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Features
■ Bushing mount
■ Excellent resolution
■ Non-standard features and speci?cations available
■ Small diameter
■ High rotational life
■ RoHS compliant*
3700/3701 - Precision Potentiometer
Electrical Characteristics 1
3700 Wirewound Element
3701 Hybritron ? Element
Schematic
Standard Resistance Range................ 100 to 100 K ohms .....................1 K to 100 K ohms
Total Resistance Tolerance.................. ±5 % ...........................................±10 %
CCW
CW
Independent Linearity .......................... ±0.25 % ......................................±0.25 %
Effective Electrical Angle ..................... 3600 ° +10 °, -0 ° .......................3600 ° +10 °, -2 °
Absolute Minimum Resistance/ ........... 1 ohm or 0.1 % maximum ..........Minimum voltage
Minimum Voltage (whichever is greater) 0.2 % maximum
2
1
3
CW
Noise .................................................. 100 ohms ENR maximum ..........Output smoothness 0.1 %
maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ......................................... 1,000 VAC minimum ..................1,000 VAC minimum
Recommended Part Numbers
Power Rating (Voltage Limited By Power Dissipation or 315 VAC, Whichever Is Less)
+70 °C.............................................. 1 watt..........................................1 watt
+125 °C............................................ 0 watt..........................................0 watt
Insulation Resistance (500 VDC) ........ 1,000 megohms minimum ..........1,000 megohms minimum
Resolution............................................ See recommended part nos. .....Essentially in?nite
Environmental Characteristics 1
Part
Number
3700S-1-102L
3700S-1-202L
3700S-1-502L
3700S-1-103L
Resistance
( Ω )
1,000
2,000
5,000
10,000
Resolution
(% Max.)
0.05
0.04
0.04
0.03
Operating Temperature Range ............ +1 °C to +125 °C ........................+1 °C to +105 °C
Storage Temperature Range ............... -65 °C to +125 °C .......................-55 °C to +105 °C
Temperature Coef?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
Shock................................................... 100 G .........................................100 G
Wiper Bounce .................................. 0.1 millisecond maximum ...........0.1 millisecond maximum
Part Number
3701H-1-102L
3701H-1-202L
3701H-1-502L
3701H-1-103L
Resistance ( Ω )
1,000
2,000
5,000
10,000
Load Life .............................................. 1,000 hours, 1 watt.....................1,000 hours, 1 watt
Total Resistance Shift ...................... ±2 % maximum ..........................±5 % maximum
Rotational Life (No Load)..................... 1,000,000 shaft revolutions 2 .....4,000,000 shaft revolutions 2
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 40 ...........................................IP 40
Mechanical Characteristics 1
Stop Strength.......................................................................................... 14 N-cm (20 oz-in.) minimum
Mechanical Angle ......................................................................................................3600 ° +20 °, -0 °
Torque (Starting & Running) .....................................................................0.45 N-cm (0.6 oz.-in.) max.
Mounting ..................................................................................... 170-200 N-cm (15-18 lb.-in.) max.
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 solderlugs (3700) or gold-plated turret lugs (3701)
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 ?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 Pots.) ................................................................................. 1 cup maximum
Hardware ................................................... One lockwasher (H-37-1) and one mounting unit (H-38-1)
is shipped with each potentiometer.
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
ROHS IDENTIFIER:
L = COMPLIANT*
Asia-Paci?c:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
EMEA:
Tel: +36 88 520 390
Fax: +36 88 520 211
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
www.bourns.com
1 At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
2 Consult manufacturer for complete speci?cation details.
REV. 11/13
“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.
Speci?cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their speci?c applications.
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