Series ECO
www.vishay.com Vishay Sfernice
Revision: 05-Sep-18 1Document Number: 54007
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
Precision Rotative Transducers,
Conductive Plastic, Economic Series (ECO)
The “ECO” models are a comprehensive range of rational
motion transducers for industrial applications.
All mechanical and electrical parameters can be adapted to
meet your specifications.
FEATURES
• Size 05 - 09 - 13 are available
• Long life up to 30 million cycles
• Accuracy ± 1 % down to ± 0.25 %
• Bush or servo mounting types
• Rear mounted terminals
• Following MIL-R-39023 and NFC 93-255 requirements
• 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 Various sizes
RoHS
COMPLIANT
SIZE 05 09 13
MODEL 50 ES 50 CB 78 ES 78 CS 78 CB 156 ES 156 CS 156 CB
ELECTRICAL SPECIFICATIONS
Theoretical electrical travel (TET) Actual electrical angle (AEA) - 2°
Independent linearity (over TET) A ± 1 %
(standard)
B ± 0.5 %
(special)
C ± 0.25 %
(special)
Actual electrical travel (AET) 330° ± 5° 340° ± 5° 350° ± 5°
Ohmic values (RT) 1 k - 5 k - 10 k - on request other values
Ohmic value tolerances at 20 °C ± 10 % ± 20 % ± 10 % ± 20 % ± 10 % ± 20 %
Output smoothness 0.05 %
Maximum power rating at 70 °C 0.2 W 0.3 W 0.5 W
Wiper current Recommended: a few μA - 1 mA max. (continuous)
Tap (current or voltage) NA 1 (on request)
Resistance load on wiper Minimum 103 x RT
End voltage 0.2 % 0.5 % 0.2 % 0.5 % 0.2 % 0.5 %
Insulation resistance 1000 M, 500 VDC
Dielectric strength 500 VRMS, 50 Hz
MECHANICAL SPECIFICATIONS
Mechanical angle (MA) 360° continuous
On request: stops NA 340° ± 3° 350° ± 3°
Mounting type Servo Bushing Servo Bushing Servo Bushing
Shaft guiding Ball
bearings
Sleeve
bearings
Ball
bearings
Sleeve
bearings
Ball
bearings
Sleeve
bearings
Shaft Stainless steel
Housing Plastic molding
Termination Turrets
Wiper Precious metal multi-finger contact
Starting torque (N.cm) in TET 0.2 0.5 0.2 0.5 0.2 0.5
Torque on stops (N.cm) 50
Weight (g) 5 ± 2 8 ± 2 13 ± 2 17 ± 2 29 ± 2 34 ± 2
Moment of inertia (g cm2) 0.5 1 2
Series ECO
www.vishay.com Vishay Sfernice
Revision: 05-Sep-18 2Document Number: 54007
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
• Life under Vishay laboratory conditions
PERFORMANCE
MODELS ES CS and CB
Life (106 cycles) 30 20
Temperature range -55 °C to +125 °C
Climatic category 55/125/04
Speed rotation (RPM) 600 150
Sine vibration on 3 axes 1.5 mm or 20 g from 10 Hz to 2000 Hz
Mechanical shocks on 3 axes 50 g - 11 ms - half sine
DIMENSIONS in millimeters, general tolerance ± 0.5 mm
SIZE 05/09/13
SERVO MOUNT TYPE
50 ES
78 ES
78 CS
156 ES
156 CS
DIMENSIONS DESIGNATION SIZE 05 SIZE 09 SIZE 13
50 ES 78 ES 78 CS 156 ES 156 CS
Ø A Ø housing 12.7 22.2 33.3
B Length 13.0 13.5 18.0
Ø C Ø pilot 9.525 19.05 30.16
Ø D max. Ø groove 11.45 19.64 30.9
F Flange thickness 1 ± 0.1 1.6 ± 0.1
G Shoulder 1.2 ± 0.1 1.6 ± 0.1
H Dia. of groove 1.2 ± 0.2 1.5 min.
I max. Height of the turret 2.5 2.5 3.6
SIZE 05/09/13
BUSHING MOUNT TYPE
50 CB
78 CB
156 CB
DIMENSIONS DESIGNATION SIZE 05 SIZE 09 SIZE 13
50 CB 78 CB 156 CB
Ø A Ø housing 12.7 22.2 33.3
B max. Length 11 11.5 16
C max. Height of the turret 2.5 2.5 3.6
12.7
Ø C
+ 0
- 0.025
Ø 3.175
- 0
- 0.013
GH
Ø D MAX.
B
X
X
0.05
T
X
0.05
F
0.4 x 45
I
± 0.8
Ø A
10.3 ± 0.13
1.6
22.2 MAX. B MAX.
0.4 x 45
9.6 MAX.
1
Ø 9.52
x 0.79
Ø 5.1 MAX.
Ø A
C
Ø 3.175
- 0
- 0.013
Series ECO
www.vishay.com Vishay Sfernice
Revision: 05-Sep-18 3Document Number: 54007
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
Special characteristics and designs on request
DIMENSIONS in millimeters, general tolerance ± 0.5 mm
ORDERING INFORMATION/DESCRIPTION
ECO 78 E S A T 103 e4
SERIES MODEL TYPE FIXATION LINEARITY
CODE
TAP OHMIC VALUE LEAD FINISH
E = Ball bearings
C = Sleeve bearings
S: Servo
B: Bushing
A: ± 1 %
B: ± 0.5 %
C: ± 0.25 %
On request
T: Voltage
U: Current
position to
be specified
First 2 digits are
significant
numbers 3rd digit
indicates number
of zeros
SAP PART NUMBERING GUIDELINES
ECO 78CB C 502
SERIES MODEL LINEARITY OHMIC VALUE
R = 3.7
1
2
3
SIZE 05
45° ± 5°
45° ± 5°
R = 4.8
1
CW
2
3
SIZE 09
45° ± 5°
45° ± 5°
R = 4.8
1
2
3
4
R = 11
INTERMEDIATE TAP
ON REQUEST
4
SIZE 13
45° ± 5°
45° ± 5°
INTERMEDIATE TAP
ON REQUEST
1
2
3
4
3.5 MAX.
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“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.
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the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
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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
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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
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