Semiconductor Group
1
Jan-21-1997
BFP 181R
NPN Silicon RF Transistor
For low noise, high-gain broadband amplifiers at
collector currents from 0.5mA to 12mA
f
T
= 8GHz
F = 1.45dB at 900MHz
ESD: Electrostatic discharge sensitive device, observe handling precaution!
Type
Marking Ordering Code
Pin Configuration
Package
BFP 181R
RFs
Q62702-F1685
1 = E
2 = C
3 = E
4 = B
SOT-143R
Maximum Ratings
Parameter
Symbol
Values
Unit
Collector-emitter voltage
V
CEO
12
V
Collector-emitter voltage
V
CES
20
Collector-base voltage
V
CBO
20
Emitter-base voltage
V
EBO
2
Collector current
I
C
20
mA
Base current
I
B
2
Total power dissipation
T
S
75 C
P
tot
175
mW
Junction temperature
T
j
150
C
Ambient temperature
T
A
- 65 ... + 150
Storage temperature
T
stg
- 65 ... + 150
Thermal Resistance
Junction - soldering point
1)
R
thJS
430
K/W
1)
T
S
is measured on the collector lead at the soldering point to the pcb.
Semiconductor Group
2
Jan-21-1997
BFP 181R
Electrical Characteristics at
T
A
= 25C, unless otherwise specified.
Parameter
Symbol
Values
Unit
min.
typ.
max.
DC Characteristics
Collector-emitter breakdown voltage
I
C
= 1 mA,
I
B
= 0
V
(BR)CEO
12
-
-
V
Collector-emitter cutoff current
V
CE
= 20 V,
V
BE
= 0
I
CES
-
-
100
A
Collector-base cutoff current
V
CB
= 10 V,
I
E
= 0
I
CBO
-
-
100
nA
Emitter-base cutoff current
V
EB
= 1 V,
I
C
= 0
I
EBO
-
-
1
A
DC current gain
I
C
= 5 mA,
V
CE
= 8 V
h
FE
50
100
200
-
Semiconductor Group
3
Jan-21-1997
BFP 181R
Electrical Characteristics at
T
A
= 25C, unless otherwise specified.
Parameter
Symbol
Values
Unit
min.
typ.
max.
AC Characteristics
Transition frequency
I
C
= 10 mA,
V
CE
= 8 V,
f = 500 MHz
f
T
6
8
-
GHz
Collector-base capacitance
V
CB
= 10 V,
f = 1 MHz
C
cb
-
0.21
0.4
pF
Collector-emitter capacitance
V
CE
= 10 V,
f = 1 MHz
C
ce
-
0.27
-
Emitter-base capacitance
V
EB
= 0.5 V,
f = 1 MHz
C
eb
-
0.32
-
Noise figure
I
C
= 2 mA,
V
CE
= 8 V,
Z
S
=
Z
Sopt
f = 900 MHz
f = 1.8 GHz
F
-
-
1.8
1.45
-
-
dB
Power gain
1)
I
C
= 5 mA,
V
CE
= 8 V,
Z
S
=
Z
Sopt
Z
L
=
Z
Lopt
f = 900 MHz
f = 1.8 GHz
G
ms
-
-
16.5
20
-
-
Transducer gain
I
C
= 5 mA,
V
CE
= 8 V,
Z
S
=
Z
L
= 50
f = 900 MHz
f = 1.8 GHz
|
S
21e
|
2
-
-
11.5
16.5
-
-
1)
G
ms
= |
S
21
/
S
12
|
Semiconductor Group
4
Jan-21-1997
BFP 181R
SPICE Parameters (Gummel-Poon Model, Berkeley-SPICE 2G.6 Syntax) :
Transistor Chip Data
IS =
0.0010519 fA
VAF =
22.403
V
NE =
1.7631
-
VAR =
5.1127
V
NC =
1.6528
-
RBM =
6.6315
CJE =
1.8168
fF
TF =
17.028
ps
ITF =
1.0549
mA
VJC =
1.1633
V
TR =
2.7449
ns
MJS =
0
-
XTI =
3
-
BF =
96.461
-
IKF =
0.12146
A
BR =
16.504
-
IKR =
0.24951
A
RB =
9.9037
RE =
2.1372
VJE =
0.73155
V
XTF =
0.33814
-
PTF =
0
deg
MJC =
0.30013
-
CJS =
0
fF
XTB =
0
-
FC =
0.99768
-
NF =
0.90617
-
ISE =
12.603
fA
NR =
0.87757
-
ISC =
0.01195
fA
IRB =
0.69278
mA
RC =
2.2171
MJE =
0.43619
-
VTF =
0.12571
V
CJC =
319.69
fF
XCJC =
0.082903
-
VJS =
0.75
V
EG =
1.11
eV
TNOM
300
K
All parameters are ready to use, no scalling is necessary.
Extracted on behalf of SIEMENS Small Signal Semiconductors by:
Institut fr Mobil-und Satellitenfunktechnik (IMST)
1996 SIEMENS AG
Package Equivalent Circuit:
LBI =
0.89
nH
LBO =
0.73
nH
LEI =
0.4
nH
LEO =
0.15
nH
LCI =
0
nH
LCO =
0.42
nH
CBE =
189
fF
CCB =
15
fF
CCE =
187
fF
Valid up to 6 GHz
For examples and ready to use parameters please contact your local Siemens distributor or sales office to
obtain a Siemens CD-ROM or see Internet: http://www.siemens.de/Semiconductor/products/35/35.htm
Semiconductor Group
5
5
BFP 181R
Total power dissipation
P
tot
=
f (T
A
*,
T
S
)
* Package mounted on epoxy
0
20
40
60
80
100
120 C 150
T
A
,T
S
0
20
40
60
80
100
120
140
160
mW
200
P
tot
T
S
T
A
Permissible Pulse Load
R
thJS
=
f (t
p
)
10
-7
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
s
t
p
1
10
2
10
3
10
K/W
R
thJS
D = 0
0.005
0.01
0.02
0.05
0.1
0.2
0.5
Permissible Pulse Load
P
totmax
/
P
totDC
=
f (t
p
)
10
-7
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
s
t
p
0
10
1
10
2
10
-
P
totmax
/
P
totDC
D = 0
0.005
0.01
0.02
0.05
0.1
0.1
0.5
Semiconductor Group
6
Jan-21-1997
BFP 181R
Collector-base capacitance
C
cb
=
f (V
CB
)
V
BE
=
v
be
= 0,
f = 1MHz
0
4
8
12
16
V
22
V
R
0.00
0.04
0.08
0.12
0.16
0.20
0.24
pF
0.32
C
cb
Transition frequency
f
T
=
f (I
C
)
V
CE
= Parameter
0
2
4
6
8
10
12
14 mA 17
I
C
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
GHz
10.0
f
T
10V
8V
5V
3V
2V
1V
0.7V
Power Gain
G
ma
,
G
ms
=
f(I
C
)
f = 0.9GHz
V
CE
= Parameter
0
2
4
6
8
10
12
14
mA
18
I
C
8
10
12
14
16
18
20
dB
24
G
10V
5V
3V
2V
1V
0.7V
Power Gain
G
ma
,
G
ms
=
f(I
C
)
f = 1.8GHz
V
CE
= Parameter
0
2
4
6
8
10
12
14
mA
18
I
C
0
2
4
6
8
10
12
14
dB
18
G
10V
5V
3V
2V
1V
0.7V
Semiconductor Group
7
Jan-21-1997
BFP 181R
Power Gain
G
ma
,
G
ms
=
f(V
CE
):_____
|
S
21
|
2
=
f(V
CE
):---------
f = Parameter
0
2
4
6
8
V
12
V
CE
6
8
10
12
14
16
18
dB
22
G
0.9GHz
1.8GHz
0.9GHz
1.8GHz
I
C
=5mA
Intermodulation Intercept Point
IP
3
=
f(I
C
)
(3rd order, Output,
Z
S
=
Z
L
=50
)
V
CE
= Parameter,
f = 900MHz
0
2
4
6
8
10
12
14
mA
18
I
C
-4
-2
0
2
4
6
8
10
12
14
16
18
dBm
22
IP
3
8V
5V
3V
2V
1V
Power Gain
G
ma
,
G
ms
=
f(f)
V
CE
= Parameter
0.0
0.5
1.0
1.5
2.0
2.5
GHz
3.5
f
4
6
8
10
12
14
16
18
20
22
24
26
28
30
dB
34
G
10V
2V
1V
0.7V
I
C
=5mA
Power Gain |
S
21
|
2
=
f(f)
V
CE
= Parameter
0.0
0.5
1.0
1.5
2.0
2.5
GHz
3.5
f
2
4
6
8
10
12
14
16
18
20
dB
24
S
21
10V
2V
1V
0.7V
I
C
=5mA
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