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Dated : 22/07/2004
®
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
ST 2SC945
0.5
0.1
0.01
0.3
0.2
0.4
0.8
VBE, V
0.6
0.7
0.9
1
Collector current vs. base emitter voltage
10
1
100
VCE=6V
pulsed
20
0.1
VCE(sat)
100
6V
0.1
0.01
Collector Current, mA
1
100
10
IC/IB=10
Emitter Current, mA
-0.1
10
-1
-10
1V
2V
-100
1
10
Collector and base saturation
voltage vs. collector current
VBE(sat)
pulsed
IC/IB=10
50
20 50
VCE=10V
1000
10000
fT - IE
0.1
0.1
1
VEB, VCB - V
1
Cob(IE=0)
10
100
10
100
VEB, VCB vs.Cib, Cob
f=1MHz
Cib(Ic=0)
DC current gain
0
200
400
200
600
400
800
1000
Small signal current gain
vs. DC current gain
800
600
1000
VCE=6V
Ic=1mA
f=1kHz
Normalized h-parameters
vs. collector current
0.1
0.1
1
Hoe
Hfe
Hre
10
Hie
Ic , mA
1
10
Hre
Hie
he(Ic)
he(Ic=1mA)
VCE=6V
f=1kHz
He=
Hfe
Hoe
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