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參數(shù)資料
| 型號(hào)： | FA8025 |
| 廠商： | TT Electronics / Welwyn |
| 英文描述： | Fusible Metal Film Resistors |
| 中文描述： | 可熔金屬膜電阻 |
| 文件頁(yè)數(shù)： | 2/2頁(yè) |
| 文件大小： | 125K |
| 代理商： | FA8025 |
Fusible Metal Film
Resistors
FA8025 series
Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Issue B · 03.02
Welwyn Components
154
b
f
1
f
2
6
6
c
Body Location f
1
– f
2
1.4 mm
Packaging
The preferred method of packaging is taped and ammo
packed, see figure 1 for critical dimensions.
Alternative packaging is available by special request.
Lead Formed resistors can also be supplied. Standard options
of Lancet, Radial and Goalpost forming are shown in Lead
Form Information section.
Figure 1
Normal rated
power
Fusing
Time
(secs)
Min power for
guaranteed
fusing
Max sale
fusing
power
Min fusing time
Max fusing time
Initial Power (watts)
Graph 1
Graph 2
Graph 3
Predicting Fusing Time For Defined Power Input
Graphs 1 to 3.
Fusing:
After fusing the final resistance value will be 50 times the
initial value. See graph for explanation of fusing curves.
Fusible Resistors: Typical Fusing Window
Graph 4.
l
c
y
T
m
u
m
i
a
M
Load: 1000 hours at 70C
5
2
%
R
Shelf life: 12 months at room temperature
2
5
%
R
C
5
1
z
C
7
w
o
p
e
m
o
n
D
Temperature rapid change
2
5
%
R
Resistance to solder heat
2
5
%
R
Performance Data
Type
FA8225
FA8325
FA8425
Ammopack
5000
2500
1000
Standard Quantities Per Package
Type
FA82*
FA82/FA83
FA84
b
26
52
67
c
5
5
10
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