MODELS B, D & E 3-5/16” Diameter Multiturn Wirewound 2 Precision Potentiometer ELECTRICAL B / BSP 15 TURN Resistance Range, Ohms D / DSP 25 TURN E / ESP 40 TURN 40 to 2 Meg 60 to 3.3 Meg 125 to 5.3 Meg Standard Resistance Tolerance ±5% ±5% ±5% Minimum Practical Resistance Tolerance ±1% ±1% ±1% ±0.50% ±0.50% ±0.50% Independent Linearity Input Voltage, Maximum (Not to Exceed Power Rating) 1,000Vdc 1,000Vdc 1,000Vdc Power Rating, Watts (Derating to 0 at 85°C) 10 at 40°C 15 at 40°C 20 at 40°C Dielectric Strength Insulation Resistance, Minimum Actual Electrical Travel, Nominal End Voltage, Maximum 1,000V rms 1,000V rms 1,000V rms 100 Megohms 100 Megohms 100 Megohms 5,400° +4° -0° 9,000° +4° -0° <0.50% of Input Voltage <0.50% of Input Voltage 14,400° +4° -0° <0.50% of Input Voltage Minimum Practical Independent Linearity: <100 Ohms ±0.10% ±0.05% ±0.05% 100 Ohms to 999 Ohms ±0.05% ±0.05% ±0.05% ≥1K Ohms ±0.035% ±0.035% ±0.035% 500 Ohms, Maximum, RT = ≤8K ≤13K ≤30K 250 Ohms, Maximum, RT = >8K >13K >30K <70 Ohms <100 Ohms <150 Ohms Noise: Tap Tolerance: ±1.5°, RT = ±1.0°, RT = Temperature Coefficient: 800ppm/°C, RT = 20ppm/°C, RT = 130ppm/°C, RT = ≥70 Ohms ≥100 Ohms ≥150 Ohms 40 Ohms to 265 Ohms 60 Ohms to 440 Ohms 125 Ohms to 700 Ohms 300 Ohms to 8K, >142K 500 Ohms to 13.5K, >230K 800 Ohms to 30K, >340K 8.6K to 128K 14K to 213K 34K to 340K B / BSP D / DSP E / ESP 15 TURN 25 TURN 40 TURN Temperature Cycling, -65° to +85°C 5% ∆R 5% ∆R 5% ∆R Low Temperature Exposure, 24 hrs. at -65°C 5% ∆R 5% ∆R 5% ∆R ENVIRONMENTAL (MIL-R-12934) Specifications subject to change without notice. 2-9 Model B, D & E Series MECHANICAL Total Mechanical Travel Number of Gangs, Maximum B / BSP D / DSP 15 TURN 25 TURN E / ESP 40 TURN 5,400° +4° -0° 9,000° +4° -0° 14,400° +4° -0° 3 1 1 13 oz. 17 oz. 21 oz. Static Stop Strength 1.150 oz.-in. 730 oz.-in. 730 oz.-in. Backlash, Maximum 0.2° 0.2° 0.2° Shaft End Play, Maximum 0.007" / 0.005" 0.016" / 0.007" 0.016" / 0.007" Shaft Runout, T.I.R., Maximum 0.0005" / 0.001" 0.002" 0.002" Pilot Diameter Runout, T.I.R., Maximum 0.002" / 0.0015" 0.002" 0.002" Lateral Runout, T.I.R., Maximum 0.003" / 0.0065" 0.003" / 0.004" 0.003" / 0.004" Start/Run Torque, Maximum 2.7 / 2.0 oz.-in. 3.5 / 2.5 oz.-in. 3.5 / 2.5 oz.-in. Weight, Nominal Per Gang SPECIAL FEATURE CODES Center Tap Linearity Tape Rear Shaft Extension Flatted Shaft Slotted Shaft CT LT RS FS SS ORDERING INFORMATION B R 10K T1 L .5 XX Optional Special Feature Code Linearity Optional Non-Standard Tolerance Model Series Resistance Prefix Resistance Value NOTES CIRCUIT DIAGRAM 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. (S) (CCW) INCH mm Tolerances unless otherwise specified: Linear = ± .01 inches (.25mm) Angular = ± 2 degrees (CW) 2-10 Model B, D & E Series OUTLINE DIMENSIONS (Inch/mm) Mounting Surface 1.500±.031 38.10±0.79 Models B, D & E Bushing Mount with Sleeve Bearing 1.000±.031 25.40±0.79 .500±.016 12.7±0.41 Slider CCW CW 2.031±.031 R. 51.59±0.79 31°± 2° 1.875±.031 R. 47.63±0.79 +0.0000 .5937 -0.0020 Dia. +0.0000 15.0800 -0.0508 2 3.312±.016 Dia. 84.13±0.41 Dim. "L" B 2.875±.031 73.03±0.79 D 4.141±.047 105.2±1.19 E 6.016±.047 152.8±1.19 B D E Model +.0000 .2497 -.0003 Dia. +0.0000 6.3424 -0.0076 "L" +.000 .062 -.010 +0.00 1.58 -0.25 Chamfer .016 Max. x 45° 0.41 1/2 - 32 NS Thread .531±.016 13.49±0.41 Locating Hole .129±.005 .062±.016 Dia. x Deep 3.28±0.13 1.58±0.41 Positioned as shown±5° OUTLINE DIMENSIONS (Inch/mm) Models BSP, DSP & ESP Servo Mount with Ball Bearing Mounting Surface .563 Max. 14.3 1.000±.031 25.40±0.79 Slider CCW 30° ± 2° 2.031±.031 R. 51.59±0.79 CW Chamfer 3.312±.016 Dia. 84.13±0.41 1.875±.031 R. 47.63±0.79 .016 Max. x 45° 0.41 +.0000 -.0003 Dia. +0.0000 6.3424 -0.0076 .2497 ESP DSP BSP "L" Model Dim. "L" BSP 2.828±.031 71.83±0.79 DSP 4.062 Max. 103.2 ESP 5.937 150.8 Max. .093±.005 2.36±0.13 .062±.005 1.58±0.13 +.000 3.312 -.001 Dia. +0.00 84.13 -0.03 3.500±.005 Dia. 88.900±0.13 2-11 Model B, D & E Series