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BFP420 Datasheet, PDF (6/8 Pages) Siemens Semiconductor Group – NPN Silicon RF Transistor (For high gain low noise amplifiers For oscillators up to 10 GHz)
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BFP 420
Total power dissipation Ptot = f (TA*, TS)
* Package mounted on epoxy
200
mW
160
Ptot
140
120
100
TS
TA
80
60
40
20
0
0
20 40 60 80 100 120 °C 150
TA,TS
Permissible Pulse Load RthJS = f (tp)
Transition frequency fT = f (IC)
f = 2 GHz
VCE = parameter in V
30
GHz
24
fT 22
20
18
16
14
12
10
8
6
4
2
0
0
2 to 4
1.5
1
0.75
0.5
5 10 15 20 25 30 mA 40
IC
Permissible Pulse Load
Ptotmax/PtotDC = f (tp)
10 3
10 1
K/W
RthJS
10 2
0.5
0.2
0.1
0.05
0.02
0.01
0.005
D=0
Pmax
/ PDC
-
D=0
0.005
0.01
0.02
0.05
0.1
0.2
0.5
10
1
10
-7
10 -6
10 -5
10 -4
10 -3
10 -2
s 10 0
tp
SSeemmicioconndduuctcotor rGGrorouupp
66
10
0
10
-7
10 -6
10 -5
10 -4
10 -3
10 -2
s 10 0
tp
Jul1-91948--11919-081
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