Features
■ Infinite resolution element
■ Standard linearity: 1.0 %
■ Non-standard features and specifications
available
■ Extended temperature range:
-65 °C to +125 °C
■ Extended life version (6538)
■ Output smoothness: 0.1 % standard
■ Molded-in rear terminals
6537/6538 - 22 mm Precision Potentiometer
1
Product Dimensions
Electrical Characteristics
6537
6538
Standard Resistance Range................1 K to 100 K ohms......................1 K to 100 K ohms
Total Resistance Tolerance.................. 10 ꢀ......................................... 10 ꢀ
Independent Linearity.......................... 1 ꢀ........................................... 1 ꢀ
Effective Electrical Angle .....................340 ° 3 ° ...................................340 ° 3 °
End Voltage.........................................0.5 ꢀ maximum .........................0.5 ꢀ maximum
Output Smoothness.............................0.1 ꢀ..........................................0.1 ꢀ
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
6537
12.70 .38
(.500 .015)
1.57
(.062)
3.170+.000/-.008
(.1248+.0000/-.0003)
.25
DIA.
1.57
(.062)
45 5 ° x
CHAMFER
Sea Level.........................................750 VAC minimum .....................750 VAC minimum
Power Rating (Voltage Limited By Power Dissipation or 300 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............................................Essentially infinite.......................Essentially infinite
(.010)
1.57
(.062)
22.23
(.875)
DIA.
.51
(.020)
REF.
1
Environmental Characteristics
19.050+.000/-.012
(.75+.0000/-.0005)
DIA.
Operating Temperature Range............-40 °C to +125 °C.......................-40 °C to +125 °C
Storage Temperature Range ...............-65 °C to +125 °C.......................-65 °C to +125 °C
Temperature Coefficient
3.18
(.125)
Over Storage Temperature Range ...... 500 ppmꢁ°C maximum.............. 500 ppmꢁ°C maximum
Vibration ..............................................15 G ...........................................15 G
Wiper Bounce..................................0.1 millisecond maximum...........0.1 millisecond maximum
Total Resistance Shift...................... 5 ꢀ maximum .......................... 5 ꢀ maximum
Voltage Ratio Shift........................... 0.5 ꢀ maximum ....................... 0.5 ꢀ maximum
Shock...................................................50 G ...........................................50 G
Wiper Bounce..................................0.1 millisecond maximum...........0.1 millisecond maximum
Total Resistance Shift...................... 5 ꢀ maximum .......................... 5 ꢀ maximum
Voltage Ratio Shift........................... 0.5 ꢀ maximum ....................... 0.5 ꢀ maximum
Load Life..............................................1,000 hours, 1 watt.....................1,000 hours, 1 watt
Total Resistance Shift...................... 10 ꢀ maximum ........................ 10 ꢀ maximum
Rotational Life (No Load).....................10,000,000 shaft revolutions......20,000,000 shaft revolutions
Total Resistance Shift...................... 10 ꢀ maximum ........................ 10 ꢀ maximum
Moisture Resistance (MIL-STD-202, Method 106)
19.81
(.780)
DIA.
12.70 .80
(.375 .031)
4.80
(.19)
R
30 3 °
TYP.
6538 BALL BEARING
12.70 .38
(.475 .015)
1.57
(.062)
Total Resistance Shift...................... 15 ꢀ maximum ........................ 10 ꢀ maximum
IP Rating..............................................IP 40...........................................IP 50
1.57
(.062)
.25
(.010)
45 15 ° x
1.57
1
Mechanical Characteristics
CHAMFER
(.062)
Mechanical Angle ................................ Continuous ................................Continuous
Torque (Starting & Running) ..................0.40 N-cm (0.5 oz.-in.) max. ......0.18 N-cm (0.25 oz.-in.) max.
Shaft Runout........................................ 0.025 mm (0.001 in.) T.I.R.........0.025 mm (0.001 in.) T.I.R.
Lateral Runout..................................... 0.08 mm (0.003 in.) T.I.R...........0.08 mm (0.003 in.) T.I.R.
Shaft End Play..................................... 0.13 mm (0.005 in.) T.I.R...........0.13 mm (0.005 in.) T.I.R.
Shaft Radial Play................................. 0.13 mm (0.005 in.) T.I.R...........0.08 mm (0.003 in.) T.I.R.
Pilot Diameter Runout ......................... 0.06 mm (0.0025 in.) T.I.R.........0.06 mm (0.0025 in.) T.I.R.
Backlash.............................................. 0.1 ° maximum...........................0.1 ° maximum
Weight ................................................. 18 gm.........................................18 gm
Terminals......................................................................................................Molded-in rear turret type
Soldering Condition
22.23 0.38
(.875 .015)
DIA.
.51
(.020)
REF.
19.050+.000/-.012
(.75+.0000/-.0005)
DIA.
3.18 0.38
(.125 .015)
12.70 .38
(.500 .031)
19.81
(.780)
DIA.
Manual Soldering.................................96.5Snꢁ3.0Agꢁ0.5Cu solid wire or no-clean rosin cored wire
370 °C (700 °F) max. for 3 seconds
Wave Soldering ........................................................ 96.5Snꢁ3.0Agꢁ0.5Cu solder with no-clean flux
260 °C (500 °F) max. for 5 seconds
5.08
(.020)
R
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........................................................................................................... No hardware included
45 5 °
1
At room ambient: +25 °C nominal and 50 ꢀ relative humidity nominal, except as noted.
TOLERANCES: EXCEPT WHERE NOTED
.25
(.020),
.13
(.005)
DECIMALS: .XX
.XXX
Recommended Part Numbers
FRACTIONS: 1/64
MM
(IN.)
Part Number
6538S-1-102
6538S-1-202
6538S-1-502
6538S-1-103
Resistance (Ω)
1,000
Part Number
Resistance (Ω)
1,000
DIMENSIONS:
6537S-1-102
6537S-1-502
6537S-1-103
2,000
5,000
10,000
5,000
10,000
WIPER
2
CW
CCW
3
1
BOLDFACE LISTINGS ARE IN STOCK AND READILY AVAILABLE THROUGH DISTRIBUTION.
CLOCKWISE
FOR OTHER OPTIONS CONSULT FACTORY.
REV. 01ꢁ14
*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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