2 2-35 model 3381 model 3381 1-5/16?diameter single turn conductive plastic precision potentiometer/ position sensor electrical resistance range, ohms 1k to 300k standard resistance tolerance ?0% minimum practical resistance tolerance ?% independent linearity* ?.5% minimum practical independent linearity ?.25% input voltage, maximum 400vdc not to exceed power rating power rating, watts 2.0 at 70? derating to 0 at 105? dielectric strength 1,000v rms insulation resistance, minimum 1,000 megohms output smoothness, maximum 0.1% actual electrical travel, nominal 348 electrical continuity travel, minimum 350 end voltage, maximum 0.5% of input voltage tap tolerance 0.5% of input voltage resolution essentially infinite temperature coefficient** ?00 ppm/? specifications subject to change without notice. * linearity is measured between 1% and 99% of input voltage. ** special tempco available to 100ppm/?c. environmental (mil-r-39023) operating temperature range static: ?5? to +125? dynamic: ?40? to +125? temperature cycling 5 cycles, ?5? to +125? (10% ? r) shock, 6ms sawtooth 100g? (0.1ms discontinuity max.) vibration 10g?, 10 to 500 hz (2% ? r, 0.1ms discontinuity max.) moisture resistance five 24 hour cycles (25% ? r) high temperature exposure mechanical operation at 125? (0.5% ? r) rotational life 10 mil. shaft rev. rotational load life 10 mil. shaft rev. (10% ? r)
2-36 model 3381 special features center tap ct linearity tape lt flatted shaft fs slotted shaft ss stop st shaft lock sl standard resistance values, ohms 1k 2k 5k 10k 20k 50k 100k mechanical total mechanical travel 360 continuous (350 ? with stop feature) number of gangs, maximum 1 weight, nominal 1.5 oz. shaft runout, t.i.r., maximum .0025 pilot diameter runout, t.i.r., maximum .0025 lateral runout, t.i.r., maximum .003 shaft radial play, maximum .004 start/run torque, maximum 1.0 oz.-in. metric conversions 1 in. 25.4mm 1 oz. 28.4 gm 1 oz.-in. 0,007 n-m 1 lb.-in. 0,113 n-m
2 2-37 model 3381 ordering information 3381 r 10k t5 l .5 xx model series resistance prefix resistance value optional special feature code linearity optional non-standard tolerance outline dimensions (inch/mm) .562 .016 14.3 0.41 locating lug .125 .005 3.18 0.13 dia. dia. dia. ccw cw ct (when specified) slider .567 .031 14.4 0.79 .470 11.9 max. mounting surface .875 .031 22.2 0.79 .062 .016 1.58 0.41 1.312 .016 33.33 0.41 dia. .090 .016 2.29 0.14 .375 .016 9.53 0.14 3/8 - unef thread chamfer max. x 45 .016 0.41 +.000 -.002 +0.00 -0.05 .406 10.3 +.0000 -.0003 +0.000 -0.008 .2497 6.342 (ccw) (s) (cw) metric equivalents, based on 1 inch = 25.4mm are rounded to the same number of significant figures as in the original english units and are provided for general information only. tolerances unless otherwise specified: linear = .01 inches (.25mm) angular = 2 degrees notes mm inch circuit diagram
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