MODEL157 Datasheet, PDF (1/3 Pages) Vishay Siliconix – 7/8 (22.2 mm) Precision Industrial Potentiometer Bushing and Servo Mount Versions, Conductive Plastic

Model 157
Vishay Spectrol
7_{/8" (22.2 mm) Precision Industrial Potentiometer}
Bushing and Servo Mount Versions, Conductive Plastic
FEATURES
• High quality
• Rugged one piece metal housing
• Long rotational life
RoHS
COMPLIANT
• Wide operating temperature range
• Linearities down to ± 0.25 % special
• Optional sealed construction (bushing mount only)
ELECTRICAL SPECIFICATIONS
PARAMETER
Resistance
Resistance Tolerance
Special to
Linearity
Special to
Temperature Coefficient of Resistance
Power Rating
Derated to
Electrical Angle
End Voltage
Dielectric Withstanding
Insulation Resistance
Output Smoothness
MIL-PRF-39023 TEST PROCEDURES APPLY
1 kΩ to 100 kΩ
± 20 %
± 10 %
± 2.0 %
± 0.25 %
± 600 ppm/°C
1.0 W at 40 °C ambient
0 W at 125 °C
340° ± 4°
0.5 % maximum
1000 V_RMS, 60 Hz
100 MΩ minimum, 500 V_DC
0.1 %
MECHANICAL SPECIFICATIONS
PARAMETER
Weight
Rotation
Mount
Bearing Type
Operating Torque
Starting
Running
Mechanical Tolerance (in/mm) (maximum)
Shaft Runout (TIR)
Pilot Dia Runout (TIR)
Lateral Runout (TIR)
Shaft End Play
Shaft Radial Play
BUSHING
Sleeve bearing
0.5 oz. maximum (14 g)
360° (continuous)
SERVO
Ball bearing
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)
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)
ORDERING INFORMATION/DESCRIPTION
157
B
50K
MODEL
MOUNTING
OHMIC VALUE
B = Bushing
S = Servo
20 %
TOLERANCE
ON OHMIC VALUE
C
LINEARITY
C: ± 0.25 %
BO10
PACKAGING
Box of 10 pieces
www.vishay.com
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For technical questions, contact: [e-mail]
Document Number: 57042
Revision: 18-Jun-07