3500

PL
IA
NT
Features
■ RoHS compliant*
■ Bushing mount
*R
oH
S
CO
M
■ Sealable
■ Non-standard features and specifications
available
■ Optional high torque feature
■ Optional center tap feature
■ Gangable
3500/3501 - Precision Potentiometer
Electrical Characteristics1
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 Characteristics1
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 Range2 .............................................. ±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 revolutions2 .......................... 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 Characteristics1
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.
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
3500S-1-102L
3500S-1-502L
3500S-1-103L
3500S-2-102L
3500S-2-502L
3500S-2-103L
Resistance (Ω)
Resolution (%)
1,000
5,000
10,000
1,000
5,000
10,000
.030
.018
.019
.030
.018
.019
Part Number
3501H-1-102L
3501H-1-502L
3501H-1-103L
Resistance (Ω)
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
“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.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
3500/3501 - Precision Potentiometer
Product Dimensions
Panel Thickness Dimensions
3500S
3501H
WIPER 5.46 ± .76
(.215 ± .030)
CCW
3/8 "-32 2A THD UNEF
.25
X 45 ° CHAMFER
(.010)
10.32 + .00/ - .05
(.4062+.000/-.002)
PILOT DIA.
1.52
(.06)
CW
23.62 ± .25
(.930 ± .010)
20.50 ± .38
(.807 ± .015)
2.54
(.10)
MIN.
WIPER
CW
CCW
3/8 "-32 2A THD UNEF
.25
X 45 ° CHAMFER
(.010)
10.32 + .00/ - .05
(.4062+.000/-.002)
PILOT DIA.
1.52
(.06)
PANEL
HEX NUT
.6.34 + .00/- .01
DIA.
(.249+.0000/-.0003)
8.0 ± .38
(.315 ± .015)
25.4 ± .51
(1.00 ± .02)
12.7
REF.
(1/2)
12.7
REF.
(1/2)
20.64 ±.79
(13/16 ± 1/32)
25.4 ± .51
(1.00 ± .02)
45 ° ± 5 °
8.9
(.35)
45 ° ± 5 °
.6.34 + .00/- .01
DIA.
(.249+.0000/-.0003)
8.0 ± .38
(.315 ± .015)
20.64 ±.79
(13/16 ± 1/32)
22.23
(7/8)
11/16
(17.46)
3500S-2-RC
13/16
(20.64)
3501H-1-RC
13/16
(20.64)
.49
(12.45)
LOCATION OF OPTIONAL
7.37
A/R PIN ON
R
(.29)
ADJUSTMENT SLOT
.81
WIDE X
(.032)
.81 ± .25
DEEP
(.032 ± .010)
10.44 ± .07
DIA.
(.411 ± .003)
R
7.42
(.292)
ADDITIONAL HOLE FOR
ANTI-ROTATION PIN
1.60 +.08/-.03
DIA.
(.063 +.003/-.001)
Panel thickness and hole diameters are
recommended for best fit. However, customers
may adjust the dimensions to suit their specific
application.
WIPER
3
1
R MAX.
16.0
(.63)
Anti-rotation pin hole is shown at six o'clock
position for reference only. The actual location is
determined by the customer's application. Refer
to the front view of the potentiometer to see the
location of the optional A/R pin.
TOLERANCES: EXCEPT WHERE NOTED
.25
.13
DECIMALS: .XX ±
.XXX ±
(.010),
(.005)
FRACTIONS: ±1/64
MM
DIMENSIONS:
(IN.)
2
POT
8.9
(.35)
22.23
(7/8)
NOTE: SHAFT LENGTH VARIATIONS
3500S-1-RC
.76
(.03)
.467
(.184)
LOCKWASHER
.76
45 ° ± 5 °
(.03)
45 ° ± 5 °
LOCATION OF OPTIONAL
7.37
A/R PIN ON
R
(.29)
ADJUSTMENT SLOT
.81
WIDE X
(.032)
.81 ± .25
DEEP
(.032 ± .010)
16.0
(.63) R
MAX.
CCW
2.46 - 3.81
(.097 - .150)
CW
DIMENSIONS:
MM
(INCHES)
TOLERANCES: ±
0.127
(.005)
CLOCKWISE
REV. 06/12
“Hybritron” is a registered trademark of Bourns, Inc.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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