8143R20KT5L.25XX

MODEL 8140 SERIES 7/8” Diameter 10–Turn* Hybrid Precision Potentiometer / Position Sensor MODEL STYLES 2 8141 8143 8146 8148 (for heavy side load applications) NEW PRODUCT ELECTRICAL 1/8” Shaft, 1/4” Bushing 1/8” Shaft, Servo 1/4” Shaft, 3/8” Bushing 1/4” Shaft, 3/8” Bushing Resistance Range, Ohms Standard Resistance Tolerance Minimum Practical Resistance Tolerance Independent Linearity Power Rating, Watts Dielectric Strength Insulation Resistance, Minimum Output Smoothness, Maximum Actual Electrical Travel, Nominal Tap Tolerance (Voltage Tap Only) End Voltage, Maximum Resolution Temperature Coefficient ENVIRONMENTAL (MIL-R-12934) 1K to 100K ±10% ±5% ±0.25% 2.0 at 70°C derating to 0 at 125°C 1,000V rms 1,000 Megohms 0.05%≤5K Ohms, 0.03%>5K Ohms 3600° ±0.05% of input voltage 0.2% of input voltage Essentially Infinite +100ppm/°C, -150ppm/°C Operating Temperature Range Temperature Cycling Shock, 6ms Sawtooth Vibration Moisture Resistance High Temperature Exposure Rotational Load Life Rotational Life Model 8148 (1 pound Side Load) Specifications subject to change without notice. * Model available in 3 & 5 turn versions. Static: –55°C to +125°C Dynamic: -40°C to +125°C 5 cycles, –40°C to +125°C (5% ∆R) 100G’s (0.1ms discontinuity max.) 15G’s, 10 to 2,000 Hz (5% ∆R, 0.1ms discontinuity max.) Five 24 hour cycles (3% ∆R) 1,000 hours at 125°C (5% ∆R) 5 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5% ∆R) 5 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5% ∆R) 2-123 Model 8140 Series MECHANICAL Total Mechanical Travel Number of Gangs, Maximum Weight, Nominal (single gang) Backlash, Maximum Static Stop Strength Panel Nut Tightening Torque, Maximum Shaft End 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 8141, 8146 60 oz.-in. 25 lb.-in. .010” .003” .004” .005” .003” 0.8 oz.-in. 3600° + 15° – 0° 2 0.75 oz. 1° 8143 36 oz.-in. NA .005” .002” .002” .004” .002” 0.6 oz.-in. 1K 2K 5K 10K 20K 50K 100K METRIC CONVERSIONS 1 in. 1 oz. 25.4 mm 28.4 gm 1 oz.-in. 1 lb.-in. 0,007 N-m 0,113 N-m 2-124 Model 8140 Series OUTLINE DIMENSIONS (Inch/mm) Models 8141 & 8146 Bushing Mount with Sleeve Bearing Dim. A 8141 .688±.031 17.475±0.787 +.0000 -.0003 Dia. +0.0000 3.1699 -0.0076 .1248 +.000 .281 -.002 Dia. +0.000 7.137 -0.051 1/4-32 UNEF Thread 8146 .812±.031 20.625±0.787 +.0000 -.0005 Dia. +0.0000 6.3500 -0.0127 .2500 +.000 .406 -.002 Dia. +0.000 10.312 -0.051 3/8-32 UNEF Thread B 2 1.125±.031 28.58±0.79 .750±.016 19.1±0.41 Slider CCW CW Mounting Surface Dim. A C D .125 Min. 3.18 Dim. B Dim. C 75° Max. .625 R Max. 15.9 .080±.001 Dia. 2.03±0.03 Slot: .032±.005/0.813±0.127 Wide X .032+.010-.000/0.813+0.254-0.000 Deep (Not on Rear Shaft Models) +.000 -.010 +0.00 1.58 -0.25 .062 Dim. D .312±.016 7.93±0.41 Chamfer .016/0.41 Max. x 45° .875±.016 Dia. 22.2±0.41 OPTIONAL TERMINAL CONFIGURATION 40° VIEW B SLIDER .625 R MAX 15.9 R MAX .110 2.794 .020 Thickness .060 ± .003 Dia. 1.524 ± .076 .062 ± .003 1.524 ± .076 Use Special Feature Code “FT” to order. Enlarged View B 2-125 Model 8140 Series OUTLINE DIMENSIONS (Inch/mm) Model 8143 Servo Mount wiht Ball Bearing 1.250±.031 31.75±0.79 .875±.016 22.2±0.41 .250 CCW 6.35 CW 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 .057 Min. 1.45 .062±.005 1.58±0.13 Chamfer .016/0.406 Max. x 45° .062±.005 1.58±0.13 .625 R. Max. 15.9 Clamp Ears 105° Max. Slider .080±.001 Dia. 2.03±0.03 .875±.016 22.2±0.41 Housing Dia. +.005 .875 -.010 +0.13 Dia. 22.2 -0.25 Clamp .922 Dia. Max. 23.4 OPTIONAL TERMINAL CONFIGURATION 105° MAX 40° VIEW B SLIDER .625 R MAX 15.9 R MAX .110 2.794 .020 Thickness .060 ± .003 Dia. 1.524 ± .076 .062 ± .003 1.524 ± .076 Use Special Feature Code “FT” to order. Enlarged View B 2-126 Model 8140 Series SPECIAL FEATURES Center Tap Linearity Tape Rear Shaft Extension (8143, 8146 single cup only) Flatted Shaft Slotted Shaft (Standard on single gang 8146 without RS) Shaft Lock (8141, 8146 only) High Torque 2–6 oz.-in. (8146 only) Additional Gangs Gold plated solder lug terminals (See optional terminal configuration) ORDERING INFORMATION CT LT RS FS SS SL HT 2G FT 2 8146 R 10K T5 L .25 XX Model Series Resistance Prefix Resistance Value Optional Special Feature Code Linearity Optional Non-Standard Tolerance MATCHING TURNS COUNTING DIALS 8141: RBJ, 2601, 2641 8146: 2606, 2607, 2626, 2627, 2646, 2647, 2126, 2606S, 2607S, 2646S, 2647S, RB CIRCUIT DIAGRAM NOTES (S) (CCW) (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 INCH mm 2-127 Model 8140 Series