7/8" Diameter 3-Turn Wirewound Precision Potentiometer MODEL STYL

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7/8" Diameter 3-Turn Wirewound Precision Potentiometer MODEL STYL

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MODEL 7380 SERIES
7/8" Diameter 3-Turn Wirewound Precision Potentiometer
MODEL STYLES
7381 7383 7386
ELECTRICAL
1/8" Shaft, 1/4" Bushing 1/8" Shaft, Servo 1/4" Shaft, 3/8" Bushing
Resistance Range, Ohms Standard Resistance Tolerance Minimum Practical Resistance Tolerance Independent Linearity Minimum Practical Independent Linearity Power Rating, Watts Dielectric Strength Insulation Resistance, Minimum Noise, Maximum Actual Electrical Travel Tolerance Voltage, Maximum
Specifications subject change without notice.
±0.30% (<500 Ohms) ±0.25% (500 Ohms) ±0.30%, Ohms ±0.20%, Ohms 70°C derating 125°C 1,000V 1,000 Megohms Ohms 1080° Ohms 1080° Ohms 0.25% input voltage
2-103
Model 7380 Series
ENVIRONMENTAL (MIL-R-12934)
Operating Temperature Range Temperature Cycling Shock, Sawtooth Vibration Moisture Resistance High Temperature Exposure Rotational Load Life
MECHANICAL
Static: -55°C +125°C Dynamic: -40°C +125°C cycles, -55°C +125°C 100G's (0.1ms discontinuity max.) 15G's, 2,000 0.1ms discontinuity max.) Five hour cycles 1,000 hours 125°C 300K shaft rev. hrs. rated wattage 70°C
Total Mechanical Travel Number Gangs, Maximum Weight, Nominal (single gang) Backlash, Maximum Static Stop Strength Panel Tightening Torque, Maximum Shaft Play, Maximum Shaft Runout, T.I.R., Maximum Pilot Diameter Runout, T.I.R., Maximum Lateral Runout, T.I.R., Maximum Shaft Radial Play, Maximum Start/Run Torque, Maximum (per gang)
STANDARD RESISTANCE VALUES, OHMS
7381, 7386 oz.-in. lb.-in. .010" .003" .004" .005" .003" oz.-in.
1080° 0.75 7383 oz.-in. .005" .002" .002" .004" .002" oz.-in.
Total Resistance
Theoretical Resolution Nominal) 0.059 0.037 0.030 0.024 0.020 0.018 0.017 0.016
Tempco Wire ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C ppm/°C
2-104
Model 7380 Series
OUTLINE DIMENSIONS (Inch/mm)
Models 7381 7386 Bushing Mount with Sleeve Bearing
Dim.
7381 .688±.013 17.475±0.787 +.0000 -.0003 Dia. +0.0000 3.1699 -0.0076 .1248 +.000 -.002 Dia. +0.000 7.137 -0.051 .281 1/4-32 UNEF Thread
7386 .812±.031 20.625±0.787 +.0000 -.0005 Dia. +0.0000 6.3500 -0.0127 .2500 +.000 -.002 Dia. +0.000 10.312 -0.051 .406 3/8-32 UNEF Thread
Mounting Surface Dim. .125 Min. 3.18 Dim. Dim.
1.125±.031 28.58±0.79 .750±.016 19.1±0.41 Slider
Max.
.625 Max. 15.9
.080±.001 Dia. 2.03±0.03
Slot: .032±.005/0.813±0.127 Wide Deep (Not Rear Shaft Models) +.000 -.010 +0.00 1.58 -0.25 .062 Chamfer Dim. .016/0.41 Max. .312±.016 7.93±0.41 .875±.016 Dia. 22.2±0.41
OPTIONAL TERMINAL CONFIGURATION
VIEW SLIDER .625 15.9
.110 2.794 .020 Thickness .060 .003 Dia. 1.524 .076 .062 .003 1.524 .076
Special Feature Code "FT" order.
Enlarged View
2-105
Model 7380 Series
OUTLINE DIMENSIONS (Inch/mm)
Model 7383 Servo Mount with Ball Bearing
1.250±.031 31.75±0.79 .875±.016 22.2±0.41 .250 6.35 Min.
Mounting Surface .375±.031 9.53±0.79 .781 Dia. Max. 19.8 +.0000 .1248 -.0003 Dia. +0.0000 3.1699 -0.0076 +.000 -.001 +0.000 Dia. 15.875 -0.025 .625
.625 Max. 15.9 105° Max.
Clamp Ears
Slider
.080±.001 Dia. 2.03±0.03 .875±.016 22.2±0.41 Housing Dia. .057 Min. 1.45 .062±.005 1.58±0.13
+.005 .875 -.010 +0.13 Dia. 22.2 -0.25 Clamp .922 Dia. Max. 23.4
Chamfer .016/0.406 Max. .062±.005 1.58±0.13
OPTIONAL TERMINAL CONFIGURATION
105° VIEW SLIDER .625 15.9
.110 2.794 .020 Thickness .060 .003 Dia. 1.524 .076 .062 .003 1.524 .076
Special Feature Code "FT" order.
Enlarged View
METRIC CONVERSIONS
25.4 28.4
oz.-in. lb.-in.
0,007 0,113
2-106
Model 7380 Series
SPECIAL FEATURES
Center Linearity Tape Rear Shaft Extension Flatted Shaft Slotted Shaft (Standard single 7386 without Shaft Lock (7381, 7386 only) High Torque, oz.-in. (7386 only) Additional Gangs Gold Plated Solder Terminals (See optional terminal configuration)
ORDERING INFORMATION
7386 Model Series Resistance Prefix Resistance Value Optional Special Feature Code Linearity Optional Non-Standard Tolerance
MATCHING TURNS COUNTING DIALS
7381: RBJ, 2601, 2641 7386: 2126, 2606, 2606S, 2607, 2607S, 2626, 2627, 2646, 2646S, 2647, 2647S
CIRCUIT DIAGRAM
NOTES
(CCW) (CW)
Metric equivalents, based inch 25.4mm rounded same number significant figures original English units provided general information only. Tolerances unless otherwise specified: Linear inches (.25mm) Angular degrees
INCH
2-107
Model 7380 Series

7/8" Diameter 3-Turn Wirewound Precision Potentiometer MODEL STYL

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