2 2-109 model 7480 series model 7480 series 7/8?diameter 5?urn wirewound precision potentiometer electrical resistance range, ohms 100 to 50k standard resistance tolerance ?% minimum practical resistance tolerance ?% independent linearity ?.25% minimum practical independent linearity ?.25%, < 500 ohms ?.20%, 500 ohms power rating, watts 1.5 at 70? derating to 0 at 125? dielectric strength 1,000v rms insulation resistance, minimum 1,000 megohms noise, maximum 100 ohms actual electrical travel 1080 + 10 ?0? > 100 ohms 1080 + 10 ?5? 100 ohms tap tolerance ? end voltage, maximum 0.25% of input voltage model styles 7481 1/8?shaft, 1/4?bushing 7483 1/8?shaft, servo 7486 1/4?shaft, 3/8?bushing 7488 (for heavy side load applications) new product 1/4?shaft, 3/8?bushing specifications subject to change without notice. environmental (mil-r-12934) operating temperature range static: ?5? to +125? dynamic: ?0? to +125? thermal shock 5 cycles, ?5? to +125? (5% ? r) shock, 6ms sawtooth 100g? (0.1ms discontinuity max.) vibration 15g?, 10 to 2,000 hz (5% ? r, 0.1ms discontinuity max.) moisture resistance five 24 hour cycles (3% ? r) high temperature exposure 1,000 hours at 125? (5% ? r) rotational load life 1 million shaft rev. + 900 hrs. at rated wattage at 70? (5% ? r) rotational life model 7488 (1 pound side load) 1 million shaft rev. + 900 hrs. at rated wattage at 70? (5% ? r)
2-110 model 7480 series mechanical total mechanical travel 1800 + 15 ?0 number of gangs, maximum 2 weight, nominal (single gang) 0.75 oz. backlash, maximum 1 7481, 7486 7483 static stop strength 60 oz.-in. 36 oz.-in. panel nut tightening torque, maximum 25 lb.-in. n/a shaft end play, maximum .010 .005 shaft runout, t.i.r., maximum .003 .002 pilot diameter runout, t.i.r., maximum .004 .002 lateral runout, t.i.r., maximum .005 .004 shaft radial play, maximum .003 .002 start/run torque, maximum (per gang) 1.2 oz.-in. 0.9 oz.-in. 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/?
2 2-111 model 7480 series outline dimensions (inch/mm) .625 15.9 r max. .875 .016 22.2 0.41 dia. 75 max. slot: .032 .005/0.813 0.127 wide x .032+.010-.000/0.813+0.254-0.000 deep (not on rear shaft models) chamfer .016/0.41 max. x 45 dim. d .312 .016 7.93 0.41 +.000 -.010 +0.00 -0.25 .062 1.58 .080 .001 2.03 0.03 dia. 1.125 .031 28.58 0.79 mounting surface dim. a dim. b dim. c .125 3.18 min. .750 .016 19.1 0.41 slider ccw cw .688 .013 17.475 0.787 .812 .031 20.625 0.787 +.0000 -.0003 +0.0000 -0.0076 +.0000 -.0005 +0.0000 -0.0127 .1248 3.1699 .2500 6.3500 +.000 -.002 +0.000 -0.051 +.000 -.002 +0.000 -0.051 .281 7.137 .406 10.312 dia. dia. dia. dia. 1/4-32 unef thread 3/8-32 unef thread 7481 7486 dim. a b c d 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. models 7481 & 7486 bushing mount with sleeve bearing
40 slider .625 r max 15.9 r max view b 105 max use special feature code ?t?to order. .110 2.794 .020 thickness .060 .003 1.524 .076 .062 .003 1.524 .076 enlarged view b dia. 2-112 model 7480 series outline dimensions (inch/mm) 105 max. clamp .922 23.4 dia. max. .625 15.9 r. max. clamp ears .875 .016 22.2 0.41 housing dia. slider .080 .001 2.03 0.03 dia. .057 1.45 min. .062 .005 1.58 0.13 .062 .005 1.58 0.13 chamfer .016/0.406 max. x 45 .625 15.875 +.000 -.001 +0.000 -0.025 .875 22.2 +.005 -.010 +0.13 -0.25 .1248 3.1699 +.0000 -.0003 +0.0000 -0.0076 dia. dia. dia. mounting surface .375 .031 9.53 0.79 .781 19.8 dia. max. 1.250 .031 31.75 0.79 .875 .016 22.2 0.41 .250 6.35 min. ccw cw optional terminal configuration 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 model 7483 servo mount with ball bearing
2 2-113 model 7480 series ordering information 7486 r 10k t2 l .30 xx model series resistance prefix resistance value optional special feature code linearity optional non-standard tolerance matching turns counting dials 7481: rbj, 2601, 2641 7486: 2606, 2607, 2626, 2627, 2646, 2647, 2126, 2606s, 2607s, 2646s, 2647s, rb (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 special features center tap ct linearity tape lt rear shaft extension rs flatted shaft fs slotted shaft (standard on single gang 7486 without rs) ss shaft lock (7481, 7486 only) sl high torque 2? oz.-in. (7486 only) ht additional gangs 2g gold plated solder lug terminals (see optional terminal configuration) ft
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