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: [email protected] 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: [email protected] 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: [email protected] 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. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special, consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose, non-infringement and merchantability. Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein. Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining applications or for any other application in which the failure of the Vishay product could result in personal injury or death. Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners. Material Category Policy Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment (EEE) - recast, unless otherwise specified as non-compliant. Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU. Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21 conform to JEDEC JS709A standards. Revision: 02-Oct-12 1 Document Number: 91000