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Revision: 18-Dec-08 1Document Number: 21005
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Vitreous Wirewound Resistors
FEATURES
All welded construction
Ceramic core
Models acc. MIL-R-26 available
Complete vitreous coating for perfect humidity
protection
Available in adjustable = “E” or non inductive design = “Ni”
TCR 100 ppm/K to 180 ppm/K - WM 110 (Class 3)
Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
POWER RATING
P40 °C
W
LIMITING
VOLTAGE
V
RESISTANCE RANGE
E12 = ± 10 % TOL., E24 = ± 5 % TOL.
DIN 41432
TOLERANCE
± %
RW 10 x 44 18
400
1 to 36K 10
7.5 to 36K 5
RW 10 x 44 E 11 1.0 to 1.6K 10
6.8 to 1.6K 5
RW 10 x 44 Ni 11 6.2 to 2.4K 10, 5
RW 12 x 25 11 120 0.39 to 13K 10
33 to 13K 5
RW 12 x 38 15
350
1.0 to 33K 10
5.6 to 33K 5
RW 12 x 38 E 14 4.3 to 1.5K 10
5.6 to 1.5K 5
RW 12 x 38 Ni 14 5.6 to 2.2K 10, 5
RW 12 x 51 25
600
1.0 to 56K 10
5.6 to 56K 5
RW 12 x 51 E 17 1.0 to 2.4K 10
6.8 to 2.4K 5
RW 12 x 51 Ni 17 9.1 to 3.6K 10, 5
RW 12 x 76 45
1000
2.0 to 91K 10
8.2 to 91K 5
RW 12 x 76 E 27 2.0 to 4.3K 10
13 to 4.3K 5
RW 12 x 76 Ni 27 16 to 6.2K 10, 5
RW 20 x 76 70
1000
1.0 to 75K 1
12 to 75K 5
RW 20 x 76 E 42 1.0 to 6.8K 10
20 to 6.8K 5
RW 20 x 76 Ni 42 1000 24 to 10K 10, 5
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Notes
(1) Model according to MIL-R-26
For available “Mounting Accessories for Resistors”, please see: www.vishay.com/ppg?21005
RW 20 x 102 90
1400
3 to 110K 10
18 to 110K 5
RW 20 x 102 E 55 3 to 10K 10
30 to 10K 5
RW 20 x 102 Ni 55 36 to 15K 10, 5
RW 30 x 102 130
1600
2.7 to 160K 10
24 to 160K 5
RW 30 x 102 E 80 2.7 to 15K 10
43 to 15K 5
RW 30 x 152 220
2500
4.7 to 200K 10
33 to 200K 5
RW 30 x 152 E 130 4.7 to 24K 10
75 to 24 K 5
RW 30 x 203 300
3600
6.8 to 270K 10
47 to 270K 5
RW 30 x 203 E 180 6.8 to 36K 10
100 to 36K 5
RW 30 x 267 400
5000
8.2 to 390K 10
75 to 390K 5
RW 30 x 267 E 240 8.2 to 47K 10
150 to 47K 5
RW 30 x 305 480
6000
10 to 300K 10
75 to 300K 5
RW 30 x 305 E 290 10 to 56K 10
160 to 56K 5
RW 29 (1) 11 400 7.5 to 3.3K 5
RW 30 (1) 11 120 33 to 1.1K 5
RW 31 (1) 14 350 5.6 to 3K 5
RW 32 (1) 17 600 5.6 to 4.7K 5
RW 33 (1) 26 1000 8.2 to 8.2K 5
RW 35 (1) 55 1400 18 to 20K 5
RW 36 (1) 78 1600 24 to 30K 5
RW 37 (1) 113 2500 33 to 47K 5
RW 38 (1) 159 3600 47 to 68 K 5
RW 47 (1) 210 5000 75 to 91K 5
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
POWER RATING
P40 °C
W
LIMITING
VOLTAGE
V
RESISTANCE RANGE
E12 = ± 10 % TOL., E24 = ± 5 % TOL.
DIN 41432
TOLERANCE
± %
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Notes
(1) See “Part Number and Product Description”
(2) See “Packaging Table”
Note
(3) See “Standard Electrical Specifications”
PART NUMBER AND PRODUCT DESCRIPTION
Part Number: RW0104411009JLX000
MODEL SPECIAL
CHARACTER VALUE TOLERANCE
CODE
PACKAGING
CODE SPECIAL
RW01044 = RW 10/44
RW01225 = RW 12/25
RW01238 = RW 12/38
RW01251 = RW 12/51
RW01276 = RW 12/76
RW02076 = RW 20/76
RW20102 = RW 20/102
RW30102 = RW 30/102
RW30152 = RW 30/152
RW30203 = RW 30/203
RW30267 = RW 30/267
RW30305 = RW 30/305
RW00029 = RW 29
RW00030 = RW 30
RW00031 = RW 31
RW00032 = RW 32
RW00033 = RW 33
RW00035 = RW 35
RW00036 = RW 36
RW00037 = RW 37
RW00038 = RW 38
0RW0047 = RW 47
0 = Neutral
1 = E
2 = NI
7 = FST
C = E FST
H = Ni FST
Z = Value
overflow (BV)
(Note: Ni is
also known as
SWI)
3 digit value
1 digit multiplier
MULTIPLIER
7 = *10-3
8 = *10-2
9 = *10-1
0 = *100
1 = *101
2 = *102
3 = *103
4 = *104
J = ± 5.0 %
K = ± 10.0 %
(see
Packaging
table)
The 5 digit BV number will
be encoded using a
36 character code.
This code contains numbers
0 to 9 and letters A to Z
(36 characters total)
and allows to encode
at least 46 655 five
digit BV numbers.
000 = Standard
Product Description: RW 10/44 E 10R 5 % LX
RW 10/44 E 10R 5 % LX
MODEL (1) SPECIAL
CHARACTER (1) VALUE (1) TOLERANCE CODE (1) PACKAGING
DESCRIPTION (2)
PACKAGING TABLE
MODEL
LOOSE SPECIAL
PACKAGING
CODE
PACKAGING
DESCRIPTION
PACKAGING
CODE
PACKAGING
DESCRIPTION
All models (3) LX LX
Loose pack, without quantity ZX
ZX
Special pack (with BV #),
without quantity
1044 1001W0 JLX 09R 00
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Revision: 18-Dec-08 4Document Number: 21005
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Notes
(1) Numbers in (parenthesis) represent the Dimension Dmax. for resistor produced with corrugated ribbon
(2) Model according to MIL-R-26
DIMENSIONS in millimeters [inches]
MODEL
RW 10/44
RW 10/44 E
RW 10/44 NI
RW 29 (2)
RW 12/25
RW 30 (2)
RW 12/38
RW 12/38 E
RW 12/38 NI
RW 31 (2)
RW 12/51
RW 12/51 E
RW 12/51 NI
RW 32 (2)
RW 12/76
RW 12/76 E
RW 12/76 NI
RW 33 (2)
RW 20/76
RW 20/76 E
RW 20/76 NI
MM Dmax. (1) 12.7 (15.7)
[0.5 (0.618)]
15.1 (18.1)
[0.595 (0.713)]
15.1 (18.1)
[0.595 (0.713)]
15.1 (18.1)
[0.595 (0.713)]
15.1 (18.1)
[0.595 (0.713)]
23 (26)
[0.906 (1.024)]
L ± 1.6 mm 44.4 [1.748] 25.4 [1.000] 38.1 [1.500] 50.8 [2.000] 76.2 [3.000] 76.2 [3.000]
a33.4 [1.315] 14.4 [0.570] 27.1 [1.070] 39.8 [1.570] 65.2 [2.570] 63.2 [2.490]
a131.4 [1.236] - 25.1 [0.990] 37.8 [1.490] 63.2 [2.490] 63.2 [2.490]
b6 [0.236] 6 [0.240] 6 [0.240] 6 [0.240] 6 [0.240] 8 [0.310]
b15 [0.197] - 5 [0.200] 5 [0.200] 5 [0.200] 5 [0.200]
c16.5 [0.650] 17.5 [0.690] 17.5 [0.690] 17.5 [0.690] 17.5 [0.690] 22 [0.870]
c118.5 [0.728] - 19 [0.750] 19 [0.750] 19 [0.750] 23 [0.910]
d4.5 [0.177] 5.5 [0.220] 5.5 [0.220] 5.5 [0.220] 5.5 [0.220] 12 [0.470]
e3.2 [0.126] 3.2 [0.130] 3.2 [0.130] 3.2 [0.130] 3.2 [0.130] 4.2 [0.170]
e12.8 [0.110] - 3.2 [0.130] 3.2 [0.130] 3.2 [0.130] 3.2 [0.130]
s0.6 [0.024] 0.6 [0.020] 0.6 [0.020] 0.6 [0.020] 0.6 [0.020] 0.8 [0.030]
Weight (g) 10 10 10 15 15 30
MODEL
RW 20/102
RW 20/102 E
RW 20/102 NI
RW 35 (2)
RW 30/102
RW 30/102 E
RW 36 (2)
RW 30/152
RW 30/152 E
RW 37 (2)
RW 30/203
RW 30/203
RW 38 (2)
RW 30/267
RW 30/267 E
RW 47 (2)
RW 30/305
RW 30/305 E
MM Dmax. (1) 23 (26)
[0.906 (1.024)]
33.3 (36.3)
[1.310 (1.430)]
33.3 (36.3)
[1.310 (1.430)]
33.3 (36.3)
[1.310 (1.430)]
33.3 (36.3)
[1.310 (1.430)]
33.3 (36.3)
[1.310 (1.430)]
L ± 1.6 mm 101.6 [4.000] 101.6 [4.000] 152.4 [6.000] 203.2 [8.000] 266.7 [10.50] 304.8 [12.00]
a88.6 [3.490] 88.6 [3.490] 139.4 [5.490] 190.2 [7.490] 253.7 [9.990] 291.8 [11.49]
a188.6 [3.490] 88.6 [3.490] 139.4 [5.490] 190.2 [7.490] 253.7 [9.990] 291.8 [11.49]
b8 [0.310] 8 [0.310] 8 [0.310] 8 [0.310] 8 [0.310] 8 [0.310]
b15 [0.200] 8 [0.310] 8 [0.310] 8 [0.310] 8 [0.310] 8 [0.310]
c22 [0.870] 31 [1.220] 31 [1.220] 31 [1.220] 31 [1.220] 31 [1.220]
c123 [0.910] 27 [1.060] 27 [1.060] 27 [1.060] 27 [1.060] 27 [1.060]
d12 [0.470] 18.5 [0.730] 18.5 [0.730] 18.5 [0.730] 18.5 [0.730] 18.5 [0.730]
e4.2 [0.170] 4.2 [0.170] 4.2 [0.170] 4.2 [0.170] 4.2 [0.170] 4.2 [0.170]
e13.2 [0.130] 4.2 [0.170] 4.2 [0.170] 4.2 [0.170] 4.2 [0.170] 4.2 [0.170]
s0.8 [0.030] 0.8 [0.030] 0.8 [0.030] 0.8 [0.030] 0.8 [0.030] 0.8 [0.030]
Weight (g) 62 136 200 260 330 430
2.5
[0.098]
e
a
b
L
d
c
s
D
max.
b
1
e
1
Adjustable lug with
contact stud
2.5
[0.098]
c
1
1.65 + 0.1
[0.065 + 0.004]
6.3 + 0.1
[0.248 + 0.004]
0.8 [0.030]
thickness
4 + 0.5
[0.157 + 0.020]
8 ± 0.1
[0.310 + 0.004]
a
1
FST A 6.3 mm/DIN 46244
(at end terminals only)
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120
100
80
60
40
20
0
- 55 50 150 250 350
AMBIENT TEMPERATURE IN °C
% NI REWEOP DETAR
Derating 40
0 5 10 15 20 25
RW 10/44
500
400
300
200
100
0
RW 12/25
Temperature Rise
TEMPERATURE RISE IN °C
POWER IN W
MIL-R-26
Char.V
0 5 10 15 20 25
RW 12/51
500
400
300
200
100
0
RW 12/38
Temperature Rise POWER IN W
MIL-R-26
Char.V
TEMPERATURE RISE IN °C
0 20 40 60 80 100
RW 20/76
500
400
300
200
100
0
RW 12/76
Temperature Rise POWER IN W
MIL-R-26
Char.V
TEMPERATURE RISE IN °C
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0 50 100 150 200 250
RW 30/102
500
400
300
200
100
0
RW 20/102
Temperature Rise POWER IN W
MIL-R-26
Char.V
TEMPERATURE RISE IN °C
0 100 200 300 400 500
RW 30/267
500
400
300
200
100
0
RW 30/152
Temperature Rise POWER IN W
MIL-R-26
Char.V
TEMPERATURE RISE IN °C
0 100 200 300 400 500
RW 10/44
500
400
300
200
100
0
RW 12/25
Temperature Rise POWER IN W
MIL-R-26
Char.V
TEMPERATURE RISE IN °C
Legal Disclaimer Notice
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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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Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
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Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
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