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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
VCE - V
Normalized h-parameters vs.
collector emitter voltage
hfe - Small signal current gain
Input impedance, voltage feedback
ratio and output admittance vs.
small signal current gain
0
20
40
60
80
100
0
10
20
30
40
0
200
20
10
40
30
50
50
VCE=6V
Ic=1mA
f=1kHz
400
600
hoe
hre
hie
1000
800
hoe
0
1
hfe
2
10
hie
hre
3
Ic=1mA
f=1kHz
He=
he(VCE)
he(VCE=6V)
hie
hoe
20
hre
hfe
30