features in nite resolution element standard linearity: 1.0 % extended temperature range: -65 ? to +125 ? extended life version (6538) output smoothness: 0.1 % standard molded-in rear terminals non-standard features and speci cations available 6537/6538 - 22 mm precision potentiometer *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 perfor mance may vary over time. users should verify actual device performance in their speci c applications. electrical characteristics 1 6537 6538 standard resistance range................ 1 k to 100 k ohms......................1 k to 100 k ohms total resistance tolerance .................. ?0 % .........................................?0 % independent linearity .......................... ? % ...........................................? % effective electrical angle ..................... 340 ?? ?...................................340 ?? 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 ? .............................................. 1 watt..........................................1 watt +125 ? ............................................ 0 watt..........................................0 watt insulation resistance (500 vdc) ........ 1,000 megohms minimum ..........1,000 megohms minimum resolution............................................ essentially in nite.......................essentially in nite environmental characteristics 1 operating temperature range ............ -40 ? to +125 ? .......................-40 ? to +125 ? storage temperature range ............... -65 ? to +125 ? .......................-65 ? to +125 ? temperature coef cient over storage temperature range ...... ?00 ppm/? maximum..............?00 ppm/? maximum vibration .............................................. 15 g ...........................................15 g wiper bounce .................................. 0.1 millisecond maximum ...........0.1 millisecond maximum total resistance shift ...................... ? % maximum ..........................? % maximum voltage ratio shift ........................... ?.5 % maximum .......................?.5 % maximum shock................................................... 50 g ...........................................50 g wiper bounce .................................. 0.1 millisecond maximum ...........0.1 millisecond maximum total resistance shift ...................... ? % maximum ..........................? % maximum voltage ratio shift ........................... ?.5 % maximum .......................?.5 % maximum load life .............................................. 1,000 hours, 1 watt.....................1,000 hours, 1 watt total resistance shift ...................... ?0 % maximum ........................?0 % maximum rotational life (no load)..................... 10,000,000 shaft revolutions ......20,000,000 shaft revolutions total resistance shift ...................... ?0 % maximum ........................?0 % maximum moisture resistance (mil-std-202, method 106) total resistance shift ...................... ?5 % maximum ........................?0 % maximum ip rating .............................................. ip 40 ...........................................ip 50 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 ? (700 ?) max. for 3 seconds wave soldering ........................................................ 96.5sn/3.0ag/0.5cu solder with no-clean ux 260 ? (500 ?) max. for 5 seconds wash processes ..................................................................................................not recommend ed 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 1 at room ambient: +25 ? nominal and 50 % relative humidity nominal, except as noted. product dimensions boldface listings are in stock and readily available through distribution. for other options consult factory. recommended part numbers *rohs compliant part number resistance ( ) 6538s-1-102 1,000 6538s-1-202 2,000 6538s-1-502 5,000 6538s-1-103 10,000 part number resistance ( ) 6537s-1-102 1,000 6537s-1-502 5,000 6537s-1-103 10,000 6537 1 3 cw clockwise ccw 2 wiper 6538 ball bearing 45 ?5 ? x 12.70 ?.80 (.375 ?.031) 12.70 ?.38 (.500 ?.015) 1.57 (.062) 1.57 (.062) 1.57 (.062) 3.170+.000/-.008 (.1248+.0000/-.0003) dia. .25 (.010) chamfer 22.23 (.875) dia. 3.18 (.125) .51 (.020) ref. 19.050+.000/-.012 (.75+.0000/-.0005) dia. 19.81 (.780) dia. 30 ? 3 ? typ. 4.80 (.19) r 45 ?5 ? r 5.08 (.020) tolerances: except where noted ?25 ?13 decimals: .xx ?.020), .xxx ?.005) fractions: 1/64 mm dimensions: (in.) 12.70 ?.38 (.475 ?.015) 12.70 ?.38 (.500 ?.031) 1.57 (.062) 1.57 (.062) 1.57 (.062) 45 ?15 ? x .25 (.010) chamfer 22.23 0.38 (.875 .015) dia. 3.18 0.38 (.125 .015) .51 (.020) ref. 19.81 (.780) dia. 19.050+.000/-.012 (.75+.0000/-.0005) dia. rev. 01/14
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