BFR91 Datasheet, PDF (5/8 Pages) Vishay Siliconix – Silicon NPN Planar RF Transistor

BFR91
Vishay Telefunken
Typical Characteristics (T_amb = 25_C unless otherwise specified)
400
350
300
250
200
150
100
50
0
0 20 40 60 80 100 120 140 160
12845
T_amb – Ambient Temperature ( °C )
Figure 1. Total Power Dissipation vs.
Ambient Temperature
1.0
0.8
0.6
0.4
0.2
0
0
12893
f=1MHz
4
8
12
16
20
V_CB – Collector Base Voltage ( V )
Figure 3. Collector Base Capacitance vs.
Collector Base Voltage
6000
5000
4000
3000
2000
1000
V_CE=5V
f=500MHz
0
0
12892
10
20
30
40
50
I_C – Collector Current ( mA )
Figure 2. Transition Frequency vs. Collector Current
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
12894
V_CE=5V
W f=500MHz
Z_S=50
5 10 15 20 25 30
I_C – Collector Current ( mA )
Figure 4. Noise Figure vs. Collector Current
Document Number 85030
Rev. 3, 20-Jan-99
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