W21000J 查看數據表（PDF） - Bourns, Inc
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W21000J Datasheet PDF : 3 Pages
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W Series Wirewound Power Resistor
Product Dimensions
W
L
W
D
DIMENSIONS:
MM
(INCHES)
T (DIA.)
Model
W1M
W2M
W3M
W5M
W7M
W9M
W10M
L*
9.5 ± 1.0
(.374 ± .004)
11.5 ± 1.0
(.453 ± .004)
15.5 ± 1.0
(.610 ± .004)
17.5 ± 1.0
(.689 ± .004)
24.5 ± 1.0
(.965 ± .004)
39.5 ± 1.0
(1.555 ± .004)
52.5 ± 1.0
(2.067 ± .004)
Dimensions
D
W
4.0 ± 1.0
(.157 ± .004)
28.0 ± 3.0
(1.102 ± .118)
4.5 ± 1.0
(.177 ± .004)
28.0 ± 3.0
(1.102 ± .118)
5.5 ± 1.0
(.217 ± .004)
28.0 ± 3.0
(1.102 ± .118)
6.5 ± 1.0
(.256 ± .004)
28.0 ± 3.0
(1.102 ± .118)
8.5 ± 1.0
(.335 ± .004)
38.0 ± 3.0
(1.496 ± .118)
8.5 ± 1.0
(.335 ± .004)
38.0 ± 3.0
(1.496 ± .118)
8.5 ± 1.0
(.335 ± .004)
38.0 ± 3.0
(1.496 ± .118)
* Larger body size available upon request.
T
0.60 ± 0.05
(.024 ± .002)
0.65 ± 0.05
(.026 ± .002)
0.70 ± 0.05
(.028 ± .002)
0.75 ± 0.05
(.030 ± .002)
0.75 ± 0.05
(.030 ± .002)
0.75 ± 0.05
(.030 ± .002)
0.75 ± 0.05
(.030 ± .002)
Typical Part Marking
Resistors shall be marked with color
coding. Colors shall be in accordance with
JIS C 0802.
1st Significant
Figure
2nd Significant
Figure
Multiplier
Tolerance
Color
1st 2nd
Band Band
Multi-
plier
Tol.
Black
0
0
1Ω
Brown 1
1
10 Ω ±1 %
Red
2
2 100 Ω ±2 %
Orange 3
3
1K Ω
Yellow 4
4 10K Ω
Green 5
5 100K Ω ±0.5 %
Blue
6
6
1M Ω ±0.25 %
Violet
7
7 10M Ω ±0.10 %
Grey
8
8
±0.05 %
White
9
9
Gold
0.1 Ω ±5 %
Silver
0.01 Ω ±10 %
Power Derating Curve
120
100
80
60
40
20
0
-55 0
50 70 100 150 200 250 275 300
Ambient Temperature (°C)
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
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