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Dated : 05/10/2005
®
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
1000
700
500
300
200
100
70
50
30
20
10
0.1
0.2
0.3
0.5 0.7
1.0
2.0
3.0
5.0 7.0
10
20
30
50 70
100
200
300
500 700 1.0 K
VCE=1.0V
VCE=10V
TJ=125 C
25 C
-55 C
o
o
o
I C, COLLECTOR CURENT (mA)
Figure 1. DC Current Gain
I B, BASE CURENT (mA)
0.3
0.01
0
0.005
0.4
0.6
1.0
0.8
0.03 0.05
0.1
0.2
10
0.5
1.0
2.0
3.0
5.0
50
20
30
Figure 2. Collector Saturetion Region
0.2
0.02
I C=1.0mA
10mA
150mA
500mA
o
TJ= 25 C
ST 2N2222 / 2N2222A
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