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Dated : 07/12/2002
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
V
0.5
0.4
0.3
VCEsat
0.2
0.1
0
-1
10
1
10
10 mA
2
ST 9014
Collector saturation voltage
versus collector current
IC
DC current gain
versus collector current
10
10
5
4
3
2
1
h FE
-2
10
10
1
10
2
10 mA
IC
-3
10
10 mA
1
10
IC
0
10
20
F
Common emitter
collector characteristics
Noise figure
versus collector current
ST 9014
ST 9014
VCE=5V
f=1KHz
Tamb=25 C
o
Tamb=100 C
o
o
25 C
o
-50 C
I C/IB=20
Tamb
=25 C
VCE=5V
o
-50 C
100 C
o
o
dB
5
2
5
2
5
2
-1
4
2
3
5
10
5
4
2
3
2
3
18
16
14
12
8
6
4
2
10 -2
-1
500
100K
1K
10K
RG=1M
500
2
10 -1
5
1
25
VCE
10
52
10 V
2
IC=0.2mA
RG=2K
f=1KHz
f=200Hz
Tamb=25 C
ST 9014
4
0
2
8
6
10
18
14
12
F
16
dB
20
o
ST 9014