RT25
www.vishay.com
Vishay Sfernice
Wirewound Rheostat / Potentiometer
FEATURES
• 25 W at 25 °C
• CCTU 05-03B (PA1)
• Vitreous - RT style
• 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
RT25-PA1
38
25
4
-0
Ø 6 - 0.05
23.5
23.5
M10 x 0.75
PANEL CUT OUT DETAILS
Ø 4.5
23
12.5 ± 0.5
Ø 2.2
9±1
12
60°
28
22 ± 2
AS
Ø 10.5
MOUNTING SIDE
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
RT25
RESISTANCE
RANGE
1 to 4.7K
TOLERANCE
±%
10
RATED POWER
P
25 °C
W
25
VARIATION LAW
STANDARD
(1)
Linear
LIMITING
ELEMENT VOLTAGE
V
300
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°
1 Ncm to 10 Ncm
50 Ncm
80 g
Revision: 24-Aug-16
Document Number: 50026
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
RT25
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
13
2 tightening screws
Vishay Sfernice
PARTICULAR CHARACTERISTICS
NOMINAL
RESISTANCE
1
1.5
2.2
3.3
4.7
MAX. SERVICE
VOLTAGE
V
5
6.12
7.42
9.08
10.8
13
15.8
19.4
23.5
28.7
34.3
41.2
50
61.2
74.2
90.8
108
130
158
194
235
287
343
MAX. CURRENT
THROUGH WIPER
mA
5000
4080
3370
2750
2300
1920
1580
1290
1070
870
730
605
500
408
337
275
230
192
158
129
107
87
73
spanner n° 14
max. panel thickness 6.5
6.8
10
15
22
ADAPTATION BOARD
This enables 2 point mounting instead of bush mounting.
The adaptation board is supplied as an option with 2
mounting screws. Consequently, the available spindle
length is reduced by 9.5 mm.
33
47
68
100
150
SPINDLES
Ø
mm
DISTANCE TO
MOUNTING
PLATE mm
22
6
25
With
50
6
22
Without
Without
AMF
AL
AS
SCREW
DRIVER
SLOT
With
Without
CODE
ASF
AM
220
330
470
680
1K
1.5K
2.2K
3.3K
4.7K
Note
• For any special requirement on request: spindle flats, etc. Please
supply detailed drawing.
COMMAND SHAFT 29JF (OPTION)
18
DIAL CG57 (OPTION)
4 holes Ø 3.5
5
6
7
8
1
0
47
56
10
9
47 56
Ø 43
Ø7
21
Ø 12
2
4
3
MARKING
Vishay Sfernice trademark, series, style, power rating in watts, ohmic value (in
or k), tolerance (in %), maximum current in
A, manufacturing date.
Revision: 24-Aug-16
Document Number: 50026
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
RT25
www.vishay.com
Vishay Sfernice
ORDERING INFORMATION
RT
MODEL
025
STYLE
ASF
SPINDLE
2201
OHMIC VALUE
K
TOLERANCE
B
PACKAGING
XXX
SPECIAL DESIGN
GLOBAL PART NUMBER INFORMATION
R
T
0
2
5
A
S
1
0
R
0
K
B
GLOBAL
SIZE
MODEL
RT
025
LOCKING
DEVICE (OPT.)
D
WINDING
(OPT.)
BXXX
or
BXXXX
COMMAND
SHAFT
OHMIC VALUE
TOLERANCE PACKAGING
J
=5%
K
= 10 %
B
= bulk
BO10
No standard
packaging:
N
= bulk,
qty. open
SPECIAL
As applicable
Ex
= DXxx
The three first digits are
AS
= standard
significant figures and the
(Diam: 6 mm)
last digit specifies the
AM
number of zeros to follow.
AMF
R designates decimal point.
AL
As applicable
ASF
xxx(x) =
2002
= 20 k
internal
4700
= 470
number
10R0
= 10
0R01
= 0.01
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: 50026
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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