Philips Semiconductors
NPN 5 GHz wideband transistor
Product specification
BFR92
handbook, halfpage
390 Ω
L2
680 pF
75 Ω
input
24 V
L3
820 Ω
3.9 kΩ
300 Ω
650 pF
680 pF
75 Ω
L1
output
DUT
16 Ω
MEA446
L2 = L3 = 5 µH Ferroxcube choke, catalogue
number 3122 108 20150.
L1 = 4 turns 0.35 mm copper wire; winding pitch
1 mm; internal diameter 4 mm.
Fig.2 Intermodulation distortion test circuit.
handboo4k,0h0alfpage
Ptot
(mW)
300
MEA425 - 1
200
100
0
0
50
100
150
200
Ts (o C)
Fig.3 Power derating curve.
handboo1k,2h0alfpage
h FE
80
MCD074
40
0
0
10
20 IC (mA) 30
VCE = 10 V; Tj = 25 °C.
Fig.4 DC current gain as a function of collector
current.
handbCoock, h1alfpage
(pF)
0.8
MEA428
0.6
0.4
0.2
0
0
10
V CB (V)
20
IE = ie = 0; f = 1 MHz; Tj = 25 °C.
Fig.5 Collector capacitance as a function of
collector-base voltage.
September 1995
4