157S103MB9002 - VISHAY SPECTROL

Model 157

www.vishay.com Vishay Spectrol

Revision: 06-Nov-15 1Document 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: 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 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 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 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)

0.15 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)

Model 157

www.vishay.com Vishay Spectrol

Revision: 06-Nov-15 2Document 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

157B503MC

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)

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 0.20 MAX. x 0.02 MAX. (5.08)

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°

SCHEMATIC

± 0.031

Example of a marking for a standard part:

157-11103

Model 157

www.vishay.com Vishay Spectrol

Revision: 06-Nov-15 3Document 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

Legal Disclaimer Notice

www.vishay.com Vishay

Revision: 08-Feb-17 1Document Number: 91000

Disclaimer



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