www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 54008
28 Revision: 24-May-07
Series ECS
Vishay Sfernice
Precision Rotative Transducers,
Conductive Plastic, Economic Series (ECS)
FEATURES
•Size 09: (7/8") 22,2 mm
•Long life: 5 million cycles
•Bush or servo mounting types available
•Rear comolded terminals
•Cost effective solution for any industrial applications
Low cost industrial motion transducers, conductive plastic
t
rack.
RoHS
COMPLIANT
SIZE 09
MODEL 78 RS 78 RB 78 PS 78 PB
ELECTRICAL SPECIFICATIONS
Theoretical Electrical Angle (TEA) (AEA) - 3°
Independent Linearity (over TEA)
A
≤
± 1 %, on request: B
≤
± 0.5 % C
≤
± 0.35 %
A ≤ ± 2 %
Actual Electrical Angle (AEA) 340° ± 5°
Ohmic Values (RT) 1 - 2 - 5 - 10 kΩ (on request other values) 1 - 2 - 5 - 10 kΩ
Ohmic Value Tolerances at 20 °C Standard: ± 20 %/special: ± 10 % ± 20 %
Output Smoothness 0.1 %
Maximum Power Rating at 70 °C 0.3 W
Wiper Current Recommended: a few µA - 1 mA max. (continuous)
Tap (Current or Voltage) 1: On request NA
Resistance Load on Wiper ≥ 1000 x RT
End Voltage ≤ 0.5 %DC
Insulation Resistance ≥ 1000 MΩ, 500 VDC
Dielectric Strength ≥ 500 VRMS, 50 Hz
MECHANICAL SPECIFICATIONS
Mechanical Angle (MA) 360° continuous
On Request: Stops 342° ± 5°
Mounting Type Servo Bushing Servo Bushing
Shaft Guiding Sleeve bearings
Shaft Stainless steel
Option: Flat or Screw Driver Slot On Shaft On request NA
Termination Turrets
Wiper Precious metal multi-finger contact
Starting Torque (N.cm) ≤ 0.5
Torque on Stops (N.cm) ≥ 20
Weight (g) Bushing 17 g ± 3 g Servo 12 g ± 3 g
PERFORMANCE
Life (106 Cycles) 5
Temperature Range - 55 °C to + 125 °C
Climatic Category 55/125/04
Speed Rotation (RPM) 150
Sine Vibration on 3 Axes 15 g from 10 Hz to 2000 Hz
Mechanical Shocks on 3 Axes 50 g - 11 ms - half sine
Document Number: 54008 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 24-May-07 29
Series ECS
Precision Rotative Transducers,
Conductive Plastic, Economic Series (ECS)
Vishay Sfernice
Notes:
(1) On request: Ø 10.3 mm or 12.3 mm
(2) On request: without antirotation pin
DIMENSIONS in millimeters, general tolerance ± 0.5 mm
78 PB
78 RB
SIZE 09
8
7.92 ± 0.13
Ø 1.6 ± 0.1 (2)
× 1.6
Ø 22.2 ± 0.13
Ø 9.52
± 0.1 (1) Ø 9.52 × 0.79
3/8 - 32 NEF - 2A
Ø 6.35
Ø 8 MAX.
7 MIN.
9.3 ± 0.25
22.2 ± 0.8
8 ± 0.4
2.5 MAX.
78 PS
78 RS
SIZE 09
Ø 22.2 ± 0.13
Ø 3.175 + 0
- 0.013
Ø 19.8
MAX.
12.7 ± 0.8
12.4 ± 0.4
2.5 max.
1.6
1.6
1.5 MIN.
+ 0.1
- 0.1
+ 0.1
- 0.1
Ø 19.05 + 0
- 0.05
+ 0.1
- 0.1
REAR VIEW DIMENSIONS in millimeters, general tolerance 0.5 mm
General Tolerance ± 0.5 mm
STANDARD
3 TURRETS
SIZE 09
Ø 9.6
1
23
90°
Ø 8.6
90°
31
Ø 1.6
3.7 MAX.
SPECIAL
(4 TURRETS)
INTERMEDIATE TAP ON REQUEST
2
4
ORDERING INFORMATION/DESCRIPTION
ECS 78P S M A T 103 e4
SERIES MODEL TYPE FIXATION MECHANICAL
STOPS LINEARITY TAP OHMIC VALUE
LEAD
P
S: Servo On request A: ± 1% or ± 2 % On request 102: 1 kΩFinish
R
B: Bushing M B: ± 0.5 % T: Voltage 202: 2 kΩ
C: ± 0.35 % U: Current 502: 5 kΩ
position to 103: 10 kΩ
be specified
SAP PART NUMBERING GUIDELINES
ECS 78RB B 102
SERIES MODEL LINEARITY OHMIC VALUE
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 12-Mar-12 1Document Number: 91000
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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 in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the 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 special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
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
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms 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 products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
obtain written terms and conditions regarding products designed for such applications.
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. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
