Features
■ Bushing mount
■ High torque available
■ Optional 0.1% linearity
■ Optional center tap and rear
shaft extension
■ Non-standard features and specifications
available
■ Optional AR lug feature
■ Gangable with common or concentric
shafts
3540/3541 - Precision Potentiometer
3540
3541
3540S-1/3541H-1
Wirewound Element
Hybritron® Element
18.3
(.72)
Electrical Characteristics1
14.35 ± .38
(.565±.015)
Standard Resistance Range ..........100 to 100K ohms ..................1K to 100K ohms
Resistance Tolerance......................±5% ......................................±10%
5.72 ± .38
(.225±.015)
Independent Linearity ....................±0.25% ..................................±0.25%
Resolution ......................................See recommended part numbers Essentially infinite
Effective Electrical Angle ................3600° +10°, -0° ......................3600° +10°, -0°
Absolute Minimum Resistance/......1 ohm or 0.1% maximum ......Minimum voltage
1
10.32 +.00/.05
(.406+.000/-.002)
DIA.
3
3/8" 32-UNEF-2ATHD
.25
2
Minimum Voltage
(whichever is greater)
0.2% maximum
X 45° CHAMFER
(.010)
Noise ..............................................100 ohms ENR maximum ......Output smoothness 0.1%
maximum
Power Rating (Voltage Limited
ADJUSTMENT
.81
SLOT
WIDE
(.032)
By Power Dissipation or
447 VAC, Whichever Is Less)
+70°C ..........................................2 watts ..................................2 watts
+125°C ........................................0 watt ....................................0 watt
Dielectric Withstanding Voltage......MIL-STD-202, Method 301 ....MIL-STD-202, Method 301
Sea Level ....................................1,000 VAC minimum ..............1,000 VAC minimum
Insulation Resistance
.81±.25
(.032±.010)
X
DEEP
1.52
(.06)
6.342 + .000/ - .008
(.2497+.0000/-.0003)
DIA.
7.92 ± .38
(.312 ± .015)
19.05 ± .38
(.750 ± .015)
20.62 ± .79
(.812 ± .031)
(500 VDC) ....................................1,000 megohms minimum ....1,000 megohms minimum
Environmental Characteristics1
OPTIONAL ANTIROTATION LUG
(-91) 1.42 X .50 ON 7.4 RADIUS.
Operating Temperature
LENGTH 1.27 FROM MOUNTING SURFACE.
(SUGGESTED PANEL HOLE 1.6 DIA.)
Static Operation Temp Range......-55°C to +125°C ....................-55°C to +125°C
Dynamic Temp Range ..................+1°C to +125°C......................+1°C to +125°C
Temperature Coefficient2 ..............±50ppm/°C maximum/unit ....±100ppm/°C maximum/unit
Vibration..........................................15G ........................................15G
30°
± 5°
6.35
(.25)
Wiper Bounce ..............................0.1 millisecond maximum ......0.1 millisecond maximum
Shock..............................................50G ........................................50G
15.88
(.625)
R MAX.
Wiper Bounce ..............................0.1 millisecond maximum ......0.1 millisecond maximum
Load Life ........................................1,000 hours, 2 watts ..............1,000 hours, 2 watts
Total Resistance Shift ..................±2% ......................................±5%
12.45
(.49)
Rotational Life (No Load)................1,000,000 shaft revolutions2 ..5,000,000 shaft revolutions2
Total Resistance Shift ..................±5% maximum ......................±5% maximum
Moisture Resistance ......................MIL-STD-202, Method 103, ..MIL-STD-202, Method 103,
Condition B
Condition B
MTG. FACE
15.88
(.625)
Total Resistance Shift ..................±2% maximum ......................±5% maximum
DIA. MIN.
22.23 ± .38
(.875 ± .015)
Mechanical Characteristics1
Mechanical Angle ..........................3600° +10°, -0° ......................3600° +10°, -2°
Shaft Runout ..................................0.003 in. (0.08mm) T.I.R. ........0.003 in. (0.08mm) T.I.R.
Lateral Runout ................................0.005 in. (0.13mm) T.I.R. ........0.005 in. (0.13mm) T.I.R.
Pilot Diameter Runout ....................0.003 in. (0.08mm) T.I.R. ........0.003 in. (0.08mm) T.I.R.
Shaft End Play ................................0.012 in. (0.30mm) T.I.R. ........0.012 (0.30mm) T.I.R.
Shaft Radial Play ............................0.003 in. (0.08mm) T.I.R. ........0.003 (0.08mm) T.I.R.
Stop Strength ................................75 oz-in. (53 Ncm) minimum ..75 oz.-in. (53 Ncm) minimum
Torque (Starting & Running)............0.6 oz.-in. (0.35 Ncm) max. ..0.6 oz.-in. (0.35 Ncm) max.
Backlash ........................................1.0° maximum ........................1.0° maximum
Weight ............................................Approximately 21G ................Approximately 22.5G
Terminals ........................................Gold-plated solder lugs ........Gold-plated solder lugs
Ganging ..........................................2 cups maximum....................2 cups maximum
TOLERANCES: EXCEPT WHERE NOTED
.25
(.010),
.13
(.005)
DECIMALS: .XX ±
.XXX ±
FRACTIONS: ±1/64
MM
DIMENSIONS:
(IN.)
WIPER
2
CW
CCW
3
1
CLOCKWISE
1At room ambient: +25°C nominal and 50% relative humidity nominal, except as noted.
2Consult manufacturer for complete specification details.
Recommended Part Numbers
Part Number
3540S-1-201
3540S-1-501
3540S-1-102
3540S-1-202
3540S-1-502
3540S-1-103
3540S-1-203
Resistance
200
500
1,000
2,000
5,000
10,000
2,000
Resolution
.042
.031
.027
.021
.021
.019
.014
Part Number
3540S-1-103
3540S-1-203
3540S-1-503
3540S-1-104
3541H-1-102
3541H-1-502
3541H-1-103
Resistance
10,000
20,000
50,000
100,000
1,000
Resolution
.019
.014
.011
.008
.027
.021
.019
BOLD-FACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
5,000
10,000
FOR OTHER OPTIONS CONSULT FACTORY.
262
Specifications are subject to change without notice.
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