POWER TYPE RESISTORS
MInIaTURE TYPE
POWER
RW
POWER TYPE
RESISTORS
WIREWOUND
STRUCTURE
1
2
3
4
5
Insulation coating
Resistive element (wire)
Lead wire
Electrode cap
Ceramic core
IDEnTIFICaTIOn
PRODUCT CODE
RW
COaTIng COLOR
Black
MaRKIng
Alpha Numeric
(Type, R-value and
tolerance)
all these products have Pb-free terminations and
meet EU-RoHS and China-RoHS requirements
TYPE DESIgnaTIOn (HOW TO ORDER)
RW
PRODUCT
CODE
1/2
POWER RATING
Unit: Watt
1/2 … 10
T
TERMINATION
SURFACE
MATERIAL
T: Sn
2611
NOMINAL
RESISTANCE
D, F: 4 digits
H, J: 3 digits
F
RESISTANCE
TOLERANCE
D: (±0.5%), F: (±1%)
H: (±3%), J: (±5%)
Contact us when you have control request for environmental hazardous
material other than the substance specified by EU-RoHS
Contact our sales representatives before you use our products for applications including
automotives, medical equipment and aerospace equipment. Malfunction or failure of the
products in such applications may cause loss of human life or serious damage .
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order/or use.
FEaTURES
■
■
■
■
■
■
■
■
■
Wirewound high power type resistor (0.5W to 10W)
Precision type resistor in a wide resistance range with light tolerances
Excellent long term stability
Excellent environment performance
Tolerance ±0.1% is available on request
Meets or exceeds MIL-R-26E (U and V characteristics) and surface temp.
(hot spot) 350 °C max.
Rated ambient temperature: +25°C
Operating temperature range: -55°C … +275°C (characteristics U)
Operating temperature range: -55°C … +350°C (characteristics V)
DIMEnSIOnS (mm)
TYPE
RW 1/2 T
RW 1 T
RW 2 T
RW 3 T
RW 5 T
RW 7 T
RW 10 T
L
8 ± 1.0
10.5 ± 1.0
13 ± 1.0
16.5 ± 1.0
22 ± 1.0
31.5 ± 1.0
46 ± 1.5
øD
1.6
- 0
2.7 ± 1.0
5.2 ± 1.0
6.4 ± 1.0
7.8 ± 1.5
7.8 ± 1.5
9.3 ± 1.5
+ 1.0
ø d (nominal)
0.5
0.5
0.8
1.0
1.0
1.0
1.0
l
38 ± 3
DERaTIng CURVE
SURFaCE TEMPERaTURE RISE
1
2
Characteristic U: Recommended maximum power rating for best long term
stability. Allows 275°C hot spot and ±0.5% load life stability.
Characteristic V: Increased power rating allows 350°C hot spot and ±3% ∆R after
2000 Hrs load life stability.
RaTIng
TYPE
RW 1/2 T
RW 1 T
RW 2 T
RW 3 T
RW 5 T
RW 7 T
RW 10 T
T.C.R.
(ppm/K)
±90: R<1Ω
±50: 1Ω≤R<10Ω
±20: R≥10Ω
POWER RaTIng* (at 25°C)
CHaRaCTERISTICS
V
U
0.5 W
––
1 W
––
2 W
3 W
3 W
5 W
5 W
7 W
7 W
10 W
10 W
14 W
MaX.
WORKIng
VOLTagE
80 V
130 V
140 V
200 V
400 V
600 V
1000 V
MaX.
OVERLOaD
VOLTagE
150 V
300 V
500 V
600 V
700 V
800 V
1500 V
RESISTanCE RangE anD TOLERanCE**
D(±0.5%) • F(±1%)
H(±3%) • J(±5%)
n
E24 & 25, 50 x 10
n
E24 • E96 & 25, 50 x 10
10 Ω ... 2.61 kΩ
0.47 Ω... 2.7 kΩ
1 Ω . . . 5 .11 kΩ
0.1 Ω . . . 5 .1 kΩ
1 Ω... 10 kΩ
0.1 Ω... 10 kΩ
1 Ω . . . 15 kΩ
0.1 Ω . . . 15 kΩ
1 Ω... 30.1 kΩ
0.1 Ω... 30 kΩ
1 Ω . . . 45 .3 kΩ
0.1 Ω . . . 47 kΩ
1 Ω... 60.4 kΩ
0.1 Ω... 62 kΩ
* For resistors operated at an ambient temperature of +25°C or above, the power rating shall be derated in accordance with the above derating curve.
** Tolerance ±0.1% is available on request.
Rated voltage = Power rating x resistance value or max. working voltage, whichever is lower.
z
EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de
124
Revision: 14. Dec. 2009
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