PL
IA
Features
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NT
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Infinite resolution element
Standard linearity: 1.0 %
Extended temperature range:
-65 °C to +125 °C
Extended life version (6538)
Output smoothness: 0.1 % standard
*R
oH
S
Molded-in rear terminals
Non-standard features and
specifications available
CO
M
6537/6538 - 22 mm Precision Potentiometer
Electrical Characteristics
1
6537
6538
Product Dimensions
6537
12.70 ± .38
(.500 ± .015)
1.57
(.062)
1.57
(.062)
3.170+.000/-.008 DIA.
(.1248+.0000/-.0003)
.25
45 ° ± 5 ° x
CHAMFER
(.010)
1.57
(.062)
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)
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
22.23
(.875)
DIA.
Environmental Characteristics
1
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
Over Storage Temperature Range ......±500 ppm/°C maximum ..........±500 ppm/°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)
Total Resistance Shift ....................±15 % maximum ......................±10 % maximum
IP Rating ............................................IP 40 ........................................IP 40
3.18
(.125)
.51
REF.
(.020)
19.050+.000/-.012
(.75+.0000/-.0005)
DIA.
12.70 ± .80 19.81
(.500 ± .031) (.780)
DIA.
4.80
R
(.19)
30 ° ± 3 °
TYP.
6538 BALL BEARING
1.57
(.062)
12.07 ± .38
(.475 ± .015)
1.57
(.062)
1.57
(.062)
Mechanical Characteristics
1
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
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 Pots.) .................................................................................1 cup maximum
Hardware ............................................................................................................No hardware included
.25
45 ° ± 15 ° x
(.010)
CHAMFER
22.23 ± 0.38
(.875 ± .015)
DIA.
.51
REF.
(.020)
19.050+.000/-.012
(.75+.0000/-.0005)
DIA.
12.70 ± .38
(.500 ± .031)
19.81
(.780)
DIA.
3.18 ± 0.38
(.125 ± .015)
5.08
R
(.020)
Recommended Part Numbers
Part Number
6537S-1-102
6537S-1-502
6537S-1-103
Resistance
(Ω)
1,000
5,000
10,000
Part Number
6538S-1-102
6538S-1-202
6538S-1-502
6538S-1-103
Resistance
(Ω)
1,000
2,000
5,000
10,000
45 ° ± 5 °
TOLERANCES: EXCEPT WHERE NOTED
.25
.13
DECIMALS: .XX ±
.XXX ±
(.020),
(.005)
FRACTIONS: ±1/64
MM
DIMENSIONS:
(IN.)
2
CCW
WIPER
BOLDFACE
LISTINGS ARE IN STOCK AND READILY AVAILABLE THROUGH DISTRIBUTION.
FOR OTHER OPTIONS CONSULT FACTORY.
1
1
CLOCKWISE
3
CW
At room ambient: +25 °C nominal and 50 % relative humidity, except as noted.
REV. 10/08
*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.
