6657_11 Datasheet, PDF (1/2 Pages) Bourns Electronic Solutions – Precision Potentiometer

*RoHS ^COMPLIANT
Features
■ Bushing mount
■ Shaft supported by front sleeve bearing
■ Non-standard features and specifications available
6657 - 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 %
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 ................................................................................................................................ 1.5 watts
+125 °C....................................................................................................................................0 watt
Insulation Resistance (500 VDC) ................................................................ 1,000 megohms minimum
Resolution ................................................................................................................Essentially infinite
Product Dimensions
1.57
(.062)
16.46 ± .38
(.648 ± .015)
33.34
(1-5/16)
DIA.
10.317+.000/-.051
(.4062+.000/-.002)
DIA. SHAFT
3/8 "-32 UNEF-2ATHD
6.345 +.000/-.008
(.2498 +.0000/-.0003)
DIA. SHAFT
45 ° ± 5 °
X ^.38
(.015)
CHAMFER
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, 1.5 watts
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
9.53 ± .79
(3/8± 1/32)
3.18
22.23 ± .79
(1/8)
(7/8 ± 1/32)
SHAFT SLOT
1.19
(.047)
WIDE
X
1.60
(.063)
DEEP
B^OURNS
2
CW
3
1
6.35
(.25) ^R
30 ° ± 3 °
TYP.
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 ° maximum
Weight ........................................................................................................................................ 32 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 cup 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.}
TOLERANCES: EXCEPT WHERE NOTED
DECIMALS: .XX ±
.51
(.02),
.XXX
±
.13
(.005)
FRACTIONS: ±1/64
DIMENSIONS: ^MM
(IN.)
2 ^WIPER
CCW ₁
CLOCKWISE
3 CW
Recommended Part Numbers
Part Number*
6657S-1-102
6657S-1-202
6657S-1-502
6657S-1-103
Resistance (Ω)
1,000
2,000
5,000
10,000
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
ROHS IDENTIFIER:
L = COMPLIANT
BLANK = NON-COMPLIANT
*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