6539/6639 - precision potentiometer *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. features essentially infinite resolution excellent rotational life high quality, rugged construction general purpose applications non-standard features available cost and space saving electrical characteristics 1 6539 servo mount 6639 bushing mount standard resistance range ..............1 k to 100 k ohms ..................1 k to 100 k ohms total resistance tolerance ................15 % ......................................15 % independent linearity ........................2.0 % ......................................2.0 % 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 ............................................1.0 watt ....................................1.0 watt +125 c ..........................................0 watt........................................0 watt insulation resistance (500 vdc) ........500 megohms minimum ..........500 megohms minimum resolution ..........................................essentially infinite ....................essentially infinite environmental characteristics 1 operating temperature range ..........+1 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 ....................10 % ......................................10 % voltage ratio shift..........................0.5 % ......................................0.5 % shock..................................................50 g ..........................................50 g wiper bounce ................................0.1 millisecond maximum ........0.1 millisecond maximum total resistance shift ....................5 % ........................................5 % voltage ratio shift..........................0.5 % ......................................0.5 % load life ............................................1,000 hours, 1 watt ..................1,000 hours, 1 watt total resistance shift ....................10 % ......................................10 % rotational life (no load)....................10,000,000 shaft revolutions ....10,000,000 shaft revolutions total resistance shift ....................10 % maximum ......................10 % maximum moisture resistance (mil-std-202, method 106) total resistance shift ....................15 % ......................................15 % ip rating ............................................ip 40 ........................................ip 40 mechanical characteristics 1 mechanical angle ..........................................................continuous, stops (340 +8 , -0 ) available torque (starting & running) 2 .....................................................................0.40 n-cm (0.5 oz.-in.) max. mounting.............................................................................170-200 n-cm (15-18 lb.-in.) maximum shaft runout..................................................................................................0.13 mm (0.005 in .) t.i.r. lateral runout ...............................................................................................0.08 mm (0.003 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. pilot diameter runout .................................................................................0.06 mm (0.0025 in.) t.i. r. backlash ....................................................................................................................... .0.1 o maximum weight ........................................................18 gm (6539 servo mount), 24 gm (6639 bushing mount) 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 .................................................manufacturers name and part number, resistance value and tolerance, linearity tolerance, wiring diagram, and date code. ganging (multiple section pots) ..................................................................................1 cup maximum hardware (6639 only)..................................one lockwasher (h-37-2) and one mounting nut (h-38-2) is shipped with potentiometer. recommended part numbers 1 at room ambient: +25 ? nominal and 50 % relative humidity, except as noted. 2 2.82 n-cm (4.0 oz.-in.) max. at -40 ?. part number resistance ( ? ) 6539s-1-102 1,000 6539s-1-502 5,000 6539s-1-103 10,000 part numbers resistance continuous turn mechanical stops ( ? ) 6639s-1-102 6639s-301-102 1,000 6639S-1-202 2,000 6639s-1-502 6639s-301-502 5,000 6639s-1-103 6639s-301-103 10,000 6639s-1-203 20,000 boldface listings are in stock and readily available through distribution. for other options consult factory. b o u r n s 31 2 30 3 typ. cw 65/6639 6539 6639 3/8 " - 32 unef 1 3 cw clockwise ccw 2 wiper 12.70 .38 (.500 .015) 3.170 +.000/-.008 (.1248+.0000/-.0003) dia. shaft 45 5 x (.010) chamfer .25 1.57 (.062) 1.57 (.062) 1.57 (.062) 19.050+ 000/-.012 (.750+.0000/-.0005) 19.81 (.780) dia. .51 (.020) ref 12.70 .79 (.500 .031) 3.18 (.125) 22.23 (.875) dia. 11.25 .38 (.443 .015) 1.57 (.062) 22.23 (.875) dia. 6.342+.000/-.008 (.2497+.0000/-.0003) dia. shaft 45 5 (.010) chamfer .25 slot (.047) x (.063) 1.19 1.60 10.317+.000/-.051 (.4062+.000/-.002) dia. 3.18 (.125) .25 (.010) ref 9.53 .79 (.375 .031) 22.23 .76 (.875 .03) r 4.83 (.19) tolerances: except where noted .51 .13 decimals: .xx (.020) .xxx (.005) fractions: 1/64 mm dimensions: (in.) product dimensions *rohs compliant
specifications are subject to change without notice. customers should verify actual device performance in their specific applications. rev. 10/08 6539/6639 - precision potentiometer panel pot lockwasher hex nut 2.46 - 3.81 (.097 - .150) panel thickness dimensions 1.60 +.08/-.03 (.063 +.003/-.001) 10.41 .08 (.410 .003) dia. dia. additional hole for antirotation pin 7.42 (.292) r mm (inches) dimensions: tolerances: 0.127 (.005) (for bushing mount only)
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