157S502MX Vishay

Model 157 www.vishay.com Vishay Spectrol 7 / (22.2 mm) Precision Industrial Potentiometer, 8 Bushing And Servo Mount Versions, Conductive Plastic FEATURES High quality Rugged one piece metal housing Long rotational life Wide operating temperature range Linearities down to 0.25 % special Optional sealed construction (bushing mount only) Material categorization: for definitions of compliance QUICK REFERENCE DATA please see www.vishay.com/doc?99912 Sensor type ROTATIONAL, conductive plastic Output type Output by turrets Market appliance Industrial 7 Dimensions / (22.2 mm) 8 ELECTRICAL SPECIFICATIONS PARAMETER MIL-PRF-39023 TEST PROCEDURES APPLY Resistance 1 k to 100 k Resistance Tolerance 20 % Special to 10 % Linearity 2.0 % Special to 0.25 % Temperature Coefficient of Resistance 600 ppm/C Power Rating 1.0 W at 40 C ambient Derated to 0 W at 125 C Electrical Angle 340 4 End Voltage 0.5 % maximum Dielectric Withstanding 1000 V , 60 Hz RMS Insulation Resistance 100 M minimum, 500 V DC Output Smoothness 0.1 % MECHANICAL SPECIFICATIONS PARAMETER Weight 0.5 oz. maximum (14 g) Rotation 360 (continuous) Mount BUSHING SERVO Bearing Type Sleeve bearing Ball bearing Operating Torque Starting 0.30 oz. - in (21.6 g - cm) 0.25 oz. - in (18 g - cm) Running 0.25 oz. - in (18 g - cm) 0.15 oz. - in (10.8 g - cm) Mechanical Tolerance (in/mm) (maximum) Shaft Runout (TIR) 0.002" (0.05 mm) 0.002" (0.05 mm) Pilot Dia Runout (TIR) - 0.002" (0.05 mm) Lateral Runout (TIR) 0.005" (0.13 mm) 0.002" (0.05 mm) Shaft End Play 0.006" (0.15 mm) 0.005" (0.13 mm) Shaft Radial Play 0.003" (0.08 mm) 0.002" (0.05 mm) Revision: 06-Nov-15 Document Number: 57042 1 For technical questions, contact: sferprecisionpot@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000Model 157 www.vishay.com Vishay Spectrol ORDERING INFORMATION 157 B 503 M C TOLERANCE ON MODEL STYLE OHMIC VALUE LINEARITY SPECIAL REQUEST OHMIC VALUE 157 B: Bushing 470 = 47 M = 20 % X = 2 % xxxx 222 = 2.200 S: servo K = 10 % B = 0.50 % 103 = 10 k C = 0.25 % For ohmic value range see electrical specification PART NUMBER DESCRIPTION (for information only) 157- 2 503 xxxx MODEL STYLE OHMIC VALUE SPECIAL B: 1 S: 2 DIMENSIONS in inches (millimeters) BUSHING MOUNT: 157B/157-1 0.031 0.010 0.875 0.365 (22.22) (9.27) + 0.0000 90 0.9.52 x 1.57 WIDE 0.2497 - 0.0003 IMPERFECT (6.34) THREAD AREA 0.312 TERM 1 TERM 3 (7.92) 0.875 (22.2) TERM 2 0.010 LOCATING PIN 0.125 0.062 x 0.062 (3.18) 0.176 TERMINAL (1.57 x 1.57) 0.015 RADIUS (4.47) 0.345 RETAINER: 0.312 x 0.03 MAX. (8.76) 3 / - 32 UNEF - 2A 8 0.015 0.455 (11.56) Example of a marking for a standard part: RETAINER 157-11103 0.062 (1.57) 0.20 MAX. x 0.02 MAX. (5.08) 0.062 (1.57) 0.1248 2 0.050 0.1245 CW (1.27) (3.17) 1 3 SCHEMATIC SERVO MOUNT: 0.070 (1.78) 157S/157-2 0.750 0.7500 (19.05) (19.05) TOLERANCES: UNLESS OTHERWISE NOTED. 0.7495 0.062 (1.57) DECIMALS 0.005 ANGLES 2 0.031 0.500 (12.7) Revision: 06-Nov-15 Document Number: 57042 2 For technical questions, contact: sferprecisionpot@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000