157B203MX

Model 157 www.vishay.com 7/ Vishay Spectrol 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 • Wide operating temperature range • Linearities down to ± 0.25 % special • Optional sealed construction (bushing mount only) • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912 QUICK REFERENCE DATA Sensor type ROTATIONAL, conductive plastic Output type Output by turrets Market appliance Dimensions Industrial 7/ " 8 (22.2 mm) ELECTRICAL SPECIFICATIONS PARAMETER MIL-PRF-39023 TEST PROCEDURES APPLY Resistance 1 k to 100 k Resistance Tolerance Special to ± 20 % ± 10 % Linearity Special to ± 2.0 % ± 0.25 % Temperature 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 M minimum, 500 VDC Output Smoothness 0.1 % MECHANICAL SPECIFICATIONS PARAMETER Weight 0.5 oz. maximum (14 g) Rotation Mount Bearing Type Operating Torque Starting Running 360° (continuous) BUSHING Sleeve bearing 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) Mechanical Tolerance (in/mm) (maximum) Shaft Runout (TIR) Pilot Dia Runout (TIR) Lateral Runout (TIR) 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) 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?91000 Model 157 www.vishay.com Vishay Spectrol ORDERING INFORMATION 1 5 7 B 5 0 3 MODEL STYLE OHMIC VALUE 157 B: Bushing S: servo 470 = 47  222 = 2.200  103 = 10 k For ohmic value range see electrical specification M C TOLERANCE ON OHMIC VALUE M = ± 20 % K = ± 10 % LINEARITY SPECIAL REQUEST X=±2% B = ± 0.50 % C = ± 0.25 % xxxx 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 ± 0.010 0.365 (9.27) 90° Ø 0.9.52 x 1.57 WIDE IMPERFECT THREAD AREA TERM 1 ± 0.031 0.875 (22.22) + 0.0000 Ø 0.2497 - 0.0003 (6.34) 0.312 (7.92) TERM 3 Ø 0.875 (22.2) TERM 2 0.176 TERMINAL RADIUS (4.47) Ø 0.050 (1.27) CW RETAINER: Ø 0.312 x 0.03 MAX. 3/ - 32 UNEF - 2A 8 0.455 ± 0.015 (11.56) Example of a marking for a standard part: 157-11103 2 LOCATING PIN Ø 0.062 x 0.062 (1.57 x 1.57) ± 0.010 0.125 (3.18) ± 0.015 0.345 (8.76) 0.062 (1.57) RETAINER Ø 0.20 MAX. x 0.02 MAX. (5.08) 0.062 (1.57) Ø 0.1248 Ø 0.1245 (3.17) 3 1 SCHEMATIC TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS ± 0.005 ANGLES ± 2° Revision: 06-Nov-15 SERVO MOUNT: 157S/157-2 Ø 0.070 (1.78) Ø 0.750 (19.05) 0.062 (1.57) 0.500 ± 0.031 (12.7) Ø 0.7500 (19.05) Ø 0.7495 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 Model 157 www.vishay.com Vishay Spectrol MATERIAL SPECIFICATIONS Housing/Bushing Aluminum, anodized Rear Lid Ceramic Shaft Stainless steel Terminals Bushing Mount Hardware Solderable Lockwasher, internal tooth steel, nickel plated Panel Nut Brass, nickel plated ENVIRONMENTAL SPECIFICATIONS Temperature Rotational Life -55 °C to +125 °C BUSHING 5 million shaft revolutions SERVO 10 million shaft revolutions Moisture Resistant Vibration Yes 15 g 10 to 2000 Hz Shock 50 g Salt Spray 96 h Load Life 900 h Note • Nothing stated herein shall be construed as a guarantee of quality or durability. Revision: 06-Nov-15 Document Number: 57042 3 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 Legal Disclaimer Notice www.vishay.com Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. 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