Jan-04-2002
3
BFR949F
Electrical Characteristics
Parameter Symbol Values Unit
min. typ. max.
AC Characteristics
Transition frequency
IC = 15 mA, VCE = 6 V, f = 1 GHz
fT7 9 - GHz
Collector-base capacitance
VCB = 10 V, f = 1 MHz, VBE = vbe = 0
Ccb - 0.3 - pF
Collector emitter capacitance
VCE = 10 V, f = 1 MHz, VBE = vbe = 0
Cce - 0.2 -
Emitter-base capacitance
VEB = 0.5 V, f = 1 MHz, VCB = vcb = 0
Ceb - 0.7 -
Noise figure
IC = 5 mA, VCE = 6 V, ZS = ZSopt ,
f = 1 GHz
IC = 3 mA, VCE = 8 V, ZS = ZSopt ,
f = 1.8 GHz
F
-
-
1
1.5
2.5
-
dB
Power gain1)
IC = 10 mA, VCE = 8 V, ZS = ZSopt ,
ZL = ZLopt, f = 900 MHz
Gms - 21 - -
Power gain, maximum available1)
IC = 10 mA, VCE = 8 V, ZS = ZSopt ,
ZL = ZLopt , f = 1.8 GHz
Gma - 15.5 - dB
Transducer gain
IC = 15 mA, VCE = 6 V, ZS = ZL = 50
,
f = 1 GHz
IC = 10 mA, VCE = 8 V, ZS = ZL = 50
,
f = 1.8 GHz
|S21e|2
-
-
17
12
-
-
dB
1Gma = |S21 / S12| (k-(k²-1)1/2), Gms = |S21 / S12|