Series 7270 Precision Multi-Turn Potentiometer
7/8" Diameter, 10-Turn Wirewound Element
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10-Turn Wirewound element |
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±5% Resistance Tolerance Standard |
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±0.25% Independent Linearity Standard |
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1/4" or 6mm Shaft, 3/8" Bushing |
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Model Styles
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7274
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6mm Shaft, 3/8" Bushing |
7276
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1/4" Shaft, 3/8" Bushing |
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Electrical Specifications
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Resistance Range
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100 to 100K Ohms |
Resistance Tolerance
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±5% Standard
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Independent Linearity
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±0.25% (Standard)
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Power Rating
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2.0 Watts at 25°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 |
Noise
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100 ohms maximum |
Actual Electrical Travel
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3600° + 10° - 0° |
Tap Tolerance
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±3° |
End Voltage
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0.25% of input voltage maximum
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Mechanical Specifications
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Total Mechanical Travel
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3600° +15° -0° |
Number of Gangs
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1 maximum
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Weight
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0.42 oz. Nominal |
Backlash
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2° maximum
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Panel Nut Tightening Torque
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8 lb.-in maximum
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Shaft End Play
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.010" maximum
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Shaft Radial Play
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.010" maximum
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Start/Run Torque
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1.5 oz.-in. maximum
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Environmental Specifications (MIL-R-12934)
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Temperature Range
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-25°C to +105°C
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Temperature Cycling
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5 cycles, -25°C to +105°C (5% ΔR)
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Shock
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100G's, 6ms Sawtooth
(0.1ms discontinuity max.)
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Vibration
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10G's, 10 to 500 Hz
(5% ΔR, 0.1ms discontinuity max.)
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Moisture Resistance
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Five 24 hour cycles (3% ΔR)
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High Temp Exposure
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1,000 hours at 105°C (5% ΔR)
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Rotational Load Life
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500K shaft rev. + 900 hrs. at rated wattage at 25°C (5%ΔR)
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