Philips BFS540 Datasheet
DISCRETE SEMICONDUCTORS
DATA SH EET
BFS540
NPN 9 GHz wideband transistor
Product specification
File under Discrete Semiconductors, SC14
November 1992
Philips Semiconductors Product specification
NPN 9 GHz wideband transistor BFS540
FEATURES
• High power gain
• Low noise figure
• High transition frequency
• Gold metallization ensures
excellent reliability
PINNING
PIN DESCRIPTION
Code: N4
1 base
2 emitter
3 collector
handbook, 2 columns
3
• SOT323 envelope.
12
DESCRIPTION
Top view
MBC870
NPN transistor in a plastic SOT323
envelope.
Fig.1 SOT323.
It is intended for RF wideband
amplifier applications such as satellite
TV systems and RF portable
communication equipment with signal
frequencies up to 2 GHz.
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
CBO
V
CEO
I
C
P
tot
h
FE
f
T
G
UM
F noise figure I
collector-base voltage open emitter −− 20 V
collector-emitter voltage open base −− 15 V
DC collector current −− 120 mA
total power dissipation up to Ts=80°C; note 1 −− 500 mW
DC current gain IC= 40 mA; VCE= 8 V; Tj=25°C 60 120 250
transition frequency IC= 40 mA; VCE= 8 V; f = 1 GHz;
T
=25°C
amb
maximum unilateral power gain IC= 40 mA; VCE= 8 V; f = 900 MHz;
T
=25°C
amb
= 10 mA; VCE= 8 V; f = 900 MHz;
C
T
=25°C
amb
− 9 − GHz
− 14 − dB
− 1.3 1.7 dB
LIMITING VALUES
In accordance with the Absolute Maximum System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
V
V
I
P
T
T
CBO
CES
EBO
C
tot
stg
j
collector-base voltage open emitter − 20 V
collector-emitter voltage RBE=0 − 15 V
emitter-base voltage open collector − 2.5 V
DC collector current − 120 mA
total power dissipation up to Ts=80°C; note 1 − 500 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
November 1992 2
Philips Semiconductors Product specification
NPN 9 GHz wideband transistor BFS540
THERMAL RESISTANCE
SYMBOL PARAMETER CONDITIONS
R
th j-s
thermal resistance from junction to
up to Ts=80°C; note 1 190 K/W
THERMAL
RESISTANCE
soldering point
Note
is the temperature at the soldering point of the collector tab.
1. T
s
CHARACTERISTICS
T
=25°C, unless otherwise specified.
j
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
I
CBO
h
FE
C
e
C
c
C
re
f
T
G
UM
2
S
21
F noise figure Γ
P
L1
collector cut-off current IE= 0; VCE=8 V −−50 nA
DC current gain IC= 40 mA; VCE= 8 V 60 120 250
emitter capacitance IC=ic= 0; VEB= 0.5 V; f = 1 MHz − 2 − pF
collector capacitance IE=ie= 0; VCB= 8 V; f = 1 MHz − 0.9 − pF
feedback capacitance IC= 0; VCB= 8 V; f = 1 MHz − 0.6 − pF
transition frequency IC= 40 mA; VCE= 8 V; f = 1 GHz;
T
=25°C
amb
maximum unilateral power gain
(note 1)
IC= 40 mA; VCE= 8 V; f = 900 MHz;
T
=25°C
amb
I
= 40 mA; VCE= 8 V; f = 2 GHz;
C
T
=25°C
amb
insertion power gain IC= 40 mA; VCE= 8 V; f = 900 MHz;
T
=25°C
amb
output power at 1 dB gain
compression
= Γ
s
f = 900 MHz; T
Γ
= Γ
s
f = 900 MHz; T
Γ
= Γ
s
f = 2 GHz; T
Ic= 40 mA; VCE= 8 V; RL=50Ω;
f = 900 MHz; T
= 10 mA; VCE=8 V;
opt;IC
amb
= 40 mA; VCE=8 V;
opt;IC
amb
= 10 mA; VCE=8 V;
opt;IC
=25°C
amb
amb
=25°C
=25°C
=25°C
− 9 − GHz
− 14 − dB
− 8 − dB
12 13 − dB
− 1.3 1.8 dB
− 1.9 2.4 dB
− 2.1 − dB
− 21 − dBm
ITO third order intercept point note 2 − 34 − dBm
Notes
1. G
2. I
is the maximum unilateral power gain, assuming S12is zero and
UM
G
UM
= 40 mA; VCE= 8 V; RL=50Ω; f = 900 MHz; T
C
--------------------------------------------------------------
10 log
1S
–
fp= 900 MHz; fq= 902 MHz; measured at f
2
S
21
2
1S
11
2
–
22
dB.=
=25°C;
amb
= 898 MHz and at f
(2p−q)
November 1992 3
(2q−p)
= 904 MHz.
Philips Semiconductors Product specification
NPN 9 GHz wideband transistor BFS540
400
handbook, halfpage
P
tot
(mW)
300
200
100
0
0 50 100 200
VCE≤ 10 V.
150
Fig.2 Power derating curve.
MRC008 - 1
o
Ts(
C)
200
handbook, halfpage
h
FE
150
100
50
0
−2
10
VCE= 8 V; Tj=25°C.
−1
10
11010
MRC010
I
(mA)
C
Fig.3 DC current gain as a function of collector
current.
2
1
handbook, halfpage
C
re
(pF)
0.8
0.6
0.4
0.2
0
024681012
V (V)
IC= 0; f= 1 MHz.
Fig.4 Feedback capacitance as a function of
collector-base voltage.
MRC001
CB
12
handbook, halfpage
f
T
(GHz)
V = 8 V
8
4
0
11010
f = 1 GHz; T
amb
=25°C.
CE
4 V
IC(mA)
Fig.5 Transition frequency as a function of
collector current.
MRC002
2
November 1992 4
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