Models 91, 92, 93, 94, 95 (Series 90) 5/8" Square Single-Turn Panel Control
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Features: |
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Cermet or Conductive Plastic Elements |
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±5% Independent Linearity |
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Single or Dual Modules |
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Metal Bushing; Plastic or Metal Shaft |
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RoHS Compliant |
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Model
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Model 91
| Single-Turn, In-Line PC Pins
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Model 92
| Single-Turn, In-Line J-Hooks
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Model 93
| Single-Turn, L-Pattern PC Pins
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Model 94
| Single-Turn, Single-Turn, L-Pattern J-Hooks
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Model 95
| Single-Turn, Triangle-Pattern Solder Lugs
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Electrical Specifications
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Output
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Conductive Plastic: 1K to 1M ohm
Cermet Linear Taper: 100 to 1M ohm
Cermet Audio Taper: 1K to 1M ohm
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Tolerance
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Conductive Plastic: 10%
Cermet: 5% or 10%
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Linearity
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±5%
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Minimum Resistance
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2 ohms maximum
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Effective Electrical Angle
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Conductive Plastic Linear: 240°±5°
Conductive Plastic Audio: 225°±5°
Cermet Linear: 240°±6°
Cermet Audio: 225°±6°
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Contact Resistance Variation
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±1% or 3 ohms (whichever is greater)
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Dielectric Withstanding Voltage
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Sea Level: 1,500 VAC minimum 70,000 Feet: 500 VAC minimum (MIL-STD-202, Method 301) |
Insulation Resistance
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1,000 megohms minimum (500 VDC)
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Power Rating (Voltage limited by power dissipation or 350 VAC, whichever is less) |
+70°C Single Section:
CP Linear: 1 watt; Cermet Linear: 2 watts
CP Audio: 0.5 watt; Cermet Audio: 1 watt
+70°C Multiple Section:
CP Linear: 0.5 watt; Cermet Linear: 1 watt
CP Audio: 0.25 watt; Cermet Audio: 0.5 watt
+125 °C: 0 watt
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Theoretical Resolution
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Essentially infinite
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Mechanical Specifications
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Mechanical Angle
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300° ±5°
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Stop Strength
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1/4" Dia. shaft: 45.19 N-cm (4 lb.-in.)
1/8" Dia. shaft: 33.89 N-cm (3 lb.-in.)
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Running Torque
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A & R Bushings: 0.21 to 1.06 N-cm (0.3 to 1.5 oz.-in.)
C & U Bushings: 0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.) |
Starting Torque
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0.3 max. above average running torque
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Mounting Torque
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1.7-2.0 N-m (15-18 lb.-in.) maximum |
Torque Variation
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0.35 N-cm (0.5 oz.-in.) max. in 45° shaft travel |
Weight
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Single Section, Metal Bushing: 12.7 grams nominal
Each Additional Section: 4 grams nominal |
Terminals
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Printed circuit terminals, J-Hooks or solder lugs |
Soldering Condition
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Recommended hand soldering using Sn95/Ag5 no clean solder, 0.025" wire diameter.
Maximum temperature 399°C (750°F) for 3 seconds. No wash process to be used with no clean flux. |
Marking
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Manufacturer’s trademark, date code, resistance, manufacturer’s part number |
Ganging
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2 Potentiometer modules maximum |
Hardware
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One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number. |
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Environmental Specifications
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Operating Temperature Range
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-40°C to +125°C
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Storage Temperature Range
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-55°C to +125°C
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Temperature Coefficient Over Storage Temperature Range |
Conductive Plastic: ±1,000 ppm/°C
Cermet: ±150 ppm/°C
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Vibration 15 G (Single Section) |
Total Resistance Shift: ±2% maximum
Voltage Ratio Shift: ±5% maximum
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Shock 30 G (Single Section)
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Total Resistance Shift: ±2 % maximum
Voltage Ratio Shift: ±5 % maximum |
Load Life 1,000 hours
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Total Resistance Shift
Conductive Plastic: ±10% maximum
Cermet: ±5% maximum |
Rotational Life (No Load) 100,000 cycles
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Total Resistance Shift
CP Linear taper: 10 ohms or ±15% TRS max.
(whichever is greater)
CP Audio taper: ±20% maximum
Cermet All tapers: ±5% TRS maximum |
Contact Resistance Variation—50,000 cycles
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Linear taper: ±2%
Audio taper: ±3% |
Moisture Resistance MIL-STD-202, Method 103B, Condition B
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Total Resistance Shift
CP Linear taper: ±10% TRS maximum
CP Audio tapers: ±20% TRS maximum
Cermet All tapers: ±5% TRS maximum
Insulation Resistance (500 VDC):
100 megohms minimum |
IP Rating
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IP40
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