WW/MWW/NWW Series
Stackpole Electronics, Inc.
Resistive Product Solutions
General Purpose and Precision Wirewound Resistor
Features:
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WWS offers miniature size at higher power rating
High performance for low cost
High power to size ratio
MWW – completely molded construction with welded terminations
Complete welded terminations
Tinned copper leads
Available in non-inductive styles
High temperature silicone coating
RoHS compliant
Higher operating temperatures available
Bulk packaging available - contact Stackpole for package quantities
Electrical Specifications
Power Rating Power Rating
Ohmic Range (Ω) and Tolerance (*)
Type / Code MIL-R-26 Ref.
TCR (ppm/ºC)
(W)
@ 125ºC
0.4 W
1 W
(W)
@ 70ºC
0.5 W
1.1 W
1.3 W
2.1 W
2.6 W
2.6 W
3.2 W
3.2 W
3.4 W
4.3 W
4.3 W
5.1 W
5.1 W
7.2 W
7.2 W
7.7 W
11 W
0.1%
0.5%
1%
5%
WW12
WW1
-
-
5 - 2K
3 - 2K
3 - 2K
5 - 2K
2 - 3K
2 - 3K
2 - 3K
2 - 3K
WW1A
WW2
RW-70
RW-69
1 W
1 - 5K
1 - 5K
1 - 5K
1 - 5K
1.5 W
2.5 W
2.5 W
3 W
3 W
3 W
4 W
4 W
5 W
5 W
6.5 W
6.5 W
7 W
10 W
10 W
0.4 W
1 W
1 - 10K
1 - 10K
1 - 10K
1 - 22K
3 - 10K
1 - 30K
1 - 40K
1 - 22K
1 - 50K
1 - 40K
1 - 70K
1 - 50K
1 - 70K
0.5 - 10K
0.5 - 10K
0.5 - 10K
0.5 - 22K
1 - 10K
0.5 - 30K
0.5 - 40K
0.5 - 22K
0.5 - 50K
0.5 - 40K
0.5 - 70K
0.5 - 50K
0.5 - 70K
0.5 - 10K
0.5 - 10K
0.5 - 10K
0.5 - 22K
1 - 10K
0.5 - 30K
0.5 - 40K
0.5 - 22K
0.5 - 50K
0.5 - 40K
0.5 - 70K
0.5 - 50K
0.5 - 70K
0.5 - 10K
0.5 - 10K
0.5 - 10K
0.5 - 22K
1 - 10K
0.5 - 30K
0.5 - 40K
0.5 - 22K
0.5 - 50K
0.5 - 40K
0.5 - 70K
0.5 - 50K
0.5 - 70K
WW2S
WW2A
WW3
-
-
RW-79
WWS3
WW3A
WW4
-
-
-
WWS4
WW5
RW-79
RW-67, RW-74
WWS5
WW7
-
-
WWS7
WW7B
WW10
WWS10
NWW12
NWW1
NWW1A
NWW2
NWWS2
NWW2A
NWW3
NWWS3
NWW3A
NWW4
NWWS4
NWW5
NWWS5
NWW7
NWWS7
NWW7B
NWW10
NWWS10
MWW1
MWW3
MWW5
MWW10
NMWW1
NMWW3
NMWW5
RW-67, RW-74
-
RW-78
1 - 100K 0.5 - 100K 0.5 - 100K 0.5 - 100K
-
-
-
11 W
1 - 70K
10 - 1K
4 - 1.5K
2 - 2.5K
2 - 5K
0.5 - 70K
10 - 1K
4 - 1.5K
2 - 2.5K
2 - 5K
0.5 - 70K
10 - 1K
2 - 1.5K
1 - 2.5K
1 - 5K
0.5 - 70K
10 - 1K
2 - 1.5K
1 - 2.5K
1 - 5K
0.5 W
1.1 W
1.3 W
2.1 W
2.6 W
2.6 W
3.2 W
3.2 W
3.4 W
4.3 W
4.3 W
5.1 W
5.1 W
7.2 W
7.2 W
7.7 W
11 W
RW-70
RW-69
1 W
< 1Ω = ±90ppm/ºC
1Ω to 10Ω = ± 50ppm/ºC
>10Ω = ±20ppm/ºC
1.5 W
2.5 W
2.5 W
3 W
3 W
3 W
4 W
4 W
5 W
5 W
6.5 W
6.5 W
7 W
10 W
10 W
1 W
3 W
5 W
10 W
1 W
-
-
2 - 5K
2 - 5K
1 - 5K
1 - 5K
2 - 5K
2 - 5K
1 - 5K
1 - 5K
RW-79
2 - 11K
5 - 5K
2 - 11K
5 - 5K
1 - 11K
3 - 5K
1 - 11K
3 - 5K
-
-
-
2 - 15K
2 - 20K
2 - 11K
2 - 25K
2 - 20K
2 - 35K
2 - 25K
2 - 35K
2 - 50K
2 - 35K
5 - 2K
2 - 15K
2 - 20K
2 - 11K
2 - 25K
2 - 20K
2 - 35K
2 - 25K
2 - 35K
2 - 50K
2 - 35K
5 - 2K
1 - 15K
1 - 20K
1 - 11K
1 - 25K
1 - 20K
1 - 35K
1 - 25K
1 - 35K
1 - 50K
1 - 35K
5 - 2K
1 - 15K
1 - 20K
1 - 11K
1 - 25K
1 - 20K
1 - 35K
1 - 25K
1 - 35K
1 - 50K
1 - 35K
5 - 2K
RW-79
RW-67, RW-74
-
-
RW-67, RW-74
-
RW-78
-
11 W
RW-70
RW-79
RW-67, RW-74
RW-68, RW-74
RW-70
1.3 W
3.2 W
5.5 W
11 W
1.3 W
3.2 W
5.5 W
11 W
3 - 20K
2 - 40K
2 - 80K
10 - 1K
5 - 10K
3 - 20K
3 - 40K
3 - 20K
2 - 40K
2 - 80K
10 - 1K
5 - 10K
3 - 20K
3 - 40K
3 - 20K
2 - 40K
2 - 80K
5 - 1K
3 - 10K
2 - 20K
2 - 40K
3 - 20K
2 - 40K
2 - 80K
5 - 1K
3 - 10K
2 - 20K
2 - 40K
RW-79
RW-67, RW-74
3 W
5 W
10 W
NMWW10 RW-68, RW-74
(*) Other resistance values available - contact factory for details.
Rev Date: 08/07/2014
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
1
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