Philips (Now NXP) BFR92 Schematic [ru]

DISCRETE SEMICONDUCTORS
DATA SH EET
BFR92
NPN 5 GHz wideband transistor
Product specification File under Discrete Semiconductors, SC14
September 1995
NPN 5 GHz wideband transistor BFR92

DESCRIPTION

NPN transistor in a plastic SOT23 envelope primarily intended for use in RF wideband amplifiers and oscillators. The transistor features low intermodulation distortion and high power gain; due to its very high transition frequency, it also has excellent wideband properties and low noise up to high frequencies.

PINNING

PIN DESCRIPTION
Code: P1p 1 base 2 emitter 3 collector
page
3
12
Top view
MSB003
PNP complement is BFT92.
Fig.1 SOT23.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS TYP. MAX. UNIT
V V I P f
CBO CEO
C
tot
T
collector-base voltage open emitter 20 V collector-emitter voltage open base 15 V DC collector current 25 mA total power dissipation up to Ts=95°C; note 1 300 mW transition frequency IC= 14 mA; VCE= 10 V; f = 500 MHz;
5 GHz
Tj=25°C
C
re
G
UM
F noise figure I
V
o
feedback capacitance IC= 2 mA; VCE= 10 V; f = 1 MHz 0.4 pF maximum unilateral power gain IC= 14 mA; VCE= 10 V; f = 500 MHz;
T
=25°C
amb
= 2 mA; VCE= 10 V; f = 500 MHz;
C
T
=25°C; Zs= opt.
amb
output voltage dim= 60 dB; IC= 14 mA; VCE= 10 V;
RL=75Ω; T f
= 493.25 MHz
(p+qr)
amb
=25°C;
18 dB
2.4 dB
150 mV

LIMITING VALUES

In accordance with the Absolute Maximum System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
CBO
V
CEO
V
EBO
I
C
P
tot
T
stg
T
j
collector-base voltage open emitter 20 V collector-emitter voltage open base 15 V emitter-base voltage open collector 2V DC collector current 25 mA total power dissipation up to Ts=95°C; note 1 300 mW storage temperature 65 150 °C junction temperature 175 °C
Note
is the temperature at the soldering point of the collector tab.
1. T
s
September 1995 2
NPN 5 GHz wideband transistor BFR92

THERMAL RESISTANCE

SYMBOL PARAMETER CONDITIONS THERMAL RESISTANCE
R
th j-s
thermal resistance from junction to soldering point
Note
is the temperature at the soldering point of the collector tab.
1. T
s

CHARACTERISTICS

=25°C unless otherwise specified.
T
j
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
I
CBO
h
FE
f
T
C C C
G
c e re
UM
collector cut-off current IE= 0; VCB= 10 V −−50 nA DC current gain IC= 14 mA; VCE= 10 V 40 90 transition frequency IC= 14 mA; VCE= 10 V; f = 500 MHz 5 GHz collector capacitance IE=ie= 0; VCB= 10 V; f = 1 MHz 0.75 pF emitter capacitance IC=ic= 0; VEB= 0.5 V; f = 1 MHz 0.8 pF feedback capacitance IC= 2 mA; VCE= 10 V; f = 1 MHz;
maximum unilateral power gain (note 1)
F noise figure (see Fig.2 and note 2) I
V
o
output voltage note 3 150 mV
up to Ts=95°C; note 1 260 K/W
0.4 pF
T
=25°C
amb
IC= 14 mA; VCE= 10 V; f = 500 MHz; T
= 2 mA; VCE= 10 V; f = 500 MHz;
C
T
=25°C; Zs= opt.
amb
amb
=25°C
18 dB
2.4 dB
Notes
1. G
is the maximum unilateral power gain, assuming S12is zero and
UM
2. Crystal mounted in a SOT37 envelope (BFR90).
3. dim= 60 dB (DIN 45004B); IC= 14 mA; VCE= 10 V; RL=75Ω; T Vp=Vo at dim= 60 dB; fp= 495.25 MHz; Vq=Vo−6 dB; fq= 503.25 MHz; Vr=Vo−6 dB; fr= 505.25 MHz; measured at f
) = 493.25 MHz.
(p+qr
amb
=
G
UM
=25°C;
--------------------------------------------------------------
10 log

1
S

11
2
S
21
2

1
S

˙
dB
2
22
September 1995 3
NPN 5 GHz wideband transistor BFR92
handbook, halfpage
L3
300
3.9 k
680 pF
390
L2
680 pF
75 input
L2=L3=5µH Ferroxcube choke, catalogue number 3122 108 20150.
L1 =4 turns 0.35 mm copper wire; winding pitch 1 mm; internal diameter 4 mm.
L1
Fig.2 Intermodulation distortion test circuit.
150
MEA425 - 1
o
Ts(
C)
400
handbook, halfpage
P
24 V
820
650 pF
DUT
16
75
output
MEA446
tot
(mW)
300
200
100
0
0 50 100 200
Fig.3 Power derating curve.
I (mA)
C
MCD074
120
handbook, halfpage
h
FE
80
40
0
0102030
VCE= 10 V; Tj=25°C.
Fig.4 DC current gain as a function of collector
current.
September 1995 4
handbook, halfpage
1
C
c
(pF)
0.8
0.6
0.4
0.2
0
01020
IE=ie= 0; f = 1 MHz; Tj=25°C.
(V)
V
CB
Fig.5 Collector capacitance as a function of
collector-base voltage.
MEA428
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