Features
■ Bushing mount
■ Excellent resolution
■ Non-standard features and specifications available
■ Small diameter
■ High rotational life
■ RoHS compliant*
3700/3701 - Precision Potentiometer
®
1
Schematic
CCW
Electrical Characteristics
3700 Wirewound Element 3701 Hybritron Element
Standard Resistance Range................100 to 100 K ohms.....................1 K to 100 K ohms
Total Resistance Tolerance..................±± ꢀ...........................................±10 ꢀ
Independent Linearity..........................±0.ꢁ± ꢀ......................................±0.ꢁ± ꢀ
Effective Electrical Angle .....................3600 ° +10 °, -0 ° .......................3600 ° +10 °, -ꢁ °
Absolute Minimum Resistance/...........1 ohm or 0.1 ꢀ maximum..........Minimum voltage
CW
3
2
1
CW
Minimum Voltage
(whichever is greater)
0.ꢁ ꢀ maximum
Noise ..................................................100 ohms ENR maximum..........Output smoothness 0.1 ꢀ
maximum
Dielectric Withstanding Voltage (MIL-STD-ꢁ0ꢁ, Method 301)
Recommended Part Numbers
Sea Level.........................................1,000 VAC minimum ..................1,000 VAC minimum
Power Rating (Voltage Limited By Power Dissipation or 31± VAC, Whichever Is Less)
+70 °C..............................................1 watt..........................................1 watt
+1ꢁ± °C............................................0 watt..........................................0 watt
Insulation Resistance (±00 VDC) ........1,000 megohms minimum..........1,000 megohms minimum
Resolution............................................See recommended part nos. .....Essentially infinite
Part
Resistance
Resolution
Number
(Ω)
(% Max.)
0.05
3700S-1-102L
3700S-1-202L
3700S-1-502L
3700S-1-103L
1,000
2,000
5,000
10,000
0.04
0.04
0.03
1
Environmental Characteristics
Operating Temperature Range............+1 °C to +1ꢁ± °C........................+1 °C to +10± °C
Storage Temperature Range ...............-6± °C to +1ꢁ± °C.......................-±± °C to +10± °C
Temperature Coefficient Over
Part Number
3701H-1-102L
3701H-1-202L
3701H-1-502L
3701H-1-103L
Resistance (Ω)
1,000
ꢁ
Storage Temperature Range .........±±0 ppm/°C maximum/unit.........±100 ppm/°C maximum/unit
2,000
5,000
Vibration ..............................................ꢁ0 G ...........................................ꢁ0 G
Wiper Bounce..................................0.1 millisecond maximum...........0.1 millisecond maximum
Shock...................................................100 G .........................................100 G
10,000
Wiper Bounce..................................0.1 millisecond maximum...........0.1 millisecond maximum
Load Life..............................................1,000 hours, 1 watt.....................1,000 hours, 1 watt
Total Resistance Shift......................±ꢁ ꢀ maximum ..........................±± ꢀ maximum
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
ꢁ
ꢁ
Rotational Life (No Load).....................1,000,000 shaft revolutions .....4,000,000 shaft revolutions
FOR OTHER OPTIONS CONSULT FACTORY.
Total Resistance Shift......................±± ꢀ maximum ..........................±± ꢀ maximum
Moisture Resistance (MIL-STD-ꢁ0ꢁ, Method 103, Condition B)
ROHS IDENTIFIER:
L = COMPLIANT*
Total Resistance Shift......................±ꢁ ꢀ maximum ..........................±± ꢀ maximum
IP Rating..............................................IP 40...........................................IP 40
1
Mechanical Characteristics
Stop Strength..........................................................................................14 N-cm (ꢁ0 oz-in.) minimum
Mechanical Angle ......................................................................................................3600 ° +ꢁ0 °, -0 °
Torque (Starting & Running).....................................................................0.4± N-cm (0.6 oz.-in.) max.
Mounting..................................................................................... 170-ꢁ00 N-cm (1±-18 lb.-in.) max.
Shaft Runout.................................................................................................0.0± mm (0.00ꢁ in.) T.I.R.
Lateral Runout..............................................................................................0.13 mm (0.00± in.) T.I.R.
Shaft End Play..............................................................................................0.13 mm (0.00± in.) T.I.R.
Shaft Radial Play..........................................................................................0.08 mm (0.003 in.) T.I.R.
Pilot Diameter Runout ..................................................................................0.0± mm (0.00ꢁ in.) T.I.R.
Backlash....................................................................................................................... 1.0 ° maximum
Weight .................................................................................................................Approximately ꢁ8 gm
Terminals ............................................Gold-plated solderlugs (3700) or gold-plated turret lugs (3701)
Soldering Condition
Asia-Pacific:
Tel: +886-2 2562-4117
Fax: +886-2 2562-4116
Manual Soldering.................................96.±Sn/3.0Ag/0.±Cu solid wire or no-clean rosin cored wire
370 °C (700 °F) max. for 3 seconds
EMEA:
Wave Soldering ........................................................ 96.±Sn/3.0Ag/0.±Cu solder with no-clean flux
ꢁ60 °C (±00 °F) max. for ± seconds
Tel: +36 88 520 390
Fax: +36 88 520 211
Wash processes ..................................................................................................Not recommended
Marking................................................. Manufacturer’s name and part number, resistance value and
tolerance, linearity tolerance, wiring diagram, and date code
The Americas:
Tel: +1-951 781-5500
Fax: +1-951 781-5700
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.
www.bourns.com
1
At room ambient: +ꢁ± °C nominal and ±0 ꢀ relative humidity nominal, except as noted.
Consult manufacturer for complete specification 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.
Specifications 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 specific applications.
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