RT25
Vishay Sfernice
Wirewound Rheostat/Potentiometer
FEATURES
•
25 W at 25 °C
•
CCTU 05-03B (PA1)
•
Vitreous - RT style
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
12.5 ± 0.5
23
Ø 2.2
9±1
12
60°
28
22 ± 2
AS
Ø 10.5
MOUNTING SIDE
MECHANICAL SPECIFICATIONS
Mechanical Protection
Mechanical Travel
Operating Torque
End Stop Torque
Unit Weight
Vitreous
300° ± 5°
1 to 10 Ncm
50 Ncm
80 g
LOCKING DEVICE
This is supplied as an option.
The available spindle length is according to the panel
thickness.
Order reference: DBA6
1 ± 0.2
ENVIRONMENTAL SPECIFICATIONS
Temperature Range
Climatic Category
- 55 °C + 320 °C
CCTU 454
CEI 55/200/56
2 tightening screws
13
spanner n° 14
max. panel thickness 6.5
ELECTRICAL SPECIFICATIONS
Ohmic Range
Tolerance Standard
Power Rating
Variation Law
Dielectric Strength
Insulation Resistance
Document Number: 50026
Revision: 24-Sep-08
Standard
On request
1
Ω
to 4.7 kΩ
± 10 %
25 W at 25 °C
linear
sectorial winding
1000 V
RMS
10
3
MΩ
(500 V
CC
)
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.
For technical questions, contact: sfer@vishay.com
www.vishay.com
83
RT25
Vishay Sfernice
Wirewound Rheostat/Potentiometer
PARTICULAR CHARACTERISTICS
NOMINAL
RESISTANCE
Ω
1
1.5
2.2
3.3
4.7
6.8
10
15
22
33
47
68
100
150
220
330
470
680
1K
1.5K
2.2K
3.3K
4.7K
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
SPINDLES
Ø
mm
DISTANCE TO MOUNTING
PLATE mm
22
6
25
50
6
22
SCREW DRIVER
SLOT
WITH
WITHOUT
WITH
WITHOUT
WITHOUT
CODE
ASF
AM
AMF
AL
AS
For any special requirement on request: spindle flats, etc.
Please supply detailed drawing.
COMMAND SHAFT 29JF (OPTION)
18
Ø 43
Ø7
21
DIAL CG57 (OPTION)
4 holes Ø 3.5
5
6
7
8
1
0
47
56
10
9
47 56
Ø 12
2
4
3
MARKING
SFERNICE trademark, series, style, power rating in watts, ohmic value (in
Ω
or kΩ), tolerance (in %), maximum current in A,
manufacturing date
ORDERING INFORMATION
VITREOUS
RT
25
L
SPINDLE VARIATION
LOCKING
LAW
DEVICE
Optional
SPECIAL
DESIGN
Method
N°
Optional
WINDING
ASF
SPINDLE
(Code)
for special
spindles
please
supply
detailed
drawing
e
LEAD (Pb)-FREE
2K2
10 %
B010
e
LEAD
(Pb)-FREE
SERIES STYLE
OHMIC TOLERANCE PACKAGING
VALUE
Optional
ACC
ACCESORIES
MODEL
BOUTON
CADIAN
TYPE
29JK
CG57
STYLE
SAP PART NUMBERING GUIDELINES
RT
MODEL
ACCRF
MODEL
025
STYLE
ASF
SPINDLE
BOUTON
TYPE
2201
OHMIC VALUE
K
TOLERANCE
29JF
STYLE
B
PACKAGING
XXX
SPECIAL DESIGN
www.vishay.com
84
For technical questions, contact: sfer@vishay.com
Document Number: 50026
Revision: 24-Sep-08
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
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 herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
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.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
www.vishay.com
1
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