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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 2SC458
Characteristics at Tamb=25
OC
Symbol
Min.
Typ.
Max.
Unit
DC Current Gain
at VCE=12V, IC=2mA
Current Gain Group B
C
D
hFE
hFE
hFE
100
160
250
-
-
-
200
320
500
-
-
-
Collector Cutoff Current
at VCB=18V
ICBO
-
-
0.5
μA
Emitter Cutoff Current
at VEB=2V
IEBO
-
-
0.5
μA
Collector Emitter Saturation Voltage
at IC=10mA, IB=1mA
VCE(sat)
-
-
0.2
V
Transition Frequency
at VCE=12V, IC=2mA
fT
-
230
-
MHz
Base Emitter Voltage
at IC=2mA, VCE=12V
VBE
-
0.67
0.75
V
Collector Output Capacitance
at VCB=10V, f=1MHz
COB
-
1.8
3.5
pF
Collector Base Breakdown Voltage
at IC=10μA
VCBO
30
-
-
V
Collector Emitter Breakdown Voltage
at IC=1mA
VCEO
30
-
-
V
Emitter Base Breakdown Voltage
at IC=10μA
VEBO
5
-
-
V
Noise Figure
at VCE=6V, IC=0.1mA, f=1kHz, Rg=500Ω
NF
-
4
10
dB
Small signal input impedance
at VCE=5V, IC=0.1mA,f=270Hz
hie
hie
hie
hie
-
-
-
-
16.5
70
130
11
-
-
-
-
k Ω
X10
-6
-
μS
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