Series 3381 Precision Potentiometer
1 5/16" Diameter, Single Turn Conductive Plastic
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| Features: |
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Conductive Plastic element |
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±10% Resistance Tolerance Standard |
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±0.5% Independent Linearity Standard |
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1/4" Metal Shaft; 3/8" Bushing |
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Model Styles
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3381
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1/4" Metal Shaft, 3/8" Bushing |
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Electrical Specifications
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Resistance Range
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1K to 300K Ohms |
Resistance Tolerance
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±10% Standard; up to ±5% available
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Independent Linearity
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±0.5% Standard; up to ±0.25% available
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Input Voltage, Maximum
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400Vdc not to exceed power rating
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Power Rating
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2.0W at 70°C derating to 0 at 105°C
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Dielectric Strength
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1,000V rms
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Insulation Resistance
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1,000 Megohms minimum |
Output Smoothness
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0.1% maximum |
Actual Electrical Travel
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348° nominal |
Electrical Continuity Travel
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350° minimum |
End Voltage, maximum
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0.5% of Input Voltage maximum
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Tap Tolerance
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0.5% of Input Voltage maximum |
Resolution
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Essentially infinite
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Temperature Coefficient of Resistance
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-400 ppm/°C typical
Special tempco available to ±100ppm/°C. |
Temperature Coefficient of Output Voltage
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±10 ppm/°C typical
Measured with 10 VDC CW to CCW and slider at 50% of electrical travel. |
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Mechanical Specifications
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Total Mechanical Travel
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360° Continuous
350° ±2° with stop feature |
Number of Gangs
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1 maximum
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Weight
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1.5 oz. Nominal
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Shaft Runout
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.0025" maximum T.I.R.
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Pilot Dia. Runout
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.0025" maximum T.I.R.
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Lateral Runout
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.003" maximum T.I.R.
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Shaft Radial Play
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.004" maximum
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Start/Run Torque
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1.0 oz-in maximum, ES option adds 0.5 oz.-in. |
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Environmental Specifications (MIL-R-12934)
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Temperature Range
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Static: -65°C to +125°C
Dynamic: -40°C to +125°C
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Temperature Cycling
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5 cycles, -65°C to +125°C (10% ΔR)
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Shock, 6ms Sawtooth
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100G's (0.1ms discontinuity max.)
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Vibration
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10G's, 10 to 500 Hz
(2% ΔR, 0.1ms discontinuity max.)
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Moisture Resistance
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Five 24 hour cycles (25% ΔR)
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High Temp Exposure
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Mechanical operation at 125°C (0.5% ΔR)
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Rotational Life
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10 Million shaft revolutions
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Rotational Load Life
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10 Million shaft rev. (10% ΔR) |
| Ingress Protection Rating (IP Code) |
IP50
IP66 available as option (feature code ES) | |
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