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Dated : 23/05/2002
®
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
ST 2SC2787
10.7MHz
Forward transfer amittance
vs. collector current
0.2
1
10
100
500
-gre
Reverse transfer admittance
vs. collector current
gfe 100MHz
-bfe 10.7MHz
I C, mA
110 20
-bfe 100MHz
1
0.1
0.4
0.8
0.6
gfe
VCE=6V
output short
0.2 -gre
0
100 MHz
I C, mA
110
-bre 100 MHz
VCE=6V
input short
10.7MHz
10.7MHz
-bre
-3
Collector base time constant
vs. emitter current
I E, mA
-0.1
1
10
-0.3
-1
100
1000
-10 -20
VCB= 6V
f=31.9MHz
Input admittance vs. collector current
gie
0.1
0.1
1
100
10
10.7MHz
I C, mA
120
10
gie
bie
bie
100 MHz
VCE=6V
output short
Ctr(Ic=0)
Input & output capacitance
vs. reverse voltage
VBE(sat)
Base collector saturation volage
vs. collector current
0.1
0.01
0.1
1
I C, mA
1
VCE(sat)
20
10
0.5
0.2
0.1
IC/IB=10
2
1
3
10
VCB, V
VEB, V
10
1
100
f=1MHz
Cob(IE=0)
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