6637S-1-203 Datasheet, PDF (1/3 Pages) Bourns Electronic Solutions – 6637 - Precision Potentiometer

*RoHS ^COMPLIANT
Features
■ Bushing mount
■ Excellent resolution
■ High rotational life
■ Non-standard features and specifications available
6637 - Precision Potentiometer
Electrical Characteristics¹
Standard Resistance Range....................................................................................1 K to 100 K ohms
Total Resistance Tolerance......................................................................................................... ±10 %
Independent Linearity ................................................................................................................... ±1 %
Effective Electrical Angle .......................................................................................................340 ° ±3 °
End Voltage .................................................................................................................0.5 % maximum
Output Smoothness.....................................................................................................0.1 % maximum
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level.............................................................................................................750 VAC minimum
Power Rating (Voltage Limited By Power Dissipation or 300 VAC, Whichever is Less)
+70 °C......................................................................................................................................1 watt
+125 °C....................................................................................................................................0 watt
Insulation Resistance (500 VDC) ................................................................ 1,000 megohms minimum
Resolution.................................................................................................................Essentially infinite
Environmental Characteristics¹
Operating Temperature Range ................................................................................. -40 °C to +125 °C
Storage Temperature Range .................................................................................... -65 °C to +125 °C
Temperature Coefficient Over Storage Temperature Range ...........................±500 ppm/°C maximum
Vibration ........................................................................................................................................15 G
Wiper Bounce ........................................................................................... 0.1 millisecond maximum
Total Resistance Shift ...............................................................................................±5 % maximum
Voltage Ratio Shift .................................................................................................±0.5 % maximum
Shock.............................................................................................................................................50 G
Wiper Bounce ........................................................................................... 0.1 millisecond maximum
Total Resistance Shift ...............................................................................................±5 % maximum
Voltage Ratio Shift .................................................................................................±0.5 % maximum
Load Life.................................................................................................................1,000 hours, 1 watt
Total Resistance Shift .............................................................................................±10 % maximum
Rotational Life (No Load)......................................................................... 10,000,000 shaft revolutions
Total Resistance Shift .............................................................................................±10 % maximum
Moisture Resistance (MIL-STD-202, Method 106)
Total Resistance Shift .............................................................................................±15 % maximum
IP Rating....................................................................................................................................... IP 40
Mechanical Characteristics¹
Stop Strength.................................................................................................53 N-cm (75 oz.-in.) min.
Mechanical Angle ............................................................................................................... Continuous
Torque (Starting & Running) ............................................................. 0.40 N-cm (0.5 oz.-in.) maximum
Mounting ..............................................................................170-200 N-cm (15-18 lb.-in.) maximum
Shaft Runout...............................................................................................0.025 mm (0.001 in.) T.I.R.
Shaft End Play..............................................................................................0.13 mm (0.005 in.) T.I.R.
Shaft Radial Play ..........................................................................................0.13 mm (0.005 in.) T.I.R.
Backlash ....................................................................................................................... 0.1 º maximum
Weight ........................................................................................................................................ 16 gm
Terminals ..................................................................................................................... Rear turret type
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) ...................................................................1 up 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.}
Product Dimensions
6637
7/8 " (22 mm) DIA.
B^OURNS
2
CW
3
1
4.83
(.19)
R
1.57
11.25 .38 ^(.062)
(.443 .015)
22.23
(7/8)
DIA.
30 3
TYP.
10.317 + .000/- .051
(.4062+.000/-.002)
DIA.
3/8-32 UNEF-THD
3.170 + .000/-.008
(.1248+.0000/-.0003)
DIA.
45 5
X
.25
(.010)
CHAMFER
9.53 .79
3.18
(3/8 1/32)
(1/8)
22.23 .79
(7/8 1/32)
SHAFT SLOT
.81
(.032)
WIDE
X
.81
(.032)
DEEP
NOTE: SHAFT SUPPORTED BY FRONT SLEEVE BEARING.
2 ^WIPER
CCW ₁
CLOCKWISE
3 CW
Recommended Part Numbers
Part Number
6637S-1-102
6637S-1-502
6637S-1-103
Resistance (Ω)
1,000
5,000
10,000
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR SERVO MOUNT VERSION AND OTHER OPTIONS
CONSULT FACTORY.
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications