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BFR280 Datasheet(PDF) 3 Page - Siemens Semiconductor Group

Part No. BFR280
Description  NPN Silicon RF Transistor (For low noise, low-power amplifiers in mobile communication systems)
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Maker  SIEMENS [Siemens Semiconductor Group]
Homepage  http://www.siemens.com/
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BFR280 Datasheet(HTML) 3 Page - Siemens Semiconductor Group

   
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Semiconductor Group
3
Dec-11-1996
BFR 280
Electrical Characteristics at
TA = 25°C, unless otherwise specified.
Parameter
Symbol
Values
Unit
min.
typ.
max.
AC Characteristics
Transition frequency
IC = 6 mA, VCE = 5 V, f = 500 MHz
fT
5
7.5
-
GHz
Collector-base capacitance
VCB = 5 V, f = 1 MHz
Ccb
-
0.27
0.45
pF
Collector-emitter capacitance
VCE = 5 V, f = 1 MHz
Cce
-
0.18
-
Emitter-base capacitance
VEB = 0.5 V, f = 1 MHz
Ceb
-
0.22
-
Noise figure
IC = 1.5 mA, VCE = 5 V, ZS = ZSopt
f = 900 MHz
f = 1.8 GHz
F
-
-
2
1.5
-
-
dB
Power gain
1)
IC = 3 mA, VCE = 5 V, ZS = ZSopt
ZL = ZLopt
f = 900 MHz
f = 1.8 GHz
Gms
-
-
11.5
17
-
-
Transducer gain
IC = 3 mA, VCE = 5 V, ZS =ZL= 50 Ω
f = 900 MHz
f = 1.8 GHz
|
S21e|2
-
-
8
13
-
-
1)
Gms = |S21/S12|


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