RW
www.vishay.com
Vishay Sfernice
Fixed Wirewound High Power Vitreous Resistors with Terminal
Collars or Bands
FEATURES
• 10 W to 80 W at 25 °C
• NF C 93-214
• RB 13 x 70 RB 20 x 117
• High power up to 80 W at 25 °C
• High long term stability drift < 2.5 % after 5000 h
The RW wirewound power resistors are extremely well
suited to professional applications, where high power and
excellent endurance are required. They meet all
requirements of NF C 93-214 specifications and five sizes
cover the power range from 10 W to 80 W. Non inductive
types are available, by using the special RWNI winding. For
higher power or extremely severe conditions of use, see the
RWST series.
NF F 16101, 10/1988 and 16102, 04/1992: Not applicable
(our parts are made of metallic and refractory materials).
NF C 93-214. Performances according to NF C 93-214.
• Great mechanical strength
• Fire proof
• Environmental performance
• Thermal shock strength 0.5 % (100 % h at -25 °C)
• Material categorization: for definitions of compliance
please see
www.vishay.com/doc?99912
DIMENSIONS
in millimeters
WELDED STAINLESS STEEL 304 L BAND “B”
D
ØC
ØU
G
F
A
ØC
N
ØB
ØC
P
M
L
A
ØB
K J
H
ØB
E
WELDED STAINLESS STEEL 304 L COLLARS “AN”
N
WELDED STAINLESS STEEL 304 L COLLARS “CR”
Q
R
4.2
Q
WELDED STAINLESS STEEL 304L COLLARS “CS”
4.2
T
S
SERIES
RW
8 x 34
RW
10 x 50
RW
13 x 70
RW
16 x 94
RW
20 x 117
CONNECTIONS
COLLAR COLLAR COLLAR BAND
AN
AN
AN
AN
AN
-
CR
CR
-
-
-
-
CS
-
-
-
B
B
B
B
A±2
34
50
70
94
117
ØB
MAX.
11.5
13
16
19.5
23
ØC
MIN.
4.1
5
5
9
9
D + 0.5
+0
-
8
10.5
12
14
E
-
11 ± 0.5
14 ± 0.5
17 ± 0.5
21 ± 0.7
F
MAX.
-
21
24.5
28
33
G
-
H
J
K
28 ± 1.0 19.5 ± 0.5 16 ± 0.5
22 ± 0.5
24 ± 0.5
25 ± 0.5
28 ± 0.7
18 ± 0.5
20 ± 0.5
21 ± 0.5
24 ± 0.7
14 ± 0.5 31 ± 1.0
16 ± 0.5 34 ± 1.0
18 ± 0.5 38 ± 1.0
21 ± 0.7 42 ± 1.5
Revision: 27-Apr-16
Document Number: 50016
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
RW
www.vishay.com
Vishay Sfernice
DIMENSIONS
in millimeters
SERIES
RW
8 x 34
RW
10 x 50
RW
13 x 70
RW
16 x 94
RW
20 x 117
L + 0.5
M ± 1.5 N ± 2
COLLAR COLLAR COLLAR BAND + 0
AN
AN
AN
AN
AN
-
CR
CR
-
-
-
-
CS
-
-
-
B
B
B
B
5
6.35
0.6
0.6
0.8
1
1.5
3.5
4
6
27
40
56
78
98
CONNECTIONS
P±1
-
19.5
22.5
-
-
Q ± 0.5 R ± 2
-
19.5
20.5
-
-
-
72
91
-
-
S±2
-
62
81
-
-
T
-
12
15
-
-
ØU
3.2
4.2
4.2
4.2
4.2
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
RW 8 x 34
RW 10 x 50
RW 13 x 70
RW 16 x 94
RW 20 x 117
SIZE
0834
1050
1370
1694
20117
RESISTANCE
RANGE
1 to 10K
1 to 27K
2.2 to 56K
2.2 to 56K
2.7 to 68K
RATED POWER
P
25 °C
W
10
17
28
44
72
TOLERANCE
±%
5
5
5
5
5
MECHANICAL SPECIFICATIONS
Mechanical Protection
Resistive Element
Connections
Average Unit Weight
Enamel
Ni-Cr wire
B band
AN - CR - CS collars
10 g to 100 g
TECHNICAL SPECIFICATIONS
Resistance Range
Power Rating
Temperature Coefficient
Dielectric Strength
Insulation Resistance
Shelf Life
1
to 68 k
(E12 preferred series value)
10 W to 80 W at 25 °C
75 ppm/°C (typical)
1000 V
RMS
(AN collars)
100 M (500 V
DC
)
AN collars
0.1 % year (typical)
ENVIRONMENTAL SPECIFICATIONS
Temperature Range
Climatic Category
-55 °C, +450 °C
-55 °C / +200 °C / 56 days
PERFORMANCE
TESTS
Short Time Overload
Climatic Sequence
Humidity
(Steady State)
Thermal Shock
Shock
Vibration
Terminal Strength
Load Life
CONDITIONS
10
P
r
during 5 s
voltage limited at < 5000 V
current limited at 5 A
-55 °C, +200 °C
5 cycles
56 days
95 % relative humidity
Load at 100 %
P
r
followed by cold
temp. exposure at -55 °C
Severity 50, 9 shocks/each side
Severity 55B
Collar AN traction 40 N
band B torque 60 Ncm
90' / 30' cycle
1000 h at
P
r
25 °C
REQUIREMENTS
2 % or 0.05
3 % or 0.05
Insulation resistance > 100 M
2 % or 0.05
Insulation resistance > 100 M
2 % or 0.05
1 % or 0.05
1 % or 0.05
1 % or 0.05
5%
1000 h
5000 h
TYPICAL VALUES AND DRIFTS
0.5 %
0.5 %
0.5 %
0.5 %
0.25 %
0.25 %
0.5 %
1.5 %
2.5 %
SPECIAL FEATURES
RW STYLE
Designation NF C 93-214
Maximum Power Rating at 25 °C
Ohmic Range (E12, E24 series)
Limiting Element Voltage
Critical Resistance
Revision: 27-Apr-16
8 x 34
-
13 W
1
to10 k
300 V
6.9 k
10 x 50
-
20 W
1
to27 k
450 V
10 k
13 x 70
RB 13 x 70
32 W
2.2
to 56 k
650 V
13.2 k
16 x 94
-
50 W
2.2
to 56 k
900 V
16 k
20 x 117
RB 20 x 117
80 W
2.7
to 68 k
1100 V
15.1 k
Document Number: 50016
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
RW
www.vishay.com
NON INDUCTIVE WINDING
For high frequencies, low self induction resistors are available with special windings. RWNI designation.
MODEL
AND STYLE
Ohmic Range
RWNI
8 x 34
4.7
100
RWNI
10 x 50
4.7
220
RWNI
13 x 70
4.7
620
RWNI
16 x 94
10
1.2 k
RWNI
20 x 117
10
2.2 k
Vishay Sfernice
POWER RATING
125
TEMPERATURE RISE
HOT SPOT TEMPERATURE IN °C
400
RW
10 x
50
RW
13 x
70
RW
16 x
94
RW
20
x1
17
RW 8
x
34
RATED POWER IN %
100
75
300
50
200
VISHAY
SFERNICE
25
NF C 93-214
0
0
75
150
225
300
375
450
525
100
0
10
100
1000
AMBIENT TEMPERATURE IN °C
RATED POWER IN W
MARKING
Vishay Sfernice trademark, model, style, NF style (if applicable) nominal resistance (in
),
tolerance (in %), manufacturing date.
ORDERING INFORMATION
RW
MODEL
20 × 117
STYLE
NI
NON-INDUCTIVE
WINDING
Optional
SPECIAL
DESIGN
Optional
AN
CONNECTIONS
68
OHMIC VALUE
Custom items are
subject to extra-charge
and min. order.
Please see price list.
±5%
B020
e
LEAD
(Pb)-FREE
TOLERANCE PACKAGING
GLOBAL PART NUMBER INFORMATION
R
W
1
6
X
9
4
A
2
0
3
J
B
0
0
GLOBAL
MODEL
RW
SIZE
8 x 34
10 x 50
13 x 70
16 x 94
20 x 117
LEADS
A
= AN
B
=B
C
= CS
D
= CR
OPTION
N
= Non
inductive
winding
OHMIC VALUE
The first two digits are
significant figures and the last
digit specifies the number of
zeros to follow. R designates
decimal point.
203
= 20 k
471
= 470
48R
= 48.7
R01
= 0.01
TOLERANCE
J
= 5.0 %
PACKAGING
Box:
BA25
BA25NA
BO20
BO20NA
BO30
BO30NA
BO40
BO40NA
BO50
BO50NA
SPECIAL
As applicable.
Example:
BC1
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: 27-Apr-16
Document Number: 50016
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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