POHR36, POHR44, POTH44, POTH50, POTH76
www.vishay.com
Vishay MCB
Single-Turn Continuous Rotation Analog Displacement Sensors
FEATURES
• Conductive plastic potentiometer technology, infinite
resolution
• Servo mount anodized light alloy housing
• Precious metal contacts
• Stainless steel shaft and bearings
• Applicable standards: NFC 93255, MIL R39023
QUICK REFERENCE DATA
Sensor type
Output type
Market appliance
Dimensions
ROTATIONAL, conductive plastic
Output by turrets
Industrial, avionics
Ø 36, Ø 44, Ø 50, Ø 76
ELECTRICAL SPECIFICATIONS
PARAMETER
Theoretical electrical travel (TET)
Standard linearity (
Optional linearity (
Total resistance range (E3)
Tolerance on R
n
Output smoothness
Power rating at 70 °C
Temperature coefficient
Wiper current
Recommended load impedance
Insulation resistance
Dielectric strength
2W
2.5 W
POHR36
350° ± 3°
± 0.5 %
POHR44
350° ± 3°
± 0.5 %
POTH44
350° ± 3°
± 0.5 %
± 0.25 %, ± 0.1 %,
± 0.05 %
4.7 k or 10 k
± 10 %, ± 5 % optional
0.1 %
2.5 W
-300 ± 300 ppm/°C
1 mA
1000 R
n
10 G at 500 V
DC
1000 V
RMS
, 50 Hz, 1 min
3W
4W
POTH50
350° ± 2°
± 0.25 %
POTH76
350° ± 1°
± 0.1 %
± 0.25 %, ± 0.1 %, ± 0.25 %, ± 0.1 %,
± 0.05 %
± 0.05 %
4.7 k or 10 k
4.7 k or 10 k
± 0.1 %, ± 0.05 %,
± 0.05 %, ± 0.02 %
± 0.03 %
4.7 k or 10 k
4.7 k or 10 k
MECHANICAL SPECIFICATIONS
PARAMETER
Size
Running and starting torque (cN cm)
Moment of inertia (g cm
2
)
Weight (g)
Protection class
first stage
additional stage
first stage
additional stage
first stage
additional stage
POHR36
15
20
18
2.2
0.6
50
12
POHR44
18
20
18
2.6
0.6
80
12
POTH44
18
20
18
6
5
100
50
IP50
POTH50
20
25
22
8
6
100
55
POTH76
30
35
30
20
17
230
80
PERFORMANCE
PARAMETER
Life
Temperature range
Rotation speed
Note
• Nothing stated herein shall be construed as a guarantee of quality or durability.
Revision: 20-Oct-15
Document Number: 32521
1
For technical questions, contact:
mcbprecisionpot@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
25M cycles
-55 °C to +125 °C
600 rpm
POHR36, POHR44, POTH44, POTH50, POTH76
www.vishay.com
Vishay MCB
GANG
VALUE
472 = 4K7
103 = 10K
LINEARITY
B = 0.5 %
C = 0.25 %
D = 0.1 %
E = 0.05 %
(see “Electrical
Specifcations”)
ANGLE
350
PACKAGING
b = box
SAP PART NUMBERING GUIDELINES
MODEL
POTH
SIZE (mm)
44
50
76
36
44
1
2
3
4
5
6
7
8
(max. number of stages:
see “Dimensions”)
POHR
DIMENSIONS
in millimeters
POHR36
9 min.
20°
20°
Ø 33.4 max.
0
Ø 33.324
- 0.013
0
Ø 6.35
- 0.013
Ø 6.35
- 0
0.013
1.6 ± 0.1
1.6 ± 0.1
25 ± 0.5
1.9
+ 0.2
- 0.1
L ± 0.5
1.5
slot
width 0.8 ± 0.2 depth 1 ± 0.4
Approximate electrical zero
12.5
Number of cups:
L:
POHR44
1
21
2
26
L ± 0.5
10.7
3
31
4
36
Ø 12
Ø 36.7 max.
0
Ø 36.5
- 0.1
5
41
6
46
7
51
R
22
.5
ma
x
.
8
56
20°
20°
R
0
6.35
- 0.013
26
.5
m
ax
.
0
Ø 39.674
- 0.013
Ø 41.4 max.
Ø 12
1.6 ± 0.1
1.6 ± 0.1
25 ± 0.5
1.5
Approximate electrical zero
1.9
+ 0.2
- 0.1
slot
width 0.8 ± 0.2 depth 1 ± 0.4
Number of cups:
L:
Revision: 20-Oct-15
1
21
2
26
3
31
4
36
Ø 44.7 max.
Ø 44.45
- 0
0.2
Ø
Ø 44
5
41
6
46
7
51
8
56
Document Number: 32521
2
For technical questions, contact:
mcbprecisionpot@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
POHR36, POHR44, POTH44, POTH50, POTH76
www.vishay.com
Vishay MCB
DIMENSIONS
in millimeters
POTH44
7.6 min.
25°
25°
R
0
Ø 6.35
- 0.013
32
m
ax
.
0
Ø 39.674
- 0.013
1.6 ± 0.1
1.6 ± 0.1
25 ± 0.5
1.9
+ 0.2
- 0.1
L ± 0.5
Slot
width 0.8 ± 0.2 depth 1 ± 0.4
Ø 44.45 max.
Ø 41.4 max.
Ø 44.45
- 0
0.2
Approximate electrical zero
Number of cups:
L:
POTH50
1
26.5
2
42
3
57.5
4
73
m
ax
.
.5
24° ±
30’
24° ±
30’
R
0.5
- 0
0.3
7.5 min.
32
Ø 6.35
- 0
0.013
Ø 47.62
- 0
0.025
1.52 ± 0.1
1.52 ± 0.1
1.52 ± 0.1
L ± 0.5
25 ± 0.5
Ø 47.62 max.
Number of cups:
L:
1
25
2
40
3
55
4
70
5
85
Revision: 20-Oct-15
Document Number: 32521
3
For technical questions, contact:
mcbprecisionpot@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
Ø 50.8 ± 0.1
Ø 50.9 max.
POHR36, POHR44, POTH44, POTH50, POTH76
www.vishay.com
Vishay MCB
DIMENSIONS
in millimeters
POTH76
3.2 ± 0.1
ax
.
15° ± 30’
15° ± 30’
R
1.8 ± 0.1
1.4 ± 0.1
5.3 min.
45
m
Ø 6.35
- 0
0.013
Ø 76.25 max.
0.5 max.
2.3
- 0
0.05
3 x M4 Ø holes at 120° on 44.45 Ø
2.4
- 0
0.05
L ± 0.5
25 ± 0.5
Number of cups:
L:
1
27.5
2
43
3
58.5
4
74
0
Ø 73.02
- 0.025
Ø 73.1 max.
Ø
Ø 52.4 ± 0.1
5
89.5
ELECTRICAL DIAGRAM
POWER RATING CHART
W
A
Yellow
C
Green
4
3
2.5
2
POTH76
POTH50
POHR44, POTH44
POHR36
Red
B
Clockwise direction viewed from control shaft side
(°C)
0
70
125
OPTIONS
(on request)
•
•
•
•
•
•
•
Other ohmic values
Other tolerances on R
n
(see “Electrical Specifications” table)
Other linearities (see “Electrical Specifications” table)
Other theoretical electrical travel
Connectors (center tap)
Wire outputs (only on POHR44 and POTH44)
Through shaft
Revision: 20-Oct-15
Document Number: 32521
4
For technical questions, contact:
mcbprecisionpot@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
Ø76.2 ± 0.05
0
19.05
- 0.013
Legal Disclaimer Notice
www.vishay.com
Vishay
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. 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.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000
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