8140

8140 BITECH | Alldatasheet

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Technical content

7/8” Diameter 10–Turn* Hybrid Precision Potentiometer / Position Sensor ELECTRICAL Resistance Range, Ohms 1K to 100K Standard Resistance Tolerance ±10% Minimum Practical Resistance Tolerance ±5% Independent Linearity ±0.25% Power Rating, Watts 2.0 at 70°C derating to 0 at 125°C Dielectric Strength 1,000V rms Insulation Resistance, Minimum 1,000 Megohms Output Smoothness, Maximum 0.05% ≤5K Ohms, 0.03%>5K Ohms Actual Electrical Travel, Nominal 3600° Tap Tolerance (Voltage Tap Only) ±0.05% of input voltage End Voltage, Maximum 0.2% of input voltage Resolution Essentially Infinite Temperature Coefficient +100ppm/°C, -150ppm/°C ENVIRONMENTAL (MIL-R-12934) Operating Temperature Range Static: –55°C to +125°C Dynamic: -40°C to +125°C Temperature Cycling 5 cycles, –40°C to +125°C (5% ∆R) Shock, 6ms Sawtooth 100G’s (0.1ms discontinuity max.) Vibration 15G’s, 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°C (5% ∆R) Rotational Load Life 5 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5% ∆R) Rotational Life Model 8148 (1 pound Side Load) 5 mil. shaft rev. + 900 hrs. at rated wattage at 70°C (5% ∆R) MODEL STYLES 8141 1/8” Shaft, 1/4” Bushing 8143 1/8” Shaft, Servo 8146 1/4” Shaft, 3/8” Bushing 8148 (for heavy side load applications) NEW PRODUCT 1/4” Shaft, 3/8” Bushing Specifications subject to change without notice. * Model available in 3 & 5 turn versions.

Total Mechanical Travel 3600° + 15° – 0° Number of Gangs, Maximum 2 Weight, Nominal (single gang) 0.75 oz. Backlash, Maximum 1° 8141, 8146 8143 Static Stop Strength 60 oz.-in. 36 oz.-in. Panel Nut Tightening Torque, Maximum 25 lb.-in. NA Shaft End Play, Maximum .010” .005” Shaft Radial Play, Maximum .003” .002” STANDARD RESISTANCE VALUES, OHMS 1K 2K 5K 10K 20K 50K 100K 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

.625 15.9 R Max. .875±.016 22.2±0.41 Dia. 75° Max. Slot: .032±.005/0.813±0.127 Wide X (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±0.03Dia. 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±.031 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 8141 8146Dim. A B C D OUTLINE DIMENSIONS (Inch/mm) OPTIONAL TERMINAL CONFIGURATION 40° SLIDER .625 R MAX

15.9 R MAX

.110 2.794 .020 Thickness .060 ± .003 1.524 ± .076 .062 ± .003 1.524 ± .076 Enlarged View B Dia. Use Special Feature Code “FT” to order. Models 8141 & 8146 Bushing Mount with Sleeve Bearing

OUTLINE DIMENSIONS (Inch/mm) 105° Max. Clamp .922 23.4Dia. Max. .625 15.9 R. Max. Clamp Ears .875±.016 22.2±0.41 Housing Dia. Slider .080±.001 2.03±0.03Dia. .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 105° MAX Use Special Feature Code “FT” to order. .110 2.794 .020 Thickness .060 ± .003 1.524 ± .076 .062 ± .003 1.524 ± .076 Enlarged View B Dia. Model 8143 Servo Mount wiht Ball Bearing

ORDERING INFORMATION

8146 R 10K T5 L .25 XX Model Series Resistance Prefix Resistance Value Optional Special Feature Code Linearity Optional Non-Standard Tolerance (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 (8143, 8146 single cup only) RS Flatted Shaft FS Slotted Shaft (Standard on single gang 8146 without RS) SS Shaft Lock (8141, 8146 only) SL High Torque 2–6 oz.-in. (8146 only) HT Additional Gangs 2G Gold plated solder lug terminals (See optional terminal configuration) FT MATCHING TURNS COUNTING DIALS 8141: RBJ, 2601, 2641 8146: 2606, 2607, 2626, 2627, 2646, 2647, 2126, 2606S, 2607S, 2646S, 2647S, RB