RT55
www.vishay.com
Vishay Sfernice
Wirewound Rheostat / Potentiometer
FEATURES
• 55 W at 25 °C
• CCTU 05-03B (PA3)
• Material categorization: for definitions of
compliance please see
www.vishay.com/doc?99912
DIMENSIONS
in millimeters
ADAPTATION BOARD
PANEL CUT OUT DETAILS
Ø 10.5
2 holes Ø 5
7.6
23.5
23.5
RT55-PA3
60 ± 2.5
36
4
PANEL CUT OUT DETAILS
-0
Ø 6 - 0.05
Ø 4.5
M10 x 0.75
38
15
Screw M3
60°
39
Mounting side
9±1
25 ± 2
AS
12.5 ± 0.5
Ø 10.5
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
RT55
RESISTANCE
RANGE
1 to 10K
TOLERANCE
±%
10
RATED POWER
P
25 °C
W
55
VARIATION LAW
STANDARD
(1)
Linear
LIMITING
ELEMENT VOLTAGE
V
500 (linear law)
DIELECTRIC
STRENGTH
V
RMS
1000
INSULATION
RESISTANCE
10
3
M (500 V
CC
)
Note
(1)
On request: sectorial winding
CLIMATIC SPECIFICATIONS
Temperature range
Climatic category
-55 °C; +320 °C
CCTU 454
CEI 55 / 200 / 56
MECHANICAL SPECIFICATIONS
Mechanical protection
Mechanical travel
Operating torque
End stop torque
Unit weight
Vitreous
300° ± 5°
2 Ncm to 15 Ncm
100 Ncm
175 g
Revision: 24-Aug-16
Document Number: 50027
1
For technical questions, contact:
sferfixedresistors@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
RT55
www.vishay.com
LOCKING DEVICE
This is supplied as an option. The available spindle length is
according to the panel thickness.
Order reference: DBA6
1 ± 0.2
Vishay Sfernice
PARTICULAR CHARACTERISTICS
NOMINAL
RESISTANCE
1
1.5
MAX. SERVICE
VOLTAGE
V
7.41
9.08
11
4.7
16.1
19.3
23.5
28.7
34.8
42.6
50.8
61.2
74.1
90.8
110
135
161
193
235
287
348
426
500
500
500
MAX. CURRENT
THROUGH WIPER
A
7.41
6.05
5
6.8
3.42
2.84
2.35
1.91
1.58
1.29
1.08
0.9
0.74
0.6
0.5
0.4
0.34
0.28
0.23
0.19
0.16
0.13
0.11
0.09
0.05
2 tightening screws
2.2
3.3
4.7
13
6.8
6.5
spanner n
o
14
max. panel thickness
10
15
22
33
ADAPTATION BOARD
This enables 2 point mounting instead of bush mounting.
The adaptation board is supplied as an option with
2 mounting screws.
47
68
100
150
SPINDLES
Ø
mm
DISTANCE TO MOUNTING SCREW DRIVER
PLATE mm
SLOT
Without
22
With
6
25
With
50
Without
ASF
AL
Without
ADF
AS
CODE
AD
220
330
470
680
1K
1.5K
2.2K
3.3K
4.7K
5.6K
10K
Note
• For any special requirement on request: spindle flats, etc. Please
supply detailed drawing.
COMMAND KNOB 41JF (OPTION)
21
DIAL CG78 (OPTION)
4 holes Ø 3.5
2 holes Ø 4.5
5
6
7
8
1
0
47
65
78
10
9
65
78
Ø 56
Ø6
Ø 12
3
2
4
18
MARKING
Vishay Sfernice trademark, series, style, ohmic value (in
or k), tolerance (in %), maximum current in A, manufacturing date.
Revision: 24-Aug-16
Document Number: 50027
2
For technical questions, contact:
sferfixedresistors@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
RT55
www.vishay.com
Vishay Sfernice
ORDERING INFORMATION
RT
MODEL
055
STYLE
AS
SPINDLE
4701
OHMIC VALUE
K
TOLERANCE
B
PACKAGING
XXX
SPECIAL DESIGN
GLOBAL PART NUMBER INFORMATION
R
T
0
5
5
A
S
2
2
R
0
K
B
GLOBAL
SIZE
MODEL
RT
055
LOCKING
DEVICE (OPT.)
D
WINDING
(OPT.)
BXXX
or
BXXXX
COMMAND
SHAFT
OHMIC VALUE
The three first digits are
significant figures and
the last digit specifies
the number of zeros to
follow. R designates
decimal point.
2002
= 20 k
4700
= 470
22R0
= 22
0R01
= 0.01
TOLERANCE PACKAGING
J
=5%
K
= 10 %
B
= bulk
BO1
SPECIAL
As applicable
Ex
= DXxx
AS
= standard
(Diam: 6 mm)
AL
ASF
AD
As applicable
ADF
xxx(x) =
internal
number
RELATED DOCUMENTS
APPLICATION NOTES
Potentiometers and Trimmers
Guidelines for Vishay Sfernice Resistive and Inductive Components
www.vishay.com/doc?51001
www.vishay.com/doc?52029
Revision: 24-Aug-16
Document Number: 50027
3
For technical questions, contact:
sferfixedresistors@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
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.
© 2017 VISHAY INTERTECHNOLOGY, INC. ALL RIGHTS RESERVED
Revision: 08-Feb-17
1
Document Number: 91000
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