3549 - 10-turn precision potentiometer features wirewound and hybritron elements high rotational life optional 0.1 % linearity optional a/r lug rohs compliant* suitable for use under side load designed for hmi and mmi applications dual gang option servo mount option electrical characteristics 1 wirewound element hybritron element standard resistance range ................................................................100 to 100k ohms...................... ............................1k to 100k ohms total resistance tolerance ..................................................................? % ............................... .......................................?0 % independent linearity ..........................................................................?.2 %.......................... ..........................................?.2 % independent linearity (maximum practical) ........................................?.1 %........................................ ............................?.1 % effective electrical angle ....................................................................3600 +10 ? -0 ................ ..................................3600 +10 ? -0 absolute minimum resistance/end voltage ......................................1 ohm or 0.1 % maximum ............................ ........0.2 % maximum (whichever is greater) noise/output smoothness ................................................................100 ohms maximum ....................... .......................0.10 % maximum max. wiper current @ 5k ohms ..........................................................20 ma .................................... ................................10 ma dielectric withstanding voltage (mil-std-202, method 301) sea level ........................................................................................1,000 vac minimum ............. .................................1,000 vac minimum insulation resistance (500 vdc) ........................................................1,000 megohms minimum ................... .................1,000 megohms minimum resolution ................................................................................................see how to order char t ..........................................essentially infinite power rating (voltage limited by power dissipation) +70 ? ............................................................................................2 watts...................... ..............................................2 watts +125 ? ..........................................................................................0 watt ........................ ............................................0 watt environmental characteristics 1 operating temperature range dynamic ..........................................................................................-40 ? to +125 ? ............. .....................................-40 ? to +125 ? static ..............................................................................................-55 ? to +125 ? .......... ........................................-55 ? to +125 ? temperature coefficient (over static temperature range) ................?0 ppm/?.............................................. ..............?00 ppm/? temperature cycling (5 cycles over static temperature range) ......? % tr shift max. ........................................... .....? % tr shift max. vibration (15 gs, 10 hz to 2 khz) wiper bounce..................................................................................0.1 ms max. ...................... ....................................0.1 ms max. shock (100 gs, 6 ms sawtooth) wiper bounce..................................................................................0.1 ms max. ...................... ....................................0.1 ms max. load life (1,000 hours @ 70 ?)..........................................................? % tr shift ......................... ...............................? % tr shift max. rotational life no load ..........................................................................................2,000,000 shaft revolutions .. ................................5,000,000 shaft revolutions powered (mil-prf-12934)..............................................................2,000,000 shaft revolutions .............. ....................5,000,000 shaft revolutions moisture resistance (mil-std-202, method 103) ................................? % tr shift max. ................................ ................? % tr shift max. ip rating ..............................................................................................ip 50 .................... ..................................................ip 50 mechanical characteristics 1 mechanical angle ............................................................................................................... ...........................................................................3600 +4 ? -10 backlash ....................................................................................................................... .............................................................................................1.0 max. stop strength.................................................................................................................. ..............................................................................53 n-cm (75 oz-in.) min. torque starting ....................................................................................................................... .................................................................0.5 n-cm (0.7 oz.-in.) max. running ........................................................................................................................ ..............................................................0.5 n-cm (0.7 oz.-in.) max. mounting....................................................................................................................... ...................................................170-200 n-cm (15-18 in.-lb.) max. shaft runout t.i.r. ............................................................................................................ ..........................................................................0.08 mm (0.003 in.) lateral runout t.i.r. .......................................................................................................... ..........................................................................0.13 mm (0.005 in.) shaft end play t.i.r. .......................................................................................................... ..........................................................................0.15 mm (0.006 in.) shaft radial play t.i.r. ....................................................................................................... .........................................................................0.08 mm (0.003 in.) pilot diameter runout t.i.r. ................................................................................................... .....................................................................0.08 mm (0.003 in.) weight single ......................................................................................................................... .............................................................................20 gm (0.7 oz.) typ. dual ........................................................................................................................... .............................................................................36 gm (1.27 oz) typ. shaft side load (max. allowable) nickel plated brass shaft w/brass bushing ...................................................................................... ..........................................................50 gmf (1.7 ozf) stainless steel shaft w/bronze bushing ......................................................................................... ...........................................................250 gmf (8.8 ozf) terminals ...................................................................................................................... ........................................................................gold-plated solder lugs soldering condition manual soldering ........................................................96.5sn/3.0ag/0.5cu solid wire or no-clean rosin cored w ire, 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 mounting hardware............................................................................................one lockwasher and one mounting nut is shipped with each potentiometer recommended panel thickness (bushing mount) .................................................................................... ..............................2.46-3.81 mm (0.097-0.150 in.) marking ........................................................................................................................ manufacturer s symbol, model number, product code and date code standard packaging............................................................................................................. ...............................................................plastic trays (5 pcs./tray) 1 at room ambient: +25 ? nominal and 50 % relative humidity nominal, except as noted. for other options, please consult factory. *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. *rohs compliant
specifications are subject to change without notice. customers should verify actual device performance in their specific applications. 3549 - 10-turn precision potentiometer product dimensions 30 5 12.649 0.254 (.498 .010) mounting face 16.256 (.640) max. r dia. dia. 22.479 0.812 (.885 .032) 19.812 0.812 (.780 .032) 6.86 0.25 (.270 .010) 1.524 0.254 (.060 .010) 20.617 0.787 (.812 .031) 7.92 0.381 (.312 .015) shaft dimension ? 10.287 + 0.00/-0.05 (.405 +0.00/-.002) 12.7 0.254 (.500 .010) 5.715 0.381 (.225 .015) 0.762 (.030) 0.813 (.032) 14.046 0.381 (.553 .015) 18.446 0.381 (.726 .015) mounting surface bushing type ? adjustment slot: wide x 0.813 (.032) deep 1.499 (.059) optional anti- rotational pin and 7.366 (.290) radius 1.016 (.040) from mounting surface on r 2 1 3 tolerances: except where noted decimals: .xx .xxx .xxxx dimensions: 1 3 cw clockwise ccw 2 wiper .50 (.02) .127 (.005) .0127 (.0005) mm (in) shaft dimension "a" 6.34 +0/-0.022 (0.249 +0/-0.0009) 6.00 +0/-0.022 (0.236 +0/-0.0009) 6.34 +0/-0.007 (0.249 +0/-0.0003) 6.00 +0/-0.007 (0.236 +0/-0.0003) bushing selection code a b c d bushing type "b" 3/8 " 32-unef- 2a thd. m9 x 0.75-8g 3/8 " 32-unef- 2a thd. m9 x 0.75-8g shaft material nickel plated brass nickel plated brass stainless steel stainless steel bushing material brass brass bronze bronze single gang, bushing mount 30 5 12.649 0.254 (.498 .010) mounting face 16.256 (.640) max. r dia. 22.479 0.812 (.885 .032) dia. 6.86 0.25 (.270 .010) 1.52 (.060) 20.643 0.787 (.813 .031) 7.92 0.381 (.312 .015) shaft dimension ? 10.287 + 0.00/-0.05 (.405 +0.00/-.002) 12.7 0.254 (.500 .010) 6.02 0.381 (.237 .015) 0.813 (.032) 14.351 0.381 (.565 .015) 18.796 0.381 (.740 .015) mounting surface bushing type ? adj. slot: wide x 0.813 .0004 (.032 .010) deep 1.499 (.059) optional anti- rotational pin and 7.366 (.290) radius 1.016 (.040) from mounting surface on 26.467 0.762 (1.042 .030) 34.798 0.762 (1.370 .030) 39.243 0.762 (1.545 .030) 40.259 0.762 (1.585 .030) 2 2 1 1 3 3 1 3 cw ccw 1 3 cw clockwise ccw wiper 2 2 dual gang, bushing mount
specifications are subject to change without notice. customers should verify actual device performance in their specific applications. 30 5 16.256 (.640) max. r 22.225 0.381 (.875 .015) dia. 25.222 0.787 (.993 .031) 6.858 0.254 (.270 .010) 1.575 (.062) 1.575 (.062) 1.575 (.062) 9.525 0.787 (.375 .031) 3.1699 + .0000/-.0076 (.1248 + .0000/-.0003) dia. dia. 15.8725 + .0000/-.0127 (.6249 +.0000/-.0005) dia. 17.526 (.690) 12.7 0.254 (.500 .010) 11.13 0.381 (.438 .015) 19.46 0.381 (.766 .015) 23.86 0.381 (.939 .015) mounting surface 2 1 3 30 5 16.256 (.640) max. r 22.225 0.381 (.875 .015) dia. 6.858 0.254 (.270 .010) 1.575 (.062) 1.575 (.062) 1.575 (.062) 9.525 0.787 (.375 .031) 3.1699 + .0000/-.0076 (.1248 + .0000/-.0003) dia. dia. 15.8725 + .0000/-.0127 (.6249 +.0000/-.0005) dia. 17.526 (.690) 12.7 0.254 (.500 .010) 11.43 0.381 (.450 .015) 19.76 0.381 (.778 .015) 24.206 0.381 (.953 .015) mounting surface 2 2 1 1 3 3 31.88 0.78 (1.255 .031) 40.21 0.78 (1.583 .031) 44.65 0.78 (1.758 .031) 45.67 0.78 (1.798 .031) 3549 - 10-turn precision potentiometer product dimensions single gang, servo mount dual gang, servo mount 1 3 cw ccw 1 3 cw clockwise ccw wiper 2 2 tolerances: except where noted decimals: .xx .xxx .xxxx dimensions: 1 3 cw clockwise ccw 2 wiper .50 (.02) .127 (.005) .0127 (.0005) mm (in)
?ybritron?is a registered trademark of hybritron, inc. specifications are subject to change without notice. customers should verify actual device performance in their specific applications. 3549 - 10-turn precision potentiometer how to order 3549s- 2aa-103/ 103a code h s description hybritron wirewound element type code a b description none 180 anti-rotation lug code 3549 description 10-turn model designator code 1 2 description single dual no. of sections code element type hybritron hybritron hybritron hybritron hybritron hybritron hybritron wirewound wirewound wirewound wirewound wirewound wirewound wirewound wirewound wirewound wirewound resolution 0.055 0.042 0.031 0.027 0.021 0.021 0.019 0.014 0.011 0.008 resistance* code a b description 0.20 % 0.10 % independent linearity code a b c d shaft fms 13/16 " 20.6 mm 13/16 " 20.6 mm shaft material nickel plated brass nickel plated brass stainless steel stainless steel shaft dia. 1/4 " 6 mm 1/4 " 6 mm bushing dia. 3/8 " 9 mm 3/8 " 9 mm bushing material brass brass bronze bronze bushing mount code e shaft fms 3/8 " shaft material stainless steel shaft dia. 1/8 " servo mount 102 (1k ? ) 202 (2k ? ) 502 (5k ? ) 103 (10k ? ) 203 (20k ? ) 503 (50k ? ) 104 (100k ? ) 101 (100 ? ) 201 (200 ? ) 501 (500 ? ) 102 (1k ? ) 202 (2k ? ) 502 (5k ? ) 103 (10k ? ) 203 (20k ? ) 503 (50k ? ) 104 (100k ? ) * for single gang, use only first three digits. for dual gang, use six digits separated by a "/". 05/07 asia-pacific: tel +886-2 25624117 ?fax +886-2 25624116 europe: tel +41-41 7685555 ?fax +41-41 7685510 the americas: tel +1-951 781-5500 ?fax +1-951 781-5700 www.bourns.com reliable electronic solutions copyright?005, bourns, inc. litho in u.s.a. e 10/06 sc0518 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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