RW
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Revision: 04-Apr-2019 1Document Number: 50016
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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
Fixed Wirewound High Power Vitreous Resistors with Terminal
Collars or Bands
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.
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
• 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
SERIES CONNECTIONS A ± 2 Ø B
MAX.
Ø C
MIN.
D + 0.5
+ 0 EF
MAX. GH J K
COLLAR COLLAR COLLAR BAND
RW
8 x 34 AN - - - 34 11.5 4.1 - - - - 28 ± 1.0 19.5 ± 0.5 16 ± 0.5
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
WELDED STAINLESS STEEL 304 L BAND “B”
D
F
Ø B
A
Ø C
E
G
4.2
WELDED STAINLESS STEEL 304L COLLARS “CS”
WELDED STAINLESS STEEL 304 L COLLARS “AN”
N
Ø C
Ø U
Ø B
A
LM
KJ
H
N
Ø C
P
Q
R
Q
Ø B
S
4.2
T
WELDED STAINLESS STEEL 304 L COLLARS “CR”
RW
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Revision: 04-Apr-2019 2Document Number: 50016
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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
SERIES CONNECTIONS L + 0.5
+ 0 M ± 1.5 N ± 2 P ± 1 Q ± 0.5 R ± 2 S ± 2 T Ø U
COLLAR COLLAR COLLAR BAND
RW
8 x 34 AN- - -5127- --- - 3.2
RW
10 x 50 AN CR - B 6.35 1.5 40 19.5 19.5 72 62 12 4.2
RW
13 x 70 AN CR CS B 0.6 3.5 56 22.5 20.5 91 81 15 4.2
RW
16 x 94 AN - - B 0.6 4 78 - - - - - 4.2
RW
20 x 117 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 0834 1 to 10K 10 5
RW 10 x 50 1050 1 to 27K 17 5
RW 13 x 70 1370 2.2 to 56K 28 5
RW 16 x 94 1694 2.2 to 56K 44 5
RW 20 x 117 20117 2.7 to 68K 72 5
DIMENSIONS in millimeters
MECHANICAL SPECIFICATIONS
Mechanical Protection Enamel
Resistive Element Ni-Cr wire
Connections B band
AN - CR - CS collars
Average Unit Weight 10 g to 100 g
ENVIRONMENTAL SPECIFICATIONS
Temperature Range -55 °C, +450 °C
Climatic Category -55 °C / +200 °C / 56 days
TECHNICAL SPECIFICATIONS
Resistance Range 1 to 68 k
(E12 preferred series value)
Power Rating 10 W to 80 W at 25 °C
Temperature Coefficient 75 ppm/°C (typical)
Dielectric Strength 1000 VRMS (AN collars)
Insulation Resistance 100 M (500 VDC)
AN collars
Shelf Life 0.1 % year (typical)
PERFORMANCE
TESTS CONDITIONS REQUIREMENTS TYPICAL VALUES AND DRIFTS
Short Time Overload
10 Pr during 5 s
voltage limited at < 5000 V
current limited at 5 A
2 % or 0.05 0.5 %
Climatic Sequence -55 °C, +200 °C
5 cycles
3 % or 0.05
Insulation resistance > 100 M0.5 %
Humidity
(Steady State)
56 days
95 % relative humidity
2 % or 0.05
Insulation resistance > 100 M0.5 %
Thermal Shock Load at 100 % Pr followed by cold
temp. exposure at -55 °C 2 % or 0.05 0.5 %
Shock Severity 50, 9 shocks/each side 1 % or 0.05 0.25 %
Vibration Severity 55B 1 % or 0.05 0.25 %
Terminal Strength Collar AN traction 40 N
band B torque 60 Ncm 1 % or 0.05 0.5 %
Load Life 90' / 30' cycle
1000 h at Pr 25 °C 5 % 1000 h 1.5 %
5000 h 2.5 %
SPECIAL FEATURES
RW STYLE 8 x 34 10 x 50 13 x 70 16 x 94 20 x 117
Designation NF C 93-214 - - RB 13 x 70 - RB 20 x 117
Maximum Power Rating at 25 °C 13 W 20 W 32 W 50 W 80 W
Ohmic Range (E12, E24 series) 1 to10 k1 to27 k2.2 to 56 k2.2 to 56 k2.7 to 68 k
Limiting Element Voltage 300 V 450 V 650 V 900 V 1100 V
Critical Resistance 6.9 k10 k13.2 k16 k15.1 k
RW
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Revision: 04-Apr-2019 3Document Number: 50016
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
NON INDUCTIVE WINDING
For high frequencies, low self induction resistors are available with special windings. RWNI designation.
POWER RATING TEMPERATURE RISE
MARKING
Vishay Sfernice trademark, model, style, NF style (if applicable) nominal resistance (in ), tolerance (in %), manufacturing date.
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
AMBIENT TEMPERATURE IN °C
100
125
0
0
75 150 225 300 375 450 525
NF C 93-214
RATED POWER IN %
VISHAY
SFERNICE
75
50
25
RATED POWER IN W
HOT SPOT TEMPERATURE IN °C
400
300
200
100
0 1000
RW 8 x 34
RW 10 x 50
RW 13 x 70
RW 16 x 94
RW 20 x 117
10 100
ORDERING INFORMATION
RW 20 × 117 NI AN 68 ± 5 % B020 e
MODEL STYLE NON-INDUCTIVE
WINDING
Optional
SPECIAL
DESIGN
Optional
CONNECTIONS OHMIC VALUE
Custom items are
subject to extra-charge
and min. order.
Please see price list.
TOLERANCE PACKAGING LEAD
(Pb)-FREE
GLOBAL PART NUMBER INFORMATION
GLOBAL
MODEL SIZE LEADS OPTION OHMIC VALUE TOLERANCE PACKAGING SPECIAL
RW 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:
BBOxxNA
(variable qty.)
= B00
BAxxNA
(variable qty.)
= S00
BA25 = S06
BO20 = B15
B040 = B23
BO50 = B25
As applicable.
Example: BC1
RELATED DOCUMENTS
APPLICATION NOTES
Potentiometers and Trimmers www.vishay.com/doc?51001
Guidelines for Vishay Sfernice Resistive and Inductive Components www.vishay.com/doc?52029
X9 A 2 3 B 0W 1R 6 4 0J0
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 01-Jan-2019 1Document Number: 91000
Disclaimer
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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