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Dated : 11/06/2004
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
ST 28S
Characteristics at Tamb=25
OC
Symbol
Min.
Typ.
Max.
Unit
DC Current Gain
at VCE=1V, IC=5mA
at VCE=1V, IC=100mA
at VCE=1V, IC=800mA
hFE
hFE
hFE
45
200
40
170
-
80
-
1000
-
-
-
-
Collector Base Breakdown Voltage
at IC=100μA
V(BR)CBO
40
-
-
V
Collector Emitter Breakdown Voltage
at IC=2mA
V(BR)CEO
20
-
-
V
Emitter Base Breakdown Voltage
at IE=100μA
V(BR)EBO
6
-
-
V
Collector Cutoff Current
at VCB=35V
ICBO
-
-
100
nA
Emitter Cutoff Current
at VBE=6V
IEBO
-
-
100
nA
Collector Saturation Voltage
at IC=600mA, IB=20mA
VCE(sat)
-
-
0.55
V
Base Saturation Voltage
at IC=600mA, IB=20mA
VBE(sat)
-
0.98
1.2
V
Base Emitter Voltage
at IC=10mA, VCE=1V
VBE
-
0.66
1.0
V
Gain Bandwidth Product
at VCE=10V, IC=50mA
fT
100
-
-
MHz
Collector Base Capacitance
at VCB=10V, f=1MHz
COB
-
-
9
pF