S N R Features Essentially in nite resolution Excellent rotational life High quality, rugged construction General purpose applications Non-standard features available Cost and space saving 6539/6639 - Precision Potentiometer 1 Electrical Characteristics 6539 Servo Mount 6639 Bushing Mount Product Dimensions Standard Resistance Range................1 K to 100 K ohms......................1 K to 100 K ohms 6539 3.170 +.000/-.008 12.70 .38 Total Resistance Tolerance ..................15 % .........................................15 % (.1248+.0000/-.0003) (.500 .015) Independent Linearity ..........................2.0 % ........................................2.0 % 1.57 DIA. SHAFT Effective Electrical Angle .....................340 +3 ...................................340 +3 .25 (.062) 45 5 x (.010) End Voltage .........................................0.5 % maximum .........................0.5 % maximum 1.57 CHAMFER Output Smoothness .............................0.1 % ..........................................0.1 % (.062) 19.050+ 000/-.012 Dielectric Withstanding Voltage (MIL-STD-202, Method 301) 1.57 Sea Level .........................................750 VAC minimum .....................750 VAC minimum (.750+.0000/-.0005) (.062) Power Rating (Voltage Limited By Power Dissipation or 300 VAC, Whichever is Less) +70 C ..............................................1.0 watt.......................................1.0 watt +125 C ............................................0 watt..........................................0 watt 22.23 Insulation Resistance (500 VDC) ........500 megohms minimum .............500 megohms minimum (.875) 19.81 Resolution............................................Essentially in nite.......................Essentially in nite DIA. (.780) DIA. 1 Environmental Characteristics .51 (.020) Operating Temperature Range ............+1 C to +125 C ........................-40 C to +125 C REF Storage Temperature Range ...............-65 C to +125 C .......................-65 C to +125 C Temperature Coef cient 12.70 .79 3.18 Over Storage Temperature Range ......500 ppm/C maximum..............500 ppm/C maximum (.500 .031) (.125) Vibration ..............................................15 G ...........................................15 G Wiper Bounce ..................................0.1 millisecond maximum ...........0.1 millisecond maximum 6639 11.25 .38 10.317+.000/-.051 Total Resistance Shift ......................10 % .........................................10 % DIA. (.443 .015) (.4062+.000/-.002) Voltage Ratio Shift ...........................0.5 % ........................................0.5 % 6.342+.000/-.008 Shock...................................................50 G ...........................................50 G 1.57 (.2497+.0000/-.0003) Wiper Bounce ..................................0.1 millisecond maximum ...........0.1 millisecond maximum (.062) DIA. SHAFT Total Resistance Shift ......................5 % ...........................................5 % .25 Voltage Ratio Shift ...........................0.5 % ........................................0.5 % 45 5 x CHAMFER (.010) Load Life ..............................................1,000 hours, 1 watt.....................1,000 hours, 1 watt 1.19 1.60 SLOT X Total Resistance Shift ......................10 % .........................................10 % 22.23 (.047) (.063) Rotational Life (No Load).....................10,000,000 shaft revolutions ......10,000,000 shaft revolutions (.875) Total Resistance Shift ......................10 % maximum ........................10 % maximum DIA. Moisture Resistance (MIL-STD-202, Method 106) Total Resistance Shift ......................15 % .........................................15 % IP Rating ..............................................IP 40 ...........................................IP 40 .25 1 3/8 - 32 UNEF (.010) Mechanical Characteristics REF 9.53 .79 Mechanical Angle ..........................................................Continuous, Stops (340 +8 , -0 ) available 3.18 (.375 .031) Stop Strength (applies to -301 with mechanical stops only) ..................................22.6 N-cm (2 lb.-in.) (.125) 2 Torque (Starting & Running) ...................................................................0.40 N-cm (0.5 oz.-in.) max. 22.23 .76 Mounting ..............................................................................170-200 N-cm (15-18 lb.-in.) maximum (.875 .03) Shaft Runout.................................................................................................0.13 mm (0.005 in.) T.I.R. Lateral Runout ..............................................................................................0.08 mm (0.003 in.) T.I.R. 65/6639 Shaft End Play ..............................................................................................0.13 mm (0.005 in.) T.I.R. Shaft Radial Play ..........................................................................................0.13 mm (0.005 in.) T.I.R. Pilot Diameter Runout ................................................................................0.06 mm (0.0025 in.) T.I.R. 2 Backlash ....................................................................................................................... 0.1 maximum Weight ....................................................... 18 gm (6539 Servo Mount), 24 gm (6639 Bushing Mount) CW 4.83 R Terminals ................................................................................................................... Rear Turret Type (.19) 31 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 ux 260 C (500 F) max. for 5 seconds 30 3 Wash processes ..................................................................................................Not recommended TYP. Marking ................................................. Manufacturers name and part number, resistance value and TOLERANCES: EXCEPT WHERE NOTED tolerance, linearity tolerance, wiring diagram, and date code51 .13 Ganging (Multiple Section Pots) ..................................................................................1 cup maximum DECIMALS: .XX .XXX (.020) (.005) Hardware (6639 only) .................................One lockwasher (H-37-2) and one mounting nut (H-38-2) FRACTIONS: 1/64 is shipped with potentiometer. MM DIMENSIONS: 1 At room ambient: +25 C nominal and 50 % relative humidity nominal, except as noted. (IN.) 2 2.82 N-cm (4.0 oz.-in.) max. at -40 C. WIPER 2 CCW CW 1 3 CLOCKWISE *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Speci cations 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 speci c applications. U O B *RoHS COMPLIANT 6539/6639 - Precision Potentiometer Recommended Part Numbers Part Number Resistance () Part Numbers Resistance () 6539S-1-102 1,000 Continuous Turn Mechanical Stops BOLDFACE LISTINGS ARE IN STOCK AND READILY 6539S-1-502 5,000 6639S-1-102 6639S-301-102 1,000 AVAILABLE THROUGH DISTRIBUTION. 6539S-1-103 10,000 6639S-1-202 2,000 FOR OTHER OPTIONS CONSULT FACTORY. 6639S-1-502 6639S-301-502 5,000 6639S-1-103 6639S-301-103 10,000 6639S-1-203 20,000 Panel Thickness Dimensions (For Bushing Mount Only) 2.46 - 3.81 (.097 - .150) PANEL HEX NUT 10.44 .07 DIA. (.411 .003) LOCKWASHER POT Panel thickness and hole diameters are recommended for best fit. However, customers may adjust the dimensions to suit their specific application. 0.127 MM DIMENSIONS: TOLERANCES: (.005) (INCHES) REV. 02/15 Speci cations 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 speci c applications.