MODEL142 datasheet(2/3 Pages) VISHAY

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Model 142

1/2" (12.7 mm) Single - Turn Wirewound

Servo Mount Type Precision Potentiometer

Vishay Spectrol

Document Number: 57039

For technical questions, contact: sfer@vishay.com

www.vishay.com

Revision: 28-Jun-07

DIMENSIONS in inches (millimeters)

MECHANICAL SPECIFICATIONS

PARAMETER

Rotation

360° continuous

Bearing Type

Torque (Maximums)

Starting

Running

Dead Zone

BALL BEARING

0.075 oz. - in (5.40 g - cm)

0.05 oz. - in (3.60 g - cm)

0.20 oz. - in (14.40 g - cm)

Weight

0.3 oz. (8.50 g) maximum

Runouts (Maximum)

Shaft (TIR)

Pilot Dia. (TIR)

Lateral (TIR)

Shaft End Play

Shaft Radial Play

0.002" (0.05 cm)

0.004" (0.10 cm)

0.002" (0.05 cm)

POWER RATING CHART

MARKING

Unit

Identification

Units shall be marked with manufacturer’s name,

model number, resistance value and tolerance,

circuit diagram, terminal identification, linearity

and data code

80 100 120 140

160

AMBIENT TEMPERATURE IN °C

RESISTANCE ELEMENT DATA

STD

RESISTANCE

VALUES

(

Ω)

RESO-

LUTION

(%)

OHMS

PER

TURN

MAXIMUM

CURRENT

AT 40 °C

AMBIENT

(mA)

MAXIMUM

VOLTAGE

ACROSS

COIL

(V)

WIRE

TEMP.

COEF.

(ppm/°C)

0.542

0.271

200.0

10.0

100

0.431

141.0

14.1

200

0.361

0.722

100.0

20.0

500

0.312

1.56

63.2

31.6

0.255

2.55

44.7

0.197

3.94

31.6

63.2

0.170

8.50

20.0

100.0

10K

0.147

14.7

14.1

141.0

20K

0.105

21.0

10.0

200.0

150°

60°

CENTER TAP AVAILABLE AS

SPEC STANDARD FEATURE

Ø 0.4370 MTG.

(11.10)

± 0.0005

Ø 0.1248

(3.17)

+ 0.000

- 0.0003

Ø 0.500

(12.70)

0.500

(12.70)

+ 0.010

0.062 (1.57)

MTG. FACE

0.625

(15.88)

0.062

(1.57)

0.062

(1.57)

0.152

(3.86)

CENTER TAP OPTION

TOLERANCES: UNLESS

OTHERWISE NOTED.

DECIMALS ± 0.005 ANGLES ± 2°

120°

TYP.

0.133 R

(3.38)

Ø 0.375

(9.52)

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