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  2 2-93 model 7274, 7276 model styles 7274 6mm shaft, 3/8?bushing 7276 1/4?shaft, 3/8?bushing models 7274, 7276 7/8?diameter plastic 10?urn wirewound precision potentiometer electrical resistance range, ohms 100 to 100k standard resistance tolerance ?% independent linearity ?.25% power rating, watts 2.0 at 25? derating to 0 at 105? dielectric strength 1,000v rms insulation resistance, minimum 1,000 megohms noise, maximum 100 ohms actual electrical travel 3600 + 10 ?0 tap tolerance ? end voltage, maximum (% of input voltage) 0.25% specifications subject to change without notice. environmental (mil-r-12934) operating temperature range ?5? to +105? temperature cycling 5 cycles, ?5? to +105? (5% ? r) shock, 6ms sawtooth 100g? (0.1ms discontinuity max.) vibration 10g?, 10 to 500 hz (5% ? r, 0.1ms discontinuity max.) moisture resistance five 24 hour cycles (3% ? r) high temperature exposure 1,000 hours at 105? (5% ? r) rotational load life 500k shaft rev. + 900 hrs. at rated wattage at 25? (5% ? r)
2-94 model 7274, 7276 standard resistance values, ohms theoretical total resolution tempco resistance (% nominal) of wire 100 0.059 ?0 ppm/? 200 0.037 ?0 ppm/? 500 0.030 ?0 ppm/? 1k 0.024 ?0 ppm/? 2k 0.020 ?0 ppm/? 5k 0.018 ?0 ppm/? 10k 0.017 ?0 ppm/? 20k 0.016 ?0 ppm/? 50k 0.010 ?0 ppm/? 100k 0.009 ?0 ppm/? mechanical total mechanical travel 3600 + 15 ?0 number of gangs, maximum 1 weight, nominal 0.42 oz. static stop strength, maximum 60 oz.-in. backlash, maximum 2 panel nut tightening torque, maximum 8 lb.-in. shaft end play, maximum .010 shaft radial play, maximum .010 start/run torque, maximum 1.5 oz.-in. metric conversions 1 in. 25.4 mm 1 oz. 28.4 gm 1 oz.-in. 0,007 n-m 1 lb.-in. 0,113 n-m
2 2-95 model 7274, 7276 optional terminal configuration 40 slider .625 r max 15.9 r max view b .110 2.794 .020 thickness .060 .003 1.524 .076 .062 .003 1.524 .076 enlarged view b dia. use special feature code ?t?to order. outline dimensions (inch/mm) .625 15.9 r max. .875 .016 22.2 0.41 dia. 75 max. .312 .016 7.93 0.41 +.000 -.010 +0.00 -0.25 .062 1.58 mounting surface dim. a .404 .002 10.3 0.05 .812 .031 20.6 0.79 .750 .040 19.1 1.02 slider ccw cw dia. 3/8 - 32 unef thread anti-rotation pin .060 .005/1.52 0.13 dia. on .290 .005/7.37 0.13 radius. extends .040 .010/1.02 0.25 from mounting surface adjustment slot: .047 .005/1.19 0.13 wide x +.015 +0.38 -.000 -0.00 .195 .015/4.95 0.38 long .063 /1.60 deep x +.0000 -.0020 +0.00 -0.05 .2362 6.00 .249 .001 6.33 0.03 dim. 7274 7276 a dia. dia.
2-96 model 7274, 7276 ordering information 7276 r 10k l .25 model series resistance prefix linearity resistance value matching turns counting dials 2606, 2606s, 2607, 2607s, 2626, 2627, 2646, 2646s, 2647, 2647s, 2126, rb 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 (ccw) (s) (cw) circuit diagram special features center tap ct linearity tape lt flatted shaft fs shaft lock sl gold plated solder lug terminals (see optional terminal configuration) ft


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