Model 3381 1 - 5/16” Diameter Single Turn Conductive Plastic Precision Potentiometer / Position Sensor ELECTRICAL1 Resistance Range 1K to 300K Ohms Standard Resistance Tolerance ±10% Minimum Practical Resistance Tolerance ±5% Independent Linearity2 ±0.5% Minimum Practical Independent Linearity ±0.25% Input Voltage 400 VDC maximum, not to exceed power rating Power Rating 2.0 Watts at 70°C, derating to 0 at 105°C Dielectric Strength 1,000 V rms Insulation Resistance 1,000 Megohms minimum Output smoothness 0.1% maximum Actual Electrical Travel 348° nominal Electrical Continuity Travel 350° minimum End Voltage maximum 0.5% of input voltage Tap Tolerance maximum 0.5% of input voltage Resolution essentially infinite Temperature Coefficient of Resistance3 -400 ppm/°C typical Temperature Coefficient of Output Voltage4 ±10 ppm/°C typical MECHANICAL Total Mechanical Travel 360° Continuous (350° ±2° with stop feature) Number of Gangs 1 maximum Weight 1.5 oz. nominal Shaft Runout 0.0025” maximum T.I.R. Pilot Diameter Runout 0.0025” maximum T.I.R. Lateral Runout 1 2 3 4 0.003”maximum T.I.R. Shaft Radial Play 0.004” maximum Start/Run Torque 1.0 oz.-in. maximum, ES option adds 0.5 oz.-in. Specifications subject to change without notice. Linearity is measured between 1% and 99% of input voltage. Special TCR available to ±100 ppm/°C. Measured with 10 VDC CW to CCW and slider at 50% of electrical travel BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 October 31 2014 Website: www.bitechnologies.com Model 3381 page 1 of 3 RoHS 2 Pb compliant Model 3381 ENVIRONMENTAL (MIL-PRF-39023) Operating Temperature Range -40°C to +125°C dynamic, -65°C to +125°C static Temperature Cycling 5 cycles, -65°C to +125°C, maximum 10% ΔR Shock 6 ms sawtooth, 100 G’s, 0.1 ms maximum discontinuity Vibration 10 G’s, 10 to 500 Hz, maximum 2% ΔR, 0.1 ms maximum discontinuity Moisture Resistance five 24 hour cycles, maximum 25% ΔR High Temperature Exposure 1,000 hours at 125°C, maximum 0.5% ΔR Rotational Life 10 million shaft revolutions Rotational Load Life 10 million shaft revolutions, maximum 10% ΔR Ingress Protection Rating (IP Code) IP50, IP66 available as option (feature code ES) ORDERING INFORMATION 3381 R 10K T5 L.5 xx Model Series Optional Feature Code (see table) Resistance Prefix Linearity Resistance Value Optional Non-standard Tolerance FEATURE CODES Center Tap CT Linearity Tape LT Flatted Shaft FS Slotted Shaft SS Shaft Lock SL Stop ST Seal (IP66) ES When multiple Optional Feature codes are used the P/N shall be in the same sequence as listed in this table (top to bottom). STANDARD RESISTANCE VALUES CIRCUIT DIAGRAM (S) (CCW) 1K 5K 20K 2K 10K 50K (CW) BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 October 31 2014 Website: www.bitechnologies.com Model 3381 page 2 of 3 100K Model 3381 OUTLINE DRAWING Mounting Surface .567±.031 14.4±0.79 .875±.031 22.2±0.79 .470 11.9 Max. CCW .062±.016 1.58±0.41 CW .2497 6.342 1.312±.016 33.33±0.41 +.0000 -.0003 +0.000 -0.008 Dia. Dia. .562±.016 14.3±0.41 +.000 -.002 +0.00 10.3 -0.05 .406 Slider .090±.016 2.29±0.14 CT (when specified) Chamfer .016 Max. x 45° 0.41 .375±.016 9.53±0.14 3/8 - UNEF Thread BI Technologies Corporation 4200 Bonita Place, Fullerton, CA 92835 USA Phone: 714 447 2345 October 31 2014 Dia. Website: www.bitechnologies.com Model 3381 page 3 of 3 Locating Lug .125±.005 Dia. 3.18±0.13