
(.ꢁ18ꢀ ꢀ.ꢁꢁ1ꢂ
7.24ꢀ ꢀ.51
1
2 0
(.ꢁ48ꢀ ꢀ.ꢁ1ꢁꢂ
TYP.33
(.ꢁ25ꢂꢀ
ꢀꢀ(.285ꢀ ꢀ.ꢁ2ꢁꢂ
7.24ꢀ ꢀ.51
ꢀꢀ(.285ꢀ ꢀ.ꢁ2ꢁꢂ
.46ꢀ ꢀ.ꢁ033
(.ꢁ18ꢀ ꢀ.ꢁꢁ1ꢂ
Adjustability
ꢀ4.88ꢀ ꢀ.5133
(.192ꢀ ꢀ.ꢁ2ꢁꢂ
2.54
(.1ꢁꢁꢂ
1
2 0
Voltage Divider...................... ±0.02 %
Rheostat................................ ±0.05 %
Resolution ................................... Infinite
Insulation Resistance ...............500 vdc.
1,000 megohms min.
4.5ꢁ
(.177ꢂ
2.54
(.1ꢁꢁꢂ
.46ꢀ .ꢁ0
(.ꢁ18ꢀ .ꢁꢁ1ꢂ
DIA.33
2.54
(.1ꢁꢁꢂ
2.54
2.16
(.ꢁ85ꢂ
(.1ꢁꢁꢂ
ꢀ.7633
(.ꢁ0ꢁꢂ
2.54
(.1ꢁꢁꢂ
Dielectric Strength
Sea Level................................ 600 vac
80,000 Feet............................ 250 vac
Effective Travel .................12 turns nom.
1.27ꢀ ꢀ.2533
(.ꢁ5ꢁꢀ ꢀ.ꢁ1ꢁꢂ
1.ꢁ2
(.ꢁ4ꢁꢂ
4.01ꢀ ꢀ.08
(.17ꢁꢀ ꢀ.ꢁ15ꢂ
Environmental Characteristics
1.27ꢀ ꢀ.2533
(.ꢁ5ꢁꢀ ꢀ.ꢁ1ꢁꢂ
1
2 0
1.ꢁ2
ꢀ4.5ꢁꢀ ꢀ.08
(.177ꢀ ꢀ.ꢁ15ꢂ
Power Rating (300 volts max.)
(.ꢁ4ꢁꢂ
1.22ꢀ ꢀ.2533
(.ꢁ48ꢀ ꢀ.ꢁ1ꢁꢂ
70 °C....................................0.25 watt
150 °C.......................................0 watt
Temperature Range...-55 °C to +125 °C
Temperature Coefficient ... ±100 ppm/°C
Seal Test......................85 °C Fluorinert†
Humidity .......MIL-STD-202 Method 103
96 hours (2 % ΔTR, 10 Megohms IR)
Vibration ....... 30 G (1 % ΔTR; 1 % ΔVR)
Shock ......... 100 G (1 % ΔTR; 1 % ΔVR)
Load Life...1,000 hours 0.25 watt 70 °C
(3 % ΔTR; 3 % CRV)
ꢁ.76ꢀ ꢀ.25
(.ꢁ0ꢁꢀ ꢀ.ꢁ1ꢁꢂ
.46ꢀ ꢀ.ꢁ033
1.22ꢀ ꢀ.2533
(.ꢁ48ꢀ ꢀ.ꢁ1ꢁꢂ
(.ꢁ18ꢀ ꢀ.ꢁꢁ1ꢂ
1
2 0
7.24ꢀ ꢀ.51
ꢀꢀ(.85ꢁꢀ ꢀ.ꢁ2ꢁꢂ
2.54ꢀ ꢀ.25
(.1ꢁꢁꢀ ꢀ.ꢁ1ꢁꢂ
6.78ꢀ ꢀ.51
ꢀꢀ(.267ꢀ ꢀ.ꢁ2ꢁꢂ
2.54
(.1ꢁꢁꢂ
2.54ꢀ ꢀ.25
(.1ꢁꢁꢀ ꢀ.ꢁ1ꢁꢂ
4.5ꢁꢀ ꢀ.08
(.177ꢀ ꢀ.ꢁ15ꢂ
2.54
(.1ꢁꢁꢂ
2.54ꢀ ꢀ.25
(.1ꢁꢁꢀ ꢀ.ꢁ1ꢁꢂ
2.16
(.ꢁ85ꢂ
Rotational Life .......................200 cycles
(4 % ΔTR; 3 % or 3 ohms,
1.27ꢀ ꢀ.25
How To Order
3266 W - 1 - 103 __ LF
1.ꢁ2
(.ꢁ4ꢁꢂ
(.ꢁ5ꢁꢀ ꢀ.ꢁ1ꢁꢂ
whichever is greater, CRV)
Physical Characteristics
Model
1.22ꢀ ꢀ.25
(.ꢁ48ꢀ ꢀ.ꢁ1ꢁꢂ
1
2 0
Torque.............................3.0 oz-in. max.
Mechanical Stops.................Wiper idles
Terminals .......................Solderable pins
Weight .....................................0.015 oz.
Marking...........................Manufacturer’s
trademark, resistance code,
Style
.46ꢀ ꢀ.ꢁ033
(.ꢁ18ꢀ ꢀ.ꢁꢁ1ꢂ
Standard or Modified
Product Indicator
-1 = Standard Product
2.54
(.1ꢁꢁꢂ
2.54
(.1ꢁꢁꢂ
Resistance Code
.76
2.54
(.1ꢁꢁꢂ
ꢀꢀ(.ꢁ0ꢁꢂ
Packaging Designator
Blank = Tube (Standard)
R = Tape and Reel (Z and Y Pin Styles
Only)
wiring diagram, date code,
manufacturer’s model
1.ꢁ2
(.ꢁ4ꢁꢂ
number and style
A = Ammo Pack (Z and Y Pin Styles Only)
Wiper ...............50 % (Actual TR) ±10 %
Flammability ..........................U.L. 94V-0
Standard Packaging.....50 pcs. per tube
Adjustment Tool..............................H-90
**Common dimensions
Terminations
LF =
100 % Tin-plated (RoHS compliant)
Blank = 90 % Tin / 10 % Lead-plated
(Standard)
ꢀ
MM
(INCHESꢂ
DIMENSIONS:
ꢀ
ꢀ
ꢁ.25ꢀ ꢀꢀꢀꢀꢀꢀ
(.ꢁ1ꢁꢂ
Consult factory for other available options.
TOLERANCES:ꢀ
EXCEPTꢀWHEREꢀNOTED
ꢀ
Tape and reel material meets Antistatic ANSI/
ESD 5541-2003 packaging standards.
WIPER
2
CW
CCW
0
1
3RoHSꢀDirectiveꢀ2ꢁꢁ2/95/ECꢀJan.ꢀ27,ꢀ2ꢁꢁ0ꢀincludingꢀannexꢀandꢀRoHSꢀRecastꢀ2ꢁ11/65/EUꢀJuneꢀ8,ꢀ2ꢁ11.ꢀ
ꢀ†“Fluorinert”ꢀisꢀaꢀregisteredꢀtrademarkꢀofꢀ0MꢀCo.
CLOCKWISE
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Theꢀdeviceꢀcharacteristicsꢀandꢀparametersꢀinꢀthisꢀdataꢀsheetꢀcanꢀandꢀdoꢀvaryꢀinꢀdifferentꢀapplicationsꢀandꢀactualꢀdeviceꢀperformanceꢀmayꢀvaryꢀoverꢀtime.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.