157 VISHAY

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Technical content

www.vishay.com Vishay Spectrol Revision: 06-Nov-15 1 Document Number: 57042 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 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
  • Wide operating temperature range
  • Linearities down to ± 0.25 % special
  • Optional sealed construction (bushing mount only)
  • Material categorization: fo r 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 Industrial Dimensions 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 V RMS, 60 Hz Insulation Resistance 100 M  minimum, 500 VDC Output Smoothness 0.1 % MECHANICAL SPECIFICATIONS PARAMETER Weight 0.5 oz. maximum (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) (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)

www.vishay.com Vishay Spectrol Revision: 06-Nov-15 2 Document Number: 57042 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 DIMENSIONS in inches (millimeters)

ORDERING INFORMATION

MODEL STYLE OHMIC VALUE TOLERANCE ON OHMIC VALUE LINEARITY SPECIAL REQUEST

157 B : Bushing

S: servo 470 = 47  222 = 2.200  103 = 10 k For ohmic value range see electrical specification M = ± 20 % K = ± 10 % 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 BUSHING MOUNT: 157B/157-1 0.455 (11.56) ± 0.015 0.062 (1.57) 0.062 (1.57) Ø 0.1248 Ø 0.1245 (3.17) 0.062 (1.57) 0.500 (12.7) Ø 0.750 (19.05) Ø 0.070 (1.78) Ø 0.050 (1.27) RETAINER Ø 0.7500 (19.05) Ø 0.7495 SERVO MOUNT: 157S/157-2 0.875 (22.22) ± 0.031 Ø 0.2497 (6.34) RETAINER: Ø 0.312 x 0.03 MAX. 3/8 - 32 UNEF - 2A 0.345 (8.76) ± 0.015 0.125 (3.18) ± 0.010 Ø 0.9.52 x 1.57 WIDE IMPERFECT THREAD AREA 0.365 (9.27) ± 0.010 0.312 (7.92) LOCATING PIN Ø 0.062 x 0.062 (1.57 x 1.57) TERM 1 TERM 2 TERM 3 90° Ø 0.875 (22.2)

0.176 TERMINAL

RADIUS (4.47) + 0.0000 - 0.0003 TOLERANCES: UNLESS OTHERWISE NOTED. DECIMALS ± 0.005 ANGLES ± 2° CW SCHEMATIC ± 0.031 Example of a marking for a standard part: 157-11103

www.vishay.com Vishay Spectrol Revision: 06-Nov-15 3 Document Number: 57042 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 Note

  • Nothing stated herein shall be construed as a guarantee of quality or durability. MATERIAL SPECIFICATIONS Housing/Bushing Aluminum, anodized Rear Lid Ceramic Shaft Stainless steel Terminals Solderable Bushing Mount Hardware Lockwasher, internal tooth steel, nickel plated Panel Nut Brass, nickel plated ENVIRONMENTAL SPECIFICATIONS Temperature -55 °C to +125 °C Rotational Life BUSHING 5 million shaft revolutions SERVO 10 million shaft revolutions Moisture Resistant Yes Vibration 15 g 10 to 2000 Hz Shock 50 g Salt Spray 96 h Load Life 900 h

www.vishay.com Vishay Revision: 13-Jun-16 1 Document Number: 91000 Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA AR E SUBJECT TO CHANGE WITH OUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employee s, and all persons acting on it s or their behalf (collectivel y, “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 th e 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 specia l, consequential or incidental damages, and (iii) any and all implied warranties, includ ing warranties of fitness for particular purpose, non-infringement and merchantability. Statements regarding the suitability of products for certain types of applicatio ns 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 applic ation. It is the customer’s responsibility to validate tha t a particular product with the prope rties described in the product sp ecification is suitable for use in a particular application. Parameters provided in datasheets and / or specifications may vary in different ap plications 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 term s 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 product s not expressly indicated for use in such applications do so at their own risk. Please contact authorized Vishay personnel to obtain writ ten terms and conditions rega rding products designed for such applications. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is gran ted by this document or by any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.