6638S-1-104 Bourns Inc., 6638S-1-104 Datasheet
6638S-1-104
Manufacturer Part Number
6638S-1-104
Description
Precision Potentiometers 100K 10% 7/8 Bushing Mount
Manufacturer
Bourns Inc.
Type
Potentiometerr
Datasheet
1.6638S-1-104.pdf
(1 pages)
Specifications of 6638S-1-104
Resistance
100kohm
Power Rating
1W
Tolerance (+ Or -)
10%
Number Of Turns
1Turn
Mounting Style
Panel
Termination Style
Turret
Operating Temp Range
1C to 125C
Failure Rate
Not Required
Shaft Diameter (mm)
3.17mm
Product Diameter (mm)
22.23mm
Product Length (mm)
Not Requiredmm
Product Depth (mm)
Not Requiredmm
Temperature Coefficient
±500
Tolerance
10 %
Shaft Type
Slotted
Shaft Length
22.23 mm
Shaft Diameter
3.17 mm
Dimensions
22.23 mm Dia.
Product
Precision Potentiometers
Lead Free Status / RoHS Status
Compliant
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)
Power Rating (Voltage Limited By Power Dissipation or 300 VAC, Whichever is Less)
Insulation Resistance (500 VDC)..................................................................1,000 megohms minimum
Resolution..................................................................................................................Essentially infinite
Operating Temperature Range...................................................................................+1 °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
Shock .............................................................................................................................................50 G
Load Life .................................................................................................................1,000 hours, 1 watt
Rotational Life (No Load) .........................................................................20,000,000 shaft revolutions
Moisture Resistance (MIL-STD-202, Method 106)
IP Rating ........................................................................................................................................IP 40
Mechanical Angle ................................................................................................................Continuous
Torque (Starting & Running) ............................................................0.18 N-cm (0.25 oz.-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 ...........................................................................................0.08 mm (0.003 in.) T.I.R.
Backlash ........................................................................................................................0.1 º maximum
Weight ..........................................................................................................................................18 gm
Terminals.......................................................................................................................Rear turret type
Soldering Condition
Marking ................................Manufacturer’s name and part number, resistance value and tolerance,
Ganging (Multiple Section Potentiometers) .................................................................1 cup maximum
Hardware ...................................................One lockwasher (H-37-1) and one mounting unit (H-38-1)
1
At room ambient: +25 °C nominal and 50 % relative humidity, except as noted.
Electrical Characteristics
Environmental Characteristics
Mechanical Characteristics
Sea Level .............................................................................................................750 VAC minimum
+70 °C......................................................................................................................................1 watt
+125 °C....................................................................................................................................0 watt
Wiper Bounce ...........................................................................................0.1 millisecond maximum
Total Resistance Shift ..............................................................................................±5 % maximum
Voltage Ratio Shift ................................................................................................±0.5 % maximum
Wiper Bounce ...........................................................................................0.1 millisecond maximum
Total Resistance Shift ..............................................................................................±5 % maximum
Voltage Ratio Shift ................................................................................................±0.5 % maximum
Total Resistance Shift ............................................................................................±10 % maximum
Total Resistance Shift ............................................................................................±10 % maximum
Total Resistance Shift ............................................................................................±10 % maximum
Mounting.............................................................................170-200 N-cm (15-18 lb.-in.) maximum
Manual Soldering................................96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire
Wave Soldering ........................................................96.5Sn/3.0Ag/0.5Cu solder with no-clean flux
Wash processes ..................................................................................................Not recommended
1
1
1
linearity tolerance, wiring diagram, and date code
6638 - Precision Potentiometer
Features
7/8 ” (22 mm) diameter single-turn
conductive plastic
Bushing mount
Excellent resolution
High rotational life – ball bearing
shaft support
is shipped with each potentiometer.
370 °C (700 °F) max. for 3 seconds
260 °C (500 °F) max. for 5 seconds
Customers should verify actual device performance in their specific applications.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
BOLDFACE LISTINGS ARE IN STOCK AND READILY
AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
22.23
(7/8)
6638
7/8 " (22 mm) DIA.
(.537 ± .015)
DIA.
13.64 ± .38
Recommended Part Numbers
Product Dimensions
6638S-1-102
6638S-1-502
6638S-1-103
Part Numbers
Non-standard features and
specifications available
Specifications are subject to change without notice.
CCW
1
TOLERANCES: EXCEPT WHERE NOTED
DECIMALS: .XX ±
FRACTIONS: ±1/64
DIMENSIONS:
(.062)
(1/8)
1.57
3.18
CLOCKWISE
(.20)
5.08
R
(IN.)
MM
(.015)
2
45 ° ± 5 °
(.281+.000/-.002)
.38
(.02),
7.14 + .00/- .05
.51
WIPER
1/4"-32 UNEF-THD
22.23
(7/8)
(.032)
.XXX ±
3
Resistance
.81
(3/8)
(.1248+.0000/.0003)
9.53
1,000
5,000
10,000
3.170 + .000/-.008
45 ° ± 5° X (.010)
CHAMFER
SHAFT SLOT
WIDE X
(Ω)
2
(.005)
.127
3
DIA.
CW
REV. 10/08
CW
1
(.032)
.81
.25
DEEP
DIA.
Related parts for 6638S-1-104
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
PRECISION POT-7/8" 22MM 1 TURN CP
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
POTENTIOMETER CONDUCTIVE PLASTIC PRECISION, 10K OHMS
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
PRECISION POTENTIOMETER
Manufacturer:
Bourns Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Bourns, Inc.
Datasheet:
Part Number:
Description:
11mm Potentiometer
Manufacturer:
Bourns, Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Bourns, Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Bourns, Inc.
Datasheet:
Part Number:
Description:
Manufacturer:
Bourns, Inc.
Datasheet:
Part Number:
Description:
5/16 Round Trimming Potentiometer
Manufacturer:
Bourns, Inc.
Datasheet:
Part Number:
Description:
4100R Series: Thick Film Moulded DIPs - Resistor Networks
Manufacturer:
Bourns, Inc.
Datasheet: