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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)
®
ST 2SC1907
C o l l e c t o r C u r r e n t IC ( m A )
Transition Frequency vs.
Collector Current
VC E
=10V
Base Time Constant vs
Collector Current
C o l l e c t o r C u r r e n t IC ( m A )
VCB=10V
Output end short
Input Conductance g ib (mS)
Input Admittance Characteristics
15
mA
10 m
A
I C =
5 m
A
y ib = g ib+jb ib
900
1000
1200 MHz
600
800
400
VCB=10V
Input end short
y rb = g rb+jb rb
Reverse Transfer Conductance g rb (mS)
Reverse Transfer Admittance
Characteristics
1200
1000
400MHz
800
900
600
VCB=10V
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