RW
coat insulated miniature precision
power wirewound resistors
EU
features
• Resistors meeting MIL-R-26E (U and
V characteristics) and surface temperature
(hot spot) 350°C max.
• Resistors with a wide range of 0.1Ω ~ 62kΩ,
covering applications from precision to power
• RW N type resistors are non-inductive wound
and can be used in high frequency applications.
• Marking: Black body color with alpha-numeric marking
• Products with lead-free terminations meet EU RoHS
and China RoHS requirements
dimensions and construction
Dimensions inches (mm)
L
l
l
Ceramic Core
t
Type
L
D
d (nom.)
l
.315 .039 .138+.039
-0
RW1/2, RW1/2N
d
+1.0
D
(1.6
)
(8.0 1.0)
.020
(0.5)
-0
.413 .039 .106 .039
(10.5 1.0) (2.7 1.0)
RW1, RW1N
RW2, RW2N
RW3, RW3N
RW5, RW5N
RW7, RW7N
RW10, RW10N
.512 .039 .205 .039
(13.0 1.0) (5.2 1.0)
.031
(0.8)
Insulation
Coating
Resistive
Wire
Electrode Lead
Cap Wire
.650 .039 .252 .039
(16.5 1.0) (6.4 1.0)
1.50 .118
(38.0 3.0)
.866 .039
(22 1.0)
.307 .059
(7.8 1.5)
.039
(1.0)
1.24 .039
(31.5 1.0)
1.81 .059 .366 .089
(46.0 1.5) (9.3 1.5)
ordering information
Pb Free
Type
RW
1/2
N
T
103
J
Power
Rating
Winding
Method
Termination
Material
Nominal
Resistance
Type
Tolerance
1/2: 0.5W
1: 1W
2: 2W
3: 3W
5: 5W
Nil: Standard
winding
N: Non-inductive
winding
T: Sn
3%, 5%: 2 significant
figures + 1 multiplier
“R” indicates decimal
on value <10Ω
D: 0.5%
F: 1%
H: 3%
J: 5%
0.5%, 1%:
3 significant figures
+ 1 multiplier “R”
indicates decimal
on value <100Ω
Packaging quantity:
7: 7W
10: 10W
RW1/2 ~ RW1: 1,000 pieces
RW2 ~ RW7: 500 pieces
RW10: 300 pieces
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/19/08
147
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com