Vishay/Spectrol Supplier Page

Model 157 Precision Industrial Bushing and Servo Mount Potentiometers


Vishay and Digi-Key introduce 22 mm potentiometers with conductive plastic technology


Precision Industrial Potentiometer
  • High quality
  • Rugged one piece metal housing
  • Long rotational life
  • Wide operating temperature rangeRoHS Compliant
  • Linearities down to ±0.25% special
  • Optional sealed construction (bushing mount only)

  • Features
  • Specifications
  • Buy Now

Features Applications
  • Long life: 10 million cycles (Servo), 5 million cycles (Bushing)
  • Optional special electrical angles
  • Cost-effective component solutions
  • Temperature range of -55°C to +125°C
  • 22.2 mm external diameter
  • Lead (Pb)-free
  • Servo control of industrial valves
  • Various functions for fork-lift trucks and tractors, joysticks, wheel balancing equipment for cars





Electrical Specifications
Parameter MIL-PRF-39023 Test Procedures Apply
Resistance 1 KΩ to 100 KΩ
Resistance Tolerance
Special to
±20%
±10%
Linearity
Special to
±2.0%
±0.25%
Temp. Coefficient
of Resistance
±600 ppm/°C
Power Rating
Derated to
1.0 W at 40°C ambient
0 W at 125°C
Electrical Angle 340° ±4°
End Voltage 0.5% maximum
Dielectric Withstanding 1000 VRMS, 60 Hz
Insulation Resistance 100 MΩ minimum, 500 VDC
Output Smoothness 0.1%
Mechanical Specifications
Parameter
Weight 0.5 oz. max. (14 g)
Rotation 360° (continuous)
Mount Bearing Type Bushing
(Sleeve Bearing)
Servo
(Ball Bearing)
Operating Torque
Starting
Running
 
0.30 oz.-in (21.6 g-cm)
0.25 oz.-in (18 g-cm)
 
0.25 oz.-in (18 g-cm)
0.15 oz.-in (10.8 g-cm)
Mechanical Tolerance
    (in/mm) (max.)
Shaft Runout (TIR)
Pilot Dia Runout (TIR)
Lateral Runout (TIR)
Shaft End Play
Shaft Radial Play
 
 
0.002" (0.05 mm)

0.005" (0.13 mm)
0.006" (0.15 mm)
0.003" (0.08 mm)
 
 
0.002" (0.05 mm)
0.002" (0.05 mm)
0.002" (0.05 mm)
0.005" (0.13 mm)
0.002" (0.05 mm)

More Information: Datasheet Conductive Plastic Technology

Digi-Key P/N Vishay P/N Mount Bearing Type Resistance Number of Turns
SP157P-1.0K-ND 157-11102 Bush 1.00 KΩ 1
SP157P-10K-ND 157-11103 Bush 10.0 KΩ 1
SP157P-100K-ND 157-11104 Bush 100 KΩ 1
SP157P-2.0K-ND 157-11202 Bush 2.00 KΩ 1
SP157P-20K-ND 157-11203 Bush 20.0 KΩ 1
SP157P-5.0K-ND 157-11502 Bush 5.00 KΩ 1
SP157P-50K-ND 157-11503 Bush 50.0 KΩ 1
SP157S-1.0K-ND 157-21102 Servo 1.00 KΩ 1
SP157S-10K-ND 157-21103 Servo 10.0 KΩ 1
SP157S-2.0K-ND 157-21202 Servo 2.00 KΩ 1
SP157S-5.0K-ND 157-21502 Servo 5.00 KΩ 1