2 2-103 model 7380 series model 7380 series 7/8?diameter 3?urn wirewound precision potentiometer electrical resistance range, ohms 100 to 30k standard resistance tolerance ?% minimum practical resistance tolerance ?% independent linearity ?.30% (<500 ohms) ?.25% ( 500 ohms) minimum practical independent linearity ?.30%, < 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 7381 1/8?shaft, 1/4?bushing 7383 1/8?shaft, servo 7386 1/4?shaft, 3/8?bushing 7388 (for heavy side load applications) new product 1/4?shaft, 3/8?bushing specifications subject to change without notice.
2-104 model 7380 series mechanical total mechanical travel 1080 + 15 ?0 number of gangs, maximum 2 weight, nominal (single gang) 0.75 oz. backlash, maximum 1 7381, 7386 7383 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. environmental (mil-r-12934) operating temperature range static: ?5? to +125? dynamic: ?0? to +125? temperature cycling 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 7388 (1 pound side load) 1 million shaft rev. + 900 hrs. at rated wattage at 70? (5% ? r) 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 2-105 model 7380 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 7381 7386 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 7381 & 7386 bushing mount with sleeve bearing
2-106 model 7380 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 40 slider .625 r max 15.9 r max view b 105 max .110 2.794 .020 thickness .060 .003 1.524 .076 .062 .003 1.524 .076 enlarged view b dia. 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 7383 servo mount with ball bearing use special feature code ?t?to order.
2-107 2 model 7380 series ordering information 7386 r 10k t2 l .50 xx model series resistance prefix resistance value optional special feature code linearity optional non-standard tolerance matching turns counting dials 7381: rbj, 2601, 2641 7386: rb, 2126, 2606, 2606s, 2607, 2607s, 2626, 2627, 2646, 2646s, 2647, 2647s (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 cup 7386 without rs) ss shaft lock (7381, 7386 only) sl high torque, 2? oz.-in. (7386 only) ht additional gangs 2g gold plated solder lug terminals (see optional terminal configuration) ft
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