Features
■ Bushing mount
■ Sealable
■ RoHS compliant*
■ Non-standard features and specifications
available
■ Optional high torque feature
■ Optional center tap feature
■ Gangable
3500/3501 - Precision Potentiometer
3501 Hybritron® Element
1
Electrical Characteristics
3500 Wirewound 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
1
Environmental Characteristics
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
2
Storage Temperature Range .............................................. ±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
2
Rotational Life (No Load)......................................................... 2,000,000 shaft revolutions ..........................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
1
Mechanical Characteristics
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
ROHS IDENTIFIER:
L = COMPLIANT
Part Number
Resistance (Ω)
1,000
5,000
10,000
1,000
Resolution (%)
.030
Part Number
Resistance (Ω)
1,000
3500S-1-102L
3500S-1-502L
3500S-1-103L
3500S-2-102L
3500S-2-502L
3500S-2-103L
3501H-1-102L
3501H-1-502L
3501H-1-103L
5,000
10,000
.018
.019
.030
.018
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
5,000
10,000
.019
FOR OTHER OPTIONS CONSULT FACTORY.
“Hybritron” is a registered trademark of Bourns, Inc.
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
Specifications are subject to change without notice. Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific disclaimers as set forth on the last page of this document, and at www.bourns.com/legal/disclaimer.pdf.