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參數資料
| 型號： | WA84-1R8JI |
| 英文描述： | RESISTOR 1.8R 3W |
| 中文描述： | 電阻1.8R 3W |
| 文件頁數： | 1/2頁 |
| 文件大小： | 102K |
| 代理商： | WA84-1R8JI |
General Purpose Cement
Coated Wirewound
Resistors
WA80 SERIES
●
Flameproof cement coating
●
All welded construction
●
Resistance values down to 0.01 ohms
Electrical Data
WA82
1
.86
WA83
2.0
1.6
0.05 to 900
50
250
<1
:350
WA835
2.5
2.0
0.05 to 900
75
250
WA84
3.0
2.5
0.01 to 2K2
100
350
WA85
5
4.3
.05 to 4K5
150
500
>1
:200
WA87
7
6
0.15 to 10K
150
700
Power rating at 25°c
Power rating at 70°c
Resistance range
Limiting element voltage
Isolation voltage
TCR
Resistance tolerance
Values
Thermal impedance
Ambient temperature range
Physical Data
Dimensions (mm) and Weight (g)
watts
watts
ohms
volts
volts
ppm/°C
0.068 to 430
50
250
%
5, 10
E24 preferred
82
- 55 to 155
°C/watt
140
110
90
54
35
°C
PCB
Min
bend
radius
0.6
1.2
1.2
1.2
1.2
1.2
mounting
centres
10.20
12.70
18.40
20.30
22.86
31.40
Wt
nom.
0.22
0.50
0.50
1.10
1.75
4.40
Type
WA82
WA83
WA835
WA84
WA85
WA87
L max.
6.2
9.0
12.5
14.5
16.5
25.0
D max.
2.8
3.6
4.5
5.2
7.0
8.8
f min.
21.20
19.80
17.80
24.55
23.55
28.30
d nom.
0.6
0.8
0.8
0.8
0.8
0.8
CONSTRUCTION
A high quality ceramic substrate is assembled with
interference fit end caps to which are welded the termination
wires. The resistive element is wound on the substrate and
welded to the caps. Cement protection is applied to the
resistor body before marking with indelible ink.
TERMINATIONS
Material
Solder-coated copper wire on 82, 83, 835 and
84, copper weld on 85 and 87.
The terminations meet requirements of
IEC 68.2.21.
The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2.
Strength
Solderability
Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, England Tel: 01670 822181 Fax: 01670 829465 Web: http://www.Welwyn-TT.co.uk
Issue A 07/99
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
L
D
f
d dia
MARKING
WA85 and 87 resistors are legend marked with type
reference, resistance value and tolerance. In conformance
with IEC 62.
WA82, 83, 835 and 84 resistors RIO and above are colour
coded with 4 bands in conformance with IEC 62. Values
below RIO are 3 band marked, two digits and tolerance,
there is no multiplier band.
SOLVENT RESISTANCE
The body protection and marking are resistant to all normal
industrial cleaning fluids suitable for printed circuits.
FLAMMABILITY
The resistor coating will not burn under any condition of
applied temperature or component overload.
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| WA84-220RJI | RESISTOR 220R 3W |
| WA84-22RJI | RESISTOR 22R 3W |
| WA84-2R2JI | RESISTOR 2.2R 3W |
| WA84-330RJI | RESISTOR 330R 3W |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| WA84-1R8JI | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 3W 5% 1R8 |
| WA84-220RJI | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 3W 5% 220R 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 3W 5% 220R; Product Range:WELWYN - WA80 Series; Resistance:220ohm; Power Rating:3W; Resistance Tolerance: 5%; Resistor Case Style:Axial Leaded; Resistor Element Material:Wirewound; Temperature Coefficient: 200ppm/C; ;RoHS Compliant: Yes |
| WA84-220RJI | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 3W 5% 220R |
| WA84-22RJI | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 3W 5% 22R 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 3W 5% 22R 制造商:TT Electronics / Welwyn 功能描述:RESISTOR, 3W 5% 22R; Product Range:WELWYN - WA80 Series; Resistance:22ohm; Power Rating:3W; Resistance Tolerance: 5%; Resistor Case Style:Axial Leaded; Resistor Element Material:Wirewound; Temperature Coefficient: 200ppm/C; ;RoHS Compliant: Yes |
| WA84-22RJI | 制造商:TT Electronics / Welwyn 功能描述:RESISTOR 3W 5% 22R |
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