Features
■ Bushing mount
■ Sealable
■ Non-standard features and specifi cations
available
■ Optional high torque feature
■ Optional center tap feature
■ Gangable
■ RoHS compliant*
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 infi nite
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 Coeffi cient 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 fl ux; 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 specifi cation details.
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
Recommended Part Numbers
Part Number Resistance (Ω) Resolution (%)
3500S-1-102L 1,000 .030
3500S-1-502L 5,000 .018
3500S-1-103L 10,000 .019
3500S-2-102L 1,000 .030
3500S-2-502L 5,000 .018
3500S-2-103L 10,000 .019
Part Number Resistance (Ω)
3501H-1-102L 1,000
3501H-1-502L 5,000
3501H-1-103L 10,000
*RoHS COMPLIANT
“Hybritron” is a registered trademark of Bourns, Inc.
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex
and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
ROHS IDENTIFIER:
L = COMPLIANT
