Features
■ Bushing mount
■ RoHS compliant*
■ Optional center tap and rear shaft extension
■ Optional AR lug feature
■ Gangable with common or concentric shafts
■ High torque available
■ Non-standard features and specifications
available
3540/3541 - Precision Potentiometer
®
1
Product Dimensions
Electrical Characteristics
3540 Wirewound Element 3541 Hybritron Element
Standard Resistance Range................100 to 100 K ohms.....................1 K to 100 K ohms
Total Resistance Tolerance..................±± ꢀ...........................................±10 ꢀ
Independent Linearity..........................±0.ꢁ± ꢀ......................................±0.ꢁ± ꢀ
Effective Electrical Angle .....................3600 ° +10 °, -0 ° .......................3600 ° +10 °, -0 °
Absolute Minimum Resistance/...........1 ohm or 0.1 ꢀ maximum..........0.ꢁ ꢀ maximum
Minimum Voltage.............................(whichever is greater)
3540S-1/3541H-1
18.3
(.72ꢀ
14.35 .38
(.565 .015ꢀ
5.72 .38
Noise/Output Smoothness ..................100 ohms ENR maximum..........0.1 ꢀ maximum
Dielectric Withstanding Voltage (MIL-STD-ꢁ0ꢁ, Method 301)
(.225 .015ꢀ
1
Sea Level.........................................1,000 VAC minimum ..................1,000 VAC minimum
Power Rating (Voltage Limited By Power Dissipation or 447 VAC, Whichever Is Less)
+70 °C..............................................ꢁ watts........................................ꢁ watts
+1ꢁ± °C............................................0 watt..........................................0 watt
Insulation Resistance (±00 VDC) ........1,000 megohms minimum..........1,000 megohms minimum
Resolution............................................See recommended part nos. .....Essentially infinite
10.32 +.00/.05
(.406+.000/-.002ꢀ
DIA.
3
3/8 " 32-UNEF-2ATHD
.25
2
X 45 ° CHAMFER
(.010ꢀ
ADJUSTMENT
.81
SLOT
WIDE
1
Environmental Characteristics
(.032ꢀ
.81 .25
(.032 .010ꢀ
Operating Temperature Range............-40 °C to +1ꢁ± °C.......................-40 °C to +1ꢁ± °C
Storage Temperature Range ...............-±± °C to +1ꢁ± °C.......................-±± °C to +1ꢁ± °C
Temperature Coefficient Over
X
DEEP
1.52
(.06ꢀ
6.342 + .000/ - .023
(.2497+.0000/-.0009ꢀ
DIA.
ꢁ
Storage Temperature Range ..........±±0 ppm/°C maximum/unit.........±100 ppm/°C maximum/unit
7.92 .38
(.312 .015ꢀ
Vibration ..............................................1± G ...........................................1± G
Wiper Bounce..................................0.1 millisecond maximum...........0.1 millisecond maximum
Shock...................................................±0 G ...........................................±0 G
19.05 .38
20.62 .79
(.750 .015ꢀ
(.812 .031ꢀ
Wiper Bounce..................................0.1 millisecond maximum...........0.1 millisecond maximum
Load Life..............................................1,000 hours, ꢁ watts...................1,000 hours, ꢁ watts
Total Resistance Shift......................±ꢁ ꢀ...........................................±± ꢀ
ꢁ
ꢁ
OPTIONAL ANTIROTATION LUG
(-91ꢀ 1.42 X .50 ON 7.4 RADIUS.
LENGTH 1.27 FROM MOUNTING SURFACE.
(SUGGESTED PANEL HOLE 1.6 DIA.ꢀ
Rotational Life (No Load).....................1,000,000 shaft revolutions .....±,000,000 shaft revolutions
Total Resistance Shift......................±± ꢀ maximum ..........................±± ꢀ maximum
Moisture Resistance (MIL-STD-ꢁ0ꢁ, Method 103, Condition B)
Total Resistance Shift......................±ꢁ ꢀ maximum ..........................±± ꢀ maximum
IP Rating..............................................IP 40...........................................IP 40
30 °
5 °
6.35
(.25ꢀ
1
Mechanical Characteristics
15.88
(.625ꢀ
R MAX.
Stop Strength..........................................................................................±3 N-cm (7± oz-in.) minimum
Mechanical Angle ......................................................................................................3600 ° +10 °, -0 °
Torque
12.45
(.49ꢀ
Starting & Running @ +ꢁ± °C...............................................................0.49 N-cm (0.7 oz.-in.) max.
Starting & Running @ -40 °C................................................................1.76 N-cm (ꢁ.± oz.-in.) max.
Mounting..................................................................................... 170-ꢁ00 N-cm (1±-18 lb.-in.) max.
Shaft Runout.................................................................................................0.08 mm (0.003 in.) T.I.R.
Lateral Runout..............................................................................................0.13 mm (0.00± in.) T.I.R.
Shaft End Play..............................................................................................0.30 mm (0.01ꢁ in.) T.I.R.
Shaft Radial Play..........................................................................................0.08 mm (0.003 in.) T.I.R.
Pilot Diameter Runout ..................................................................................0.08 mm (0.003 in.) T.I.R.
Backlash....................................................................................................................... 1.0 ° maximum
Weight .................................................................................................................Approximately ꢁ1 gm
Terminals......................................................................................................... Gold-plated solder lugs
Soldering Condition
MTG. FACE
15.88
(.625ꢀ
DIA. MIN.
22.23 .38
(.875 .015ꢀ
TOLERANCES: EXCEPT WHERE NOTED
.25
(.010ꢀ,
.13
(.005ꢀ
DECIMALS: .XX
.XXX
Manual Soldering...........................................................96.±Sn/3.0Ag/0.±Cu solid wire or no-clean
rosin cored wire; 370 °C (700 °F) max. for 3 seconds
FRACTIONS: 1/64
MM
DIMENSIONS:
(IN.ꢀ
Wave Soldering .................... 96.±Sn/3.0Ag/0.±Cu solder with no-clean flux; ꢁ60 °C (±00 °F) max.
for ± seconds
Wash processes ..................................................................................................Not recommended
Marking................................................. Manufacturer’s name and part number, resistance value and
tolerance, linearity tolerance, wiring diagram, and date code
WIPER
2
Ganging (Multiple Section Pots.)............................................................................... ꢁ cups maximum
Hardware....................................................One lockwasher (H-37-ꢁ) and one mounting nut (H-38-ꢁ)
is shipped with each potentiometer.
CW
CCW
3
1
CLOCKWISE
1
ꢁ
At room ambient: +ꢁ± °C nominal and ±0 ꢀ relative humidity nominal, except as noted.
Consult manufacturer for complete specification details.
Recommended Part Numbers
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
Part Number
Resistance (Ω)
200
Resolution
.042
Part Number
Resistance (Ω)
1,000
3540S-1-201L
3540S-1-501L
3540S-1-102L
3540S-1-202L
3540S-1-502L
3540S-1-103L
3540S-1-203L
3540S-1-503L
3540S-1-104L
3541H-1-102L
3541H-1-202L
3541H-1-502L
3541H-1-103L
3541H-1-203L
3541H-1-503L
3541H-1-104L
FOR OTHER OPTIONS CONSULT FACTORY.
500
.031
2,000
5,000
10,000
20,000
50,000
100,000
ROHS IDENTIFIER:
L = COMPLIANT
1,000
.027
2,000
.021
5,000
.021
10,000
20,000
50,000
100,000
.019
.014
.011
.008
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
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