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Features
■
Bushing mount
■
Sealable
■
Non-standard features and specifications available
■
Optional high torque feature
■
Optional center tap feature
■
Gangable
3500/3501 - Precision Potentiometer
Electrical Characteristics
1
3500 Wirewound Element
3501 Hybritron
®
Element
Standard Resistance Range .................................................... 50 to 200 K ohms ..........................................1 K to 200 K ohms
Total Resistance Tolerance ...................................................... ±3 % ..............................................................±10 %
Independent Linearity .............................................................. ±0.20 % .........................................................±0.25 %
Effective Electrical Angle ......................................................... 3600 ° +10 °, -0 ° ...........................................3600 ° +10 °, -2 °
Absolute Minimum Resistance/Minimum Voltage ................... 1 ohm or 0.1 % maximum .............................0.2 % maximum
(whichever is greater)
Noise ...................................................................................... 100 ohms ENR maximum ..............................Output smoothness 0.1 % max.
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ............................................................................. 1,500 VAC minimum ......................................1,500 VAC minimum
70,000 Feet.......................................................................... 400 VAC minimum .........................................400 VAC minimum
Power Rating (Voltage Limited By Power Dissipation or 325 VAC, Whichever Is Less)
+70 °C.................................................................................. 2 watts ...........................................................2 watts
+125 °C................................................................................ 0 watt .............................................................0 watt
Insulation Resistance (500 VDC) ............................................. 1,000 megohms minimum .............................1,000 megohms minimum
Resolution ............................................................................... See recommended part nos ..........................Essentially infinite
Environmental Characteristics
1
Operating Temperature Range ................................................ +1 °C to +125 °C ...........................................+1 °C to +125 °C
Storage Temperature Range ................................................... -65 °C to +125 °C ..........................................-65 °C to +125 °C
Temperature Coefficient Over
Storage Temperature Range
2
.............................................. ±50 ppm/°C maximum/unit ...........................±100 ppm/°C maximum/unit
Vibration .................................................................................. 20 G ...............................................................20 G
Wiper Bounce ...................................................................... 0.1 millisecond maximum ..............................0.1 millisecond maximum
Total Resistance Shift .......................................................... ±2 % maximum .............................................±2 % maximum
Voltage Ratio Shift ............................................................... ±0.1 % maximum ..........................................±0.1 % maximum
Shock ...................................................................................... 100 G .............................................................100 G
Wiper Bounce ...................................................................... 0.1 millisecond maximum ..............................0.1 millisecond maximum
Total Resistance Shift .......................................................... ±2 % maximum .............................................±2 % maximum
Voltage Ratio Shift ............................................................... ±0.1 % maximum ..........................................±0.1 % maximum
Load Life.................................................................................. 1,000 hours, 2 watts ......................................1,000 hours, 2 watts
Total Resistance Shift .......................................................... ±2 % maximum .............................................±5 % maximum
Rotational Life (No Load) ......................................................... 2,000,000 shaft revolutions
2
..........................4,000,000 shaft revolutions
Total Resistance Shift .......................................................... ±5 % maximum .............................................±5 % maximum
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Total Resistance Shift .......................................................... ±2 % maximum .............................................±5 % maximum
IP Rating .................................................................................. IP 65 ..............................................................IP 65
Mechanical Characteristics
1
Stop Strength ......................................................................................................................................................................... 67.8 N-cm (96 oz.-in.) minimum
Mechanical Angle ..........................................................................................................................................................................................3600 ° +10 °, -0 °
Torque (Starting & Running).................................................................................................................................................. 0.42 N-cm (0.6 oz.-in.) maximum
Mounting................................................................................................................................................................. 170-200 N-cm (15-18 lb.-in.) maximum
Shaft Runout .....................................................................................................................................................................................0.05 mm (0.002 in.) T.I.R.
Lateral Runout ...................................................................................................................................................................................0.13 mm (0.005 in.) T.I.R.
Shaft End Play ...................................................................................................................................................................................0.13 mm (0.005 in.) T.I.R.
Shaft Radial Play ...............................................................................................................................................................................0.08 mm (0.003 in.) T.I.R.
Pilot Diameter Runout .......................................................................................................................................................................0.05 mm (0.002 in.) T.I.R.
Backlash ........................................................................................................................................................................................................... 1.0 ° maximum
Weight .................................................................................................................................................................................................... Approximately 28 gm
Terminals ................................................................................................................................... Gold-plated solder lugs or turrets (see Product Dimensions)
Soldering Condition
Manual Soldering .........................................................96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire; 370 °C (700 °F) max. for 3 seconds
Wave Soldering.................................................................................. 96.5Sn/3.0Ag/0.5Cu solder with no-clean flux; 260 °C (500 °F) max. for 5 seconds
Wash processes ......................................................................................................................................................................................Not recommended
Marking................................... Manufacturer’s name and part number, resistance value and tolerance, linearity tolerance, wiring diagram, and date code.
Ganging (Multiple Section Potentiometers) ................................................................................................................................................... 2 cups maximum
Hardware ..............................................................................One lockwasher (H-37-2) and one mounting nut (H-38-2) is shipped with each potentiometer.
1
At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
2
Consult manufacturer for complete specification details.
Recommended Part Numbers
Part Number
Resistance (Ω)
Resolution (%)
Part Number
Resistance (Ω)
3500S-1-102L
3500S-1-502L
3500S-1-103L
3500S-2-102L
3500S-2-502L
3500S-2-103L
1,000
5,000
10,000
1,000
5,000
10,000
.030
.018
.019
.030
.018
.019
3501H-1-102L
3501H-1-502L
3501H-1-103L
1,000
5,000
10,000
BOLDFACE
LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
ROHS IDENTIFIER:
L = COMPLIANT
BLANK = NON-COMPLIANT
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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