參數(shù)資料
型號： WA84-820RJI
英文描述： RESISTOR 820R 3W
中文描述： 電阻820R 3W
文件頁數(shù)： 2/2頁
文件大小： 102K
代理商： WA84-820RJI
b
f
1
f
2
6
6
c
Body Location f
1
– f
2
≤
1.4 mm
Performance Data
MAXIMUM
TYPICAL
Load at rated power: 1000 hrs
at 25 or 70°c
Dry heat: 1000 hrs at 200°c
Derating from rated power at 25°c
Short term overload
Climatic
Climatic category
Long term damp Heat: 56 days
T.R.C. & Vibration
Robustness & Solder Heat
Pulse Handling
R%
R%
5.0 + .001
5.0 + .001
See derating curve
5.0 + .001
5.0 + .001
55/200/56
5.0 + .001
5.0 + .001
5.0 + .001
Data Available by Request
3.0
3.0
R%
R%
R%
R%
R%
R%
1.0
2.0
1.0
1.0
1.0
APPLICATION NOTES
Care must be taken when determining clearance
between the resistor body and the P.C.B. or other
components. Resistance is measured 6mm from
body.
PACKAGING
All resistors are supplied tape packed ready for
loading onto automatic sequencing and insertion
machines. The critical dimensions are shown in
figure 2.
Component wires will not protrude beyond the
outside edge of the tapes.
All taped resistors will be supplied either on reels or
in ammopacks, depending upon quantities orderded.
WA series resistors can be supplied preformed.
Contact factory for details.
General Purpose Cement Coated
Wirewound Resistors
WA80 SERIES
STANDARD QUANTITIES PER PACKAGE
Type
Reel
Large Ammopack
WA82
5000
5000
WA83
2500
2500
WA835
2500
1500
WA84
1000
1000
WA85
750
700
WA87
700
n/a
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
Figure 2
Type
b
c
WA82 WA83 WA835 WA84 WA85 WA87
52
52
52
5
5
5
67
10
63
10
85
10
20 40 60 80 100 120 140 160 180 200 220 240 260 280
Temp
130
120
110
100
90
80
70
60
50
40
30
20
10
0
WA80 Series Derating Curve
%
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