Model 142
Vishay Spectrol
(12.7 mm) Single - Turn Wirewound
Servo Mount Type Precision Potentiometer
FEATURES
•
Ohmic value range: 50
Ω
up to 20 kΩ
•
Smallest size available: 12.7 mm
•
Center tap on request
•
Custom shafts available on request
1
/
2
"
RoHS
COMPLIANT
ELECTRICAL SPECIFICATIONS
PARAMETER
Total Resistance
Tolerance
Absolute Minimum Resistance
Linearity (Independent)
Noise
Power Rating
Insulation Resistance
Dielectric Strength
Electrical Angle
End Voltage
50
Ω
to 20 kΩ
±5%
Linearity x total resistance or
0.5
Ω,
whichever is greater
± 1.0 %
100
Ω
ENR
2 W at 40 °C ambient derating linearly to zero at 125 °C
1000 MΩ min. 500 V
DC
1000 V
RMS
, 60 Hz
350° + 0° - 4°
Linearity x total applied voltage for total resistance above 20
Ω;
2.0 % of total applied voltage for 20
Ω
and below
MATERIAL SPECIFICATIONS
Shaft
Housing
Rear Lid
Terminals
Stainless steel, non magnetic
non-passivated
Aluminum, anodized
Molded glass filled
thermoset plastic
Brass, gold plated
ENVIRONMENTAL SPECIFICATIONS
Vibration
Shock
Salt Spray
Rotational Life
Load Life
Temperature Range
20 G thru 2000 Hz
50 g
96 h
500 000
shaft revolutions
900 h
- 55 °C to + 125 °C (operating)
ORDERING INFORMATION/DESCRIPTION
142S
MODEL
0
MECHANICAL OPTIONS
0.
Continuous rotation,
plain shaft (std.)
0
SPECIAL FEATURE
0.
Standard torque
1.
Center tap (10K max. Rt)
10K
OHMIC VALUE
BO10
PACKAGING
Box of 10 pieces
SAP PART NUMBERING GUIDELINES
142S
MODEL
0
MECHANICAL OPTIONS
1
SPECIAL FEATURE
1: With center tap
502
OHMIC VALUE
502 = 5K
B10
PACKAGING
Box of
10 pieces
Document Number: 57039
Revision: 28-Jun-07
www.vishay.com
90
For technical questions, contact: sfer@vishay.com
Model 142
(12.7 mm) Single - Turn Wirewound
Servo Mount Type Precision Potentiometer
DIMENSIONS
in inches (millimeters)
120°
TYP.
CW
1
/
2
"
Vishay Spectrol
0.133 R
(3.38)
CENTER TAP OPTION
Ø 0.375 Ø 0.500
(9.52) (12.70)
0.062
(1.57)
0.062
(1.57)
0.625
(15.88)
± 0.0005
+ 0.010
150°
0.152
(3.86)
0.500
(12.70)
Ø 0.4370 MTG.
(11.10)
+ 0.000
Ø 0.1248
- 0.0003
0.062 (1.57) (3.17)
MTG. FACE
60°
CENTER TAP AVAILABLE AS
SPEC STANDARD FEATURE
TOLERANCES: UNLESS
OTHERWISE NOTED.
DECIMALS ± 0.005 ANGLES ± 2°
MECHANICAL SPECIFICATIONS
PARAMETER
Rotation
Bearing Type
Torque (Maximums)
Starting
Running
Dead Zone
Weight
Runouts (Maximum)
Shaft (TIR)
Pilot Dia. (TIR)
Lateral (TIR)
Shaft End Play
Shaft Radial Play
360° continuous
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)
0.3 oz. (8.50 g) maximum
0.002" (0.05 cm)
0.002" (0.05 cm)
0.002" (0.05 cm)
0.004" (0.10 cm)
0.002" (0.05 cm)
POWER RATING CHART
RATED POWER IN W
2
RESISTANCE ELEMENT DATA
STD
RESISTANCE
VALUES
(Ω)
50
MAXIMUM MAXIMUM
WIRE
RESO- OHMS CURRENT VOLTAGE TEMP.
LUTION PER
AT 40 °C ACROSS
COEF.
(%)
TURN AMBIENT
COIL
(ppm/°C)
(mA)
(V)
0.542
0.431
0.361
0.312
0.255
0.197
0.170
0.147
0.105
0.271
0.431
0.722
1.56
2.55
3.94
8.50
14.7
21.0
200.0
141.0
100.0
63.2
44.7
31.6
20.0
14.1
10.0
10.0
14.1
20.0
31.6
44.7
63.2
100.0
141.0
200.0
20
20
20
20
20
20
20
20
20
1
100
200
0
0
20
40
60
80 100 120 140 160
500
1K
2K
5K
10K
20K
AMBIENT TEMPERATURE IN °C
MARKING
Units shall be marked with manufacturer’s name,
Unit
model number, resistance value and tolerance,
Identification
circuit diagram, terminal identification, linearity
and data code
Document Number: 57039
Revision: 28-Jun-07
For technical questions, contact: sfer@vishay.com
www.vishay.com
91
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
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 herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
www.vishay.com
1
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