RW Datasheet

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.
• 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
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.
DIMENSIONS in millimeters
WELDED STAINLESS STEEL 304 L BAND “B”
D
ØB
WELDED STAINLESS STEEL 304 L COLLARS “AN”
N
E
ØC
ØU
ØB
G
K J
F
H
A
ØC
WELDED STAINLESS STEEL 304 L COLLARS “CR”
N
ØB
M
L
ØC
A
P
Q
Q
WELDED STAINLESS STEEL 304L COLLARS “CS”
R
4.2
4.2
T
S
SERIES
CONNECTIONS
COLLAR COLLAR COLLAR BAND
A±2
ØB
MAX.
ØC
MIN.
D + 0.5
+0
E
F
MAX.
G
-
H
J
K
RW 
8 x 34
AN
-
-
-
34
11.5
4.1
-
-
-
RW 
10 x 50
AN
CR
-
B
50
13
5
8
11 ± 0.5
21
14 ± 0.5 31 ± 1.0
22 ± 0.5
18 ± 0.5
RW 
13 x 70
AN
CR
CS
B
70
16
5
10.5
14 ± 0.5
24.5
16 ± 0.5 34 ± 1.0
24 ± 0.5
20 ± 0.5
RW 
16 x 94
AN
-
-
B
94
19.5
9
12
17 ± 0.5
28
18 ± 0.5 38 ± 1.0
25 ± 0.5
21 ± 0.5
RW 
20 x 117
AN
-
-
B
117
23
9
14
21 ± 0.7
33
21 ± 0.7 42 ± 1.5
28 ± 0.7
24 ± 0.7
Revision: 05-Aug-13
28 ± 1.0 19.5 ± 0.5 16 ± 0.5
Document Number: 50016
1
For technical questions, contact: [email protected]
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
CONNECTIONS
COLLAR COLLAR COLLAR BAND
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
+0
P±1
Q ± 0.5 R ± 2
S±2
T
ØU
AN
-
-
-
5
1
27
-
-
-
-
-
3.2
AN
CR
-
B
6.35
1.5
40
19.5
19.5
72
62
12
4.2
AN
CR
CS
B
0.6
3.5
56
22.5
20.5
91
81
15
4.2
AN
-
-
B
0.6
4
78
-
-
-
-
-
4.2
AN
-
-
B
0.8
6
98
-
-
-
-
-
4.2
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
SIZE
RESISTANCE
RANGE

RATED POWER
P25 °C
W
TOLERANCE
±%
RW 8 x 34
RW 10 x 50
RW 13 x 70
RW 16 x 94
RW 20 x 117
0834
1050
1370
1694
20117
1 to 10K
1 to 27K
2.2 to 56K
2.2 to 56K
2.7 to 68K
10
17
28
44
72
5
5
5
5
5
MECHANICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS
Mechanical Protection
Resistive Element
Resistance Range
Enamel
Ni-Cr wire
B band
AN - CR - CS collars
10 g to 100 g
Connections
Average Unit Weight
1  to 68 k
(E12 peferred series value)
Power Rating
10 W to 80 W at 25 °C
Temperature Coefficient
75 ppm/°C (typical)
Dielectric Strength
1000 VRMS (AN collars)
ENVIRONMENTAL SPECIFICATIONS
Insulation Resistance
100 M (500 VDC)
AN collars
Temperature Range
Climatic Category
Shelf Life
0.1 % year (typical)
- 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 Pr 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 % Pr 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
REQUIREMENTS
TYPICAL VALUES AND DRIFTS
2 % or 0.05 
0.5 %
3 % or 0.05 
Insulation resistance > 100 M
2 % or 0.05 
Insulation resistance > 100 M
90'/30' cycle
1000 h at Pr 25 °C
0.5 %
0.5 %
2 % or 0.05 
0.5 %
1 % or 0.05 
1 % or 0.05 
0.25 %
0.25 %
1 % or 0.05 
0.5 %
5%
1000 h
5000 h
1.5 %
2.5 %
SPECIAL FEATURES
RW STYLE
Designation NF C 93-214
Maximum Power Rating at 25 °C
Ohmic Range (E12, E24 series)
Critical Resistance
Revision: 05-Aug-13
8 x 34
10 x 50
13 x 70
16 x 94
20 x 117
13 W
1  to10 k
6.9 k
20 W
1  to27 k
10 k
RB 13 x 70
32 W
2.2  to 56 k
13.2 k
50 W
2.2  to 56 k
16 k
RB 20 x 117
80 W
2.7  to 68 k
15.1 k
Document Number: 50016
2
For technical questions, contact: [email protected]
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
NON INDUCTIVE WINDING
For high frequencies, low self induction resistors are available with special windings. RWNI designation.
MODEL
AND STYLE
RWNI
8 x 34
RWNI
10 x 50
RWNI
13 x 70
RWNI
16 x 94
RWNI
20 x 117
Ohmic Range
4.7 
100 
4.7 
220 
4.7 
620 
10 
1.2 k
10 
2.2 k
TEMPERATURE RISE
75
50
VISHAY
SFERNICE
25
NF C 93-214
0
0
75
150
225
300
375
450
34
RW 8
x
100
400
300
200
100
0
525
RW
10 x
HOT SPOT TEMPERATURE IN °C
RATED POWER IN %
125
50
RW
13 x
70
RW
16 x
94
RW
20
x1
17
POWER RATING
10
100
1000
RATED POWER IN W
AMBIENT TEMPERATURE IN °C
MARKING
Vishay Sfernice trademark, model, style, NF style (if applicable) nominal resistance (in ), tolerance (in %), manufacturing date.
ORDERING INFORMATION
RW
20 × 117
NI
MODEL
STYLE
NON-INDUCTIVE
WINDING
Optional
SPECIAL
DESIGN
Optional
AN
68 
CONNECTIONS
OHMIC VALUE
Custom items are
subject to extra-charge
and min. order.
Please see price list.
±5%
B020
e
TOLERANCE PACKAGING
LEAD
(Pb)-FREE
GLOBAL PART NUMBER INFORMATION
R
W
GLOBAL
MODEL
RW
1
6
X
9
4
A
2
0
3
J
B
0
0
SIZE
LEADS
OPTION
OHMIC VALUE
TOLERANCE
PACKAGING
SPECIAL
8 x 34
10 x 50
13 x 70
16 x 94
20 x 117
A = AN
B=B
C = CS
D = CR
N = Non
inductive
winding
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 
J = 5.0 %
Box:
BA25
BA25NA
BO20
BO20NA
BO30
BO30NA
BO40
BO40NA
BO50
BO50NA
As applicable.
Example: BC1
Revision: 05-Aug-13
Document Number: 50016
3
For technical questions, contact: [email protected]
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
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www.vishay.com
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Revision: 02-Oct-12
1
Document Number: 91000