Quick Reference Guide
Vishay Sfernice
Metal Film Resistors
WIREWOUND TECHNOLOGY
MOLDED RESISTORS
REF.
DATASHEET POWER
RATING
No.
25 °C
1W
50003
2W
RESISTANCE
RANGE
Ω
0.04 to 2.2K
± 0.1
to
±5
- 55
+ 200
± 25
± 50
± 100
TOL.
%
TEMP.
LIMITS
°C
TYP.
TCR
ppm/°C
DIMENSIONS
LxIxH
mm
6.9 x 3.8 x 3.8
MSP 1B
MSP 2B
0.04 to 4.7K
11.4 x 7 x 5
MSP 3B
2.5 W
0.04 to 13K
14.8 x 7 x 6.6
THICK FILM TECHNOLOGY
DATASHEET POWER
RATING
No.
RESISTANCE
RANGE
STANDARD
MODEL
Ω
TOL.
TEMP.
LIMITS
°C
TYP.
TCR
ppm/°C
DIMENSIONS
MODEL
%
mm
TO-220 CASE
25 °C
20 W
0.012 to 1M
25 °C
50 W
±1
to
± 10
- 55
+ 155
RTO 20
50005
10.1 x 15 x 4.5
± 150
≥
0.5
Ω
± 250
≥
0.1
Ω
RTO 50
50035
10.1 x 15 x 4.5
FOR MOUNTING ONTO A HEATSINK 5 W TO 50 W
RCH 5
25 °C
5W
10 W
50006
RCH 25
25 W
0.24 to 1M
± 150
R
>1
Ω
± 250
R
<1
Ω
16.6 x 9 x 15
RCH 10
±1
to
± 10
19 x 11 x 15
- 55
+ 125
28 x 14 x 15
RCH 50
50 W
47.8 x 15.5 x 15
Document Number: 50002
Revision: 22-Jul-09
For technical questions, contact:
sfer@vishay.com
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3
Quick Reference Guide
Vishay Sfernice
Metal Film Resistors
MODEL
DATASHEET POWER
RATING
No.
RESISTANCE
RANGE
STANDARD
MODEL
Ω
TOL.
TEMP.
LIMITS
°C
TYP.
TCR
ppm/°C
DIMENSIONS
%
mm
100 W
RPH 100
50046
25 °C
100 W
0.092 to 1M
±1
to
± 10
- 55
+ 125
± 300
<1
Ω
± 150
>1
Ω
65.5 x 46.7 x 21.6
WIRE THICK FILM TECHNOLOGY
SOT-227 B CASE - 20 W TO 200 W
RES.
POWER RANGE TOL.
PER
DATASHEET RATING
STD.
RES.
AT
MODEL
25 °C
No.
Ω
%
200 W
100 W
0.046
to
1M
TEMP.
ELEC.
LIMITS
DIAGRAMS
°C
TYP.
TCR
ppm/°C
DIMENSIONS
MODEL
mm
RTOP 200
RTOP 100
R
DRTOP 100
100 W
0.092
to
1M
R
±1
to
± 10
R2
DRTOP 50
50045
50 W
R2
R1
- 55
+ 125
± 300
R
<1
Ω
± 150
R
>1
Ω
38 x 25 x 10
TRTOP 40
TRTOP 30
QRTOP 35
QRTOP 20
40 W
30 W
35 W
20 W
0.046
to
1M
R3
R1
R4
R2
R3
R1
R4
HIGH POWER FOR MOUNTING ONTO A HEATSINK - 250 W AND 500 W
RES.
RANGE
DATASHEET POWER
STD.
RATING MODEL
No.
RPS 250D
RPS 500D
50007
50047
70 °C
250 W
70 °C
500 W
Ω
0.24
to
1M
TOLERANCE
TEMP.
LIMITS
°C
- 55
+ 125
TYP.
TCR
ppm/°C
± 300
<1
Ω
± 150
>1
Ω
DIMENSIONS
MODEL
%
mm
± 1 to ± 10
73 x 60 x 24.5
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4
For technical questions, contact:
sfer@vishay.com
Document Number: 50002
Revision: 22-Jul-09
Quick Reference Guide
Metal Film Resistors
Vishay Sfernice
MEDIUM DISSIPATION WIREWOUND RESISTORS
REFERENCES
VISHAY
SFERNICE
CECC
NF BS
DATASHEET
No.
POWER
RATING
RES.
TEMP.
RANGE
TOL.
LIMITS
STD.
MODEL
Ω
%
°C
DIMENSIONS
TYP.
TCR
ppm/°C
Ø
NOM.
mm
L
NOM.
mm
ENAMELLED-POWER (E24)
RWM 4 x 10
RB
59
RWM 4 x 22
RB
61
RB
RWM 5 x 26
57
RB
RWM 6 x 22
57
RB
RWM 8 x 26
60
RB
RWM 6 x 34
60
RB
RWM 8 x 34
58
RB
RWM 8 x 45
58
RWM 10 x 45
RWM 10 x 64
RWM 10 x 65
Note
(1)
With surface temperature 450 °C
-
-
-
JB
HB
-
KB
-
LB
-
MB
-
-
-
50008
25 °C
(1)
3 W 5.5 W
5W
7W
7W
8W
8W
7W
10 W
10 W
10 W
12 W
0.1 to
10K
0.1 to
16K
0.1 to
27K
0.1 to
39K
±5
0.1 to std.
27K
0.33 to ± 1
36K
to
± 10
0.33 to
on
36K
req.
0.47 to
62K
0.47 to
62K
0.68 to
100K
0.68 to
100K
5.5
5.5
7.4
6.5
7.4
- 55
+ 75
+ 350
7.4
9.4
9.4
9.4
9.4
33.7
44.8
44.8
63.8
63.8
7.4
33.7
12
22.1
24.7
18
24.7
11 W 14 W
11 W 20 W
25 W 25 W
25 W 25 W
30 W 30 W
MOLDED-INSULATED-PRECISION (E24-E48-E96)
RLP 1
molded
RLP 2
molded
RLP 3
insulated
RLP 6
insulated
RLP 10
insulated
RP 8
RP 7
RP 4
-
-
50009
25 °C
1W
2W
3W
6W
10 W
0.05 to
2.2K
0.025 to
6.8K
± 0.1
0.01 to
to
15K
±5
0.02 to
59K
0.06 to
150K
2.5
4
- 55
+ 275
± 20
5.54
± 50
8.7
10.3
23.8
46.8
14
6.5
10.2
MOLDED-INSULATED-PRECISION (E24-E48-E96)
58 BSI
molded
63 BSI
molded
68 BSI
molded
516 BSI
insulated
523 BSI
insulated
923 BSI
insulated
932 BSI
insulated
947 BSI
insulated
Document Number: 50002
Revision: 22-Jul-09
-
-
-
-
50011
-
-
-
-
5W
6W
8W
10 W
25 °C
1W
2W
3W
4W
0.1 to
2K
0.025 to
4K
0.01 to
15K
0.01 to
20K ± 0.5
to
0.015 to ± 5
40K
0.02 to
60K
0.035 to
100K
0.06 to
150K
2.4
3.7
5.6
- 55
+ 200
± 100
± 300
5
5
9
9
9
6.5
10
15
16
23
23
32
47
For technical questions, contact:
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5
Quick Reference Guide
Vishay Sfernice
Metal Film Resistors
MEDIUM DISSIPATION WIREWOUND RESISTORS
REFERENCES
VISHAY
SFERNICE
CECC
NF BS
DATASHEET
No.
POWER
RATING
RES.
TEMP.
RANGE
TOL.
LIMITS
STD.
MODEL
Ω
%
°C
DIMENSIONS
TYP.
TCR
ppm/°C
Ø
NOM.
mm
L
NOM.
mm
MOLDED-PRECISION (E24-E48-E96)
RMB 075
RMB 1.5
RMB 3
RMBS 0.5
RMBS 1
RMBS 2
Note
• RMBS spare parts
-
-
-
RP 1
RP 2
RP 3
-
-
-
50010
-
-
-
0.50 W
1W
2W
25 °C
0.75 W
1.50 W
3W
0.1 to
2K
0.1 to
6.81K
0.051 to
13K ± 0.1
to
0.1 to ± 5
2K
0.1 to
6.81K
0.015 to
13K
2.5
4
- 55
+ 275
+ 200
± 20
± 50
6.4
2.5
4
6.4
6.5
10.2
16.2
6.5
10.2
16.2
CEMENTED
SG 3
50012
SG 4
Note
• Undergoes European Quality Insurance System (CECC)
40 °C
3W
4W
0.01 to
±1
3.3K
to
0.1 to ± 10
3.9K
- 55
+ 200
4.8
± 150
5.5
15.8
13
HIGH DISSIPATION WIREWOUND RESISTORS
REFERENCES
DATASHEET
VISHAY
SFERNICE
CECC
CONF.
No.
POWER
RATING
RES.
TEMP.
RANGE
STD. TOL. LIMITS
MODEL
Ω
%
°C
DIMENSIONS
TYP.
TCR
ppm/°C
Ø
NOM.
mm
L
NOM.
mm
VITREOUS EXTERNAL RINGS OR COLLARS (E12)
RW 8 x 34
RW Model
RW 10 x 50
RW 13 x 70
RW 16 x 94
RW 20 x 117
-
RB
13.70
-
RB
20.117
50016
-
25 °C
13 W
20 W
32 W
50 W
80 W
1 to
10K
1 to
27K
2.2 to
56K
2.2 to
56K
2.7 to
68K
11.5
13
±5
- 55
+ 450
+ 75
16
19.5
23
34
50
70
94
117
VITREOUS EXTERNAL COLLARS ELECTRICAL TRACTION (E12)
RWST
25 x 138
RWST
25 x 168
RWST
30 x 250
RWST
40 x 370
RWST
50 x 373
-
RB
25 x 168
RB
30 x 250
-
-
25 °C
110 W
180 W
50017
320 W
600 W
800 W
2.7 to
82K
2.7 to
100K
4.7 to
220K
8.2 to
360K
12 to
430K
28
28
±5
- 55
+ 450
+ 75
33
45
53
138
168
250
370
373
RWST Model
CS Collars
www.vishay.com
6
For technical questions, contact:
sfer@vishay.com
Document Number: 50002
Revision: 22-Jul-09
Quick Reference Guide
Metal Film Resistors
Vishay Sfernice
MEDIUM DISSIPATION WIREWOUND RESISTORS
REFERENCES
DATASHEET
VISHAY
SFERNICE
CECC
CONF.
No.
POWER
RATING
RES.
TEMP.
RANGE
TOL.
LIMITS
STD.
MODEL
Ω
%
°C
DIMENSIONS
TYP.
TCR
ppm/°C
Ø
NOM.
mm
L
NOM.
mm
VITREOUS ADJUSTABLE (E6)
RA 13 x 70
RA Model
B Collars
RA 16 x 94
RA 20 x 117
RA 25 x 138
RA 25 x 168
RA 30 x 250
RBA
13.70
-
RBA
20.117
-
RBA
25.168
-
25 °C
21 W
35 W
50 W
50019
75 W
120 W
180 W
33 to
3.9K
68 to
3.9K
100 to
4.7K
150 to
6.8K
220 to
10K
330 to
22K
- 55
+ 350
16
19.5
23
+ 75
28
28
33
138
168
250
70
94
117
± 10
VITREOUS UNDULATED WIREWOUND (E12)
RSO
25 x 138
RSO
25 x 168
RSO
30 x 250
RSO
40 x 370
RSO
50 x 373
-
-
-
-
-
50018
25 °C
160 W
200 W
350 W
700 W
1000 W
0.068 to
12
0.1 to
18
0.22 to
33
0.33 to
56
0.39 to
68
±5
to
± 10
- 55
+ 450
+ 75
39
39
44
54.5
65
138
168
250
370
373
FIXED OR ADJUSTABLE SEMI-VITREOUS (E12)
RSSD 8 x 34
RSSD 10 x 50
RSSD 13 x 70
RSSD 16 x 94
RSSD 20 x 117
50020
RSSD 25 x 138
RSSD 25 x 168
RSSD 30 x 250
RSSD 40 x 370
RSSD 50 x 373
140 W
200 W
280 W
450 W
600 W
25 °C
16 W
25 W
42 W
70 W
100 W
0.12 to
10
0.12 to
22
0.12 to
43
0.33 to
75
0.22 to
100
0.1 to
150
0.12 to
220
0.22 to
360
0.47 to
470
0.68 to
560
±5
to
± 20
- 55
+ 450
10
11.5
14.5
18
22
± 75
27
27
32
43
53
138
168
250
370
373
34
50
70
94
117
Document Number: 50002
Revision: 22-Jul-09
For technical questions, contact:
sfer@vishay.com
www.vishay.com
7
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