AR50L.25XX

MODEL A 1-13/16” Diameter 10-Turn Wirewound Precision Potentiometer ELECTRICAL 2 Resistance Range, Ohms Standard Resistance Tolerance Minimum Practical Resistance Tolerance Independent Linearity Minimum Practical Independent Linearity Power Rating, Watts Input Voltage, Maximum Dielectric Strength Insulation Resistance, Minimum Noise, Maximum Actual Electrical Travel Tap Tolerance End Voltage, Maximum (% of input voltage) This model available in a hybrid version – contact factory for details. ENVIRONMENTAL (MIL-R-12934) 10 to 500K < 100 Ohms = ±5%, ≥ 100 Ohms = ±3% ±1% < 300 Ohms = ±0.50%, ≥ 300 Ohms = ±0.25% ±0.15%, ≤ 20 Ohms ±0.10%, < 100 Ohms ±0.075%, < 300 Ohms ±0.05%, ≥ 300 Ohms 5.0 at 40°C derating to 0 at 85°C 1,000Vdc not to exceed power rating 1,000V rms 1,000 Megohms 500 Ohms: RT ≤ 2613.7 Ohms 250 Ohms: RT > 2613.7 Ohms 3600° + 4° – 0° ≤ 20 Ohms = ±3°, < 100 Ohms = ±2° < 300 Ohms = ±1.5°, ≥ 300 Ohms = ±1° 10 Ohms = 3%, 25 Ohms = 1.2% 50 Ohms = 0.6%, ≥100 Ohms = 0.25% Operating Temperature Range Temperature Cycling Shock, 6ms Sawtooth Vibration Moisture Resistance High Temperature Exposure Rotational Load Life Specifications subject to change without notice. Static: –65°C to +85°C Dynamic: –40°C to +85°C 5 cycles, –65°C to +85°C (5% ∆R) 100G’s (0.1ms discontinuity max.) 6 hours, 10 to 55 Hz (5% ∆RT, 0.1ms discontinuity max.) Ten 24 hour cycles (3% ∆R) 1,000 hours at 85°C (5% ∆R) 2 mil. shaft rev. + 900 hrs. at rated wattage at 40°C (5% ∆R) 2-5 Model A MECHANICAL Total Mechanical Travel Number of Gangs, Maximum Weight, Nominal (Single Gang) Static Stop Strength Backlash, Maximum 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 3600° + 4° – 0° 3 4.4 oz. 550 oz.-in. 1° 25 lb.-in. .005” .0005” .002” .003” .003” 3.0 oz.-in. Total Resistance 10 25 50 100 200 500 1K 2K 5K 10K 20K 50K 100K 200K 300K 500K Theoretical Resolution (% Nominal) 0.082 0.040 0.031 0.040 0.031 0.024 0.021 0.016 0.014 0.011 0.009 0.007 0.006 0.005 0.005 0.005 * Lower tempco available as a special model. Tempco of Wire +800 ppm/°C +800 ppm/°C +800 ppm/°C ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C +130 ppm/°C +130 ppm/°C +130 ppm/°C +130 ppm/°C ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C ±20 ppm/°C * * * * * * * 2-6 Model A OUTLINE DIMENSIONS (Inch/mm) Dim. “L” 2.016 Max. 51.21 4.243 Max. 107.78 6.143 Max. 156.04 Dim. “M” 2.062±.031 52.38±0.79 Dim. “RS” 2.875±.031 73.03±0.79 No.of Gangs 1 5.016±.031 4.205±.031 106.81±0.79 127.41±.0.79 6.100±.031 154.94±0.79 6.906+.031 175.42±0.79 2 3 2 RS M L Slider CCW CW Mounting Surface .062±.016 1.58±0.41 .812±.031 20.6±0.79 1.812±.016 46.03±0.41 Dia. +.000 .406 -.002 Dia. +0.000 10.312 -0.051 +.0000 .2497 -.0003 Dia. +0.0000 6.3424 -0.0076 1.250 R Max. 31.75 .562±.016 14.3±0.41 Chamfer .016 Max. x 45° 0.41 3/8 - 32 UNEF Thread 2 & 3 Gang Outline Locating Lug .125±.005/3.175±0.127 Dia. Positioned as Shown ±5° .312±.025 7.93±0.64 .062±.016 1.58±0.41 .312±.016 7.93±0.41 METRIC CONVERSIONS 1 in. 1 oz. 25.4mm 28.4 gm 1 oz.-in. 1 lb.-in. 0,007 N-m 0,113 N-m 2-7 Model A SPECIAL FEATURE CODES Center Tap Linearity Tape Rear Shaft Extension Flatted Shaft Slotted Shaft Shaft Lock Color Coded Additional Gangs ORDERING INFORMATION CT LT RS FS SS SL CC 2G or 3G A R 10K T2 L .25 XX Model Series Resistance Prefix Resistance Value Linearity Optional Non-Standard Tolerance Optional Special Feature Code MATCHING TURNS COUNTING DIALS 2606, 2607, 2626, 2627, 2646, 2647, 2126, 2606S, 2607S, 2646S, 2647S, RB CIRCUIT DIAGRAM NOTES 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 (S) (CCW) (CW) INCH mm 2-8 Model A