Infineon-Technologies-BFP-843F-H6327

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Infineon-Technologies-BFP-843F-H6327
BFP843F  
SiGe:C NPN RF bipolar transistor  
Product description  
The BFP843F is a robust low noise broadband pre-matched RF heterojunction bipolar  
transistor (HBT).  
Feature list  
•
Unique combination of high end RF performance and robustness: 20 dBm maximum RF input power,  
1.5 kV HBM ESD hardness  
•
High transition frequency to enable best in class noise performance at high frequencies:  
NF

min

= 1.1
 
dB at 5.5 GHz, 1.8 V, 8 mA  
•
•
•
High gain
G

ma

= 18 dB at 5.5 GHz, 1.8 V, 15 mA  
OIP

3

= 19.5 dBm at 5.5 GHz, 1.8 V, 15 mA  
Suitable for low voltage applications e.g.
V

CC

= 1.2 V and 1.8 V (2.85 V, 3.3 V, 3.6 V require a corresponding  
collector resistor)  
Product validation  
Qualified for industrial applications according to the relevant tests of JEDEC47/20/22.  
Potential applications  
•
•
WLAN, WiMAX and UWB  
Satellite communication systems: satellite radio (SDARs, DAB) and navigation systems (e.g. GPS, GLONASS,  
BeiDou, Galileo)  
Device information  
Table 1  
Part information  
Product name / Ordering code  
Package  
Pin configuration  
Marking  
Pieces / Reel  
BFP843F / BFP843FH6327XTSA1  
TSFP-4-1  
1 = B
 
2 = E
 
3 = C
 
4 = E
 
T2s  
3000  
Attention
:
ESD (Electrostatic discharge) sensitive device, observe handling precautions  
Datasheet  
Please read the Important Notice and Warnings at the end of this document  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Table of contents  
Table of contents  
Product description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
1  
Feature list
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Product validation
 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
1  
Potential applications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
1  
Device information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
1  
Table of contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Absolute maximum ratings
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3  
Thermal characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
1
2
3
Electrical characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
5  
General AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Frequency dependent AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
6  
Characteristic DC diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Characteristic AC diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
3.1  
3.2  
3.3  
3.4  
3.5  
4
Package information TSFP-4-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
19  
Revision history
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20  
Disclaimer
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
21  
Datasheet  
2
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Absolute maximum ratings  
1
Absolute maximum ratings  
Table 2  
Absolute maximum ratings at
T

A

= 25 °C (unless otherwise specified)  
Parameter  
Symbol  
Values  
Min. Max.  
2.25  
Unit Note
 
or test condition  
Collector emitter voltage  
Collector emitter voltage

1)  

V

CEO  

–
V
Open base  
2.0  
T

A

= -55 °C, open base  
E-B short circuited  
V

CES  

2.25  
2.0  
T

A

= -55 °C,  
E-B short circuited  
Collector base voltage

2)  

V

CBO  

2.9  
2.6  
5
Open emitter  
T

A

= -55 °C, open emitter  
Base current  
I

B  

-5  
–
mA  
–
Collector current  
RF input power  
ESD stress pulse  
I

C  

55  
20  
1.5  
P

RFin  

V

ESD  

dBm  
kV  
-1.5  
–
HBM, all pins, acc. to  
JESD22-A114  
Total power dissipation

3)  

Junction temperature  
Storage temperature  
P

tot  

T

J  

125  
150  
mW
T

S

≤ 100 °C  
°C  
–
T

Stg  

-55  
Attention
:
Stresses above the max. values listed here may cause permanent damage to the device.  
Exposure to absolute maximum rating conditions for extended periods may
affect
device  
reliability. Exceeding only one of these values may cause irreversible damage to the integrated  
circuit.  
1
V

CES

is identical to
V

CEO

due to design.  
V

CBO

is similar to
V

CEO

due to design.  
T

S

is the soldering point temperature.
T

S

is measured on the emitter lead at the soldering point of the PCB.  
2
3
Datasheet  
3
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Thermal characteristics  
2
Thermal characteristics  
Table 3  
Thermal resistance  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Junction – soldering point  
R

thJS  

–
395  
–
K/W  
–
130  
120  
110  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
0
25  
50  
75  
T

S

[°C]  
100  
125  
150  
Figure 1  
Total power dissipation
P

tot

= f(
T

S

)  
Datasheet  
4
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
3
Electrical characteristics  
3.1  
DC characteristics  
Table 4  
DC characteristics at
T

A

= 25 °C  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Collector emitter breakdown voltage  
Collector emitter leakage current  
Collector base leakage current  
Emitter base leakage current  
DC current gain  
V

(BR)CEO

2.25 2.6  
–
V
I

C

= 1 mA,
I

B

= 0,  
open base  
I

CES  

I

CBO  

I

EBO  

h

FE  

–
–
400

1)

nA  
400

1)  

V

CE

= 1.5 V,
V

BE

= 0,  
E-B short circuited  
V

CB

= 1.5 V,
I

E

= 0,  
open emitter  
10

1)

μA  
450  
V

EB

= 0.5 V,
I

C

= 0,  
open collector  
150  
260  
V

CE

= 1.8 V,
I

C

= 15 mA,  
pulse measured  
3.2  
General AC characteristics  
Table 5  
General AC characteristics at
T

A

= 25 °C  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Collector base capacitance

2)  

C

CB  

–
5.23  
0.06  
–
pF  
f
= 1 MHz  
f
= 1 GHz  
V

CB

= 1.8 V,
V

BE

= 0,  
emitter grounded  
Collector emitter capacitance  
Emitter base capacitance  
C

CE  

0.46  
0.7  
f
= 1 MHz,  
V

CE

= 1.8 V,
V

BE

= 0,  
base grounded  
C

EB  

f
= 1 MHz,  
V

EB

= 0.4 V,
V

CB

= 0,  
collector grounded  
1
Maximum values not limited by the device but by the short cycle time of the 100% test  
Including integrated feedback capacitance  
2
Datasheet  
5
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
3.3  
Frequency dependent AC characteristics  
Measurement setup is a test fixture with Bias-T’s in a 50 Ω system,
T

A

= 25 °C.  
VC  
T
o
p View  
Bias
–
T  
OUT  
C
E
E
VB  
B
(Pin 1)  
Bias-T  
IN  
Figure 2  
Testing circuit  
AC characteristics,
V

CE

= 1.8 V,
f
= 450 MHz  
Table 6  
Parameter  
Symbol  
Values  
Min. Typ. Max.  
Unit Note
 
or test condition  
Power gain  
–
–
dB  
•
•
Maximum power gain  
Transducer gain  
G

ma  

|
S

21

|

2  

25  
24.5  
I

C

= 15 mA  
Noise figure  
•
•
Minimum noise figure  
Associated gain  
NF

min  

G

ass  

0.8  
22.5  
I

C

= 8 mA  
Linearity  
dBm  
•
•
3rd order intercept point at output  
1 dB gain compression point at output
 
OP

1dB  

OIP

3  

24.5  
7
Z

S

=
Z

L

= 50 Ω,
I

C

= 15 mA  
Datasheet  
6
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
Table 7  
AC characteristics,
V

CE

= 1.8 V,
f
= 900 MHz  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Power gain  
–
–
dB  
•
•
Maximum power gain  
Transducer gain  
G

ma  

|
S

21

|

2  

24.5  
24  
I

C

= 15 mA  
Noise figure  
•
•
Minimum noise figure  
Associated gain  
NF

min  

G

ass  

0.8  
22  
I

C

= 8 mA  
Linearity  
dBm  
•
•
3rd order intercept point at output  
1 dB gain compression point at output
 
OP

1dB  

OIP

3  

24  
8
Z

S

=
Z

L

= 50 Ω,
I

C

= 15 mA  
Table 8  
AC characteristics,
V

CE

= 1.8 V,
f
= 1.5 GHz  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Power gain  
–
–
dB  
•
•
Maximum power gain  
Transducer gain  
G

ma  

|
S

21

|

2  

24  
23  
I

C

= 15 mA  
Noise figure  
•
•
Minimum noise figure  
Associated gain  
NF

min  

G

ass  

0.85  
21  
I

C

= 8 mA  
Linearity  
dBm  
•
•
3rd order intercept point at output  
1 dB gain compression point at output
 
OP

1dB  

OIP

3  

23  
7
Z

S

=
Z

L

= 50 Ω,
I

C

= 15 mA  
Table 9  
AC characteristics,
V

CE

= 1.8 V,
f
= 1.9 GHz  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Power gain  
–
–
dB  
•
•
Maximum power gain  
Transducer gain  
G

ma  

|
S

21

|

2  

23.5  
22.5  
I

C

= 15 mA  
Noise figure  
•
•
Minimum noise figure  
Associated gain  
NF

min  

G

ass  

0.9  
20.5  
I

C

= 8 mA  
Linearity  
dBm  
•
•
3rd order intercept point at output  
1 dB gain compression point at output
 
OP

1dB  

OIP

3  

23.5  
7.5  
Z

S

=
Z

L

= 50 Ω,
I

C

= 15 mA  
Datasheet  
7
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
Table 10  
AC characteristics,
V

CE

= 1.8 V,
f
= 2.4 GHz  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Power gain  
–
–
dB  
•
•
Maximum power gain  
Transducer gain  
G

ma  

|
S

21

|

2  

22.5  
21.5  
I

C

= 15 mA  
Noise figure  
•
•
Minimum noise figure  
Associated gain  
NF

min  

G

ass  

0.95  
20  
I

C

= 8 mA  
Linearity  
dBm  
•
•
3rd order intercept point at output  
1 dB gain compression point at output
 
OP

1dB  

OIP

3  

22.5  
6.5  
Z

S

=
Z

L

= 50 Ω,
I

C

= 15 mA  
Table 11  
AC characteristics,
V

CE

= 1.8 V,
f
= 3.5 GHz  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Power gain  
–
–
dB  
•
•
Maximum power gain  
Transducer gain  
G

ma  

|
S

21

|

2  

21  
19.5  
I

C

= 15 mA  
Noise figure  
•
•
Minimum noise figure  
Associated gain  
NF

min  

G

ass  

1.0  
18  
I

C

= 8 mA  
Linearity  
dBm  
•
•
3rd order intercept point at output  
1 dB gain compression point at output
 
OP

1dB  

OIP

3  

22  
6
Z

S

=
Z

L

= 50 Ω,
I

C

= 15 mA  
Table 12  
AC characteristics,
V

CE

= 1.8 V,
f
= 5.5 GHz  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Power gain  
–
–
dB  
•
•
Maximum power gain  
Transducer gain  
G

ma  

|
S

21

|

2  

18  
16.5  
I

C

= 15 mA  
Noise figure  
•
•
Minimum noise figure  
Associated gain  
NF

min  

G

ass  

1.1  
15.5  
I

C

= 8 mA  
Linearity  
dBm  
•
•
3rd order intercept point at output  
1 dB gain compression point at output
 
OP

1dB  

OIP

3  

19.5  
4.5  
Z

S

=
Z

L

= 50 Ω,
I

C

= 15 mA  
Datasheet  
8
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
Table 13  
AC characteristics,
V

CE

= 1.8 V,
f
= 10 GHz  
Parameter  
Symbol  
Values  
Unit Note
 
or test condition  
Min. Typ. Max.  
Power gain  
–
–
dB  
•
•
Maximum power gain  
Transducer gain  
G

ma  

|
S

21

|

2  

13.5  
10  
I

C

= 15 mA  
Noise figure  
•
•
Minimum noise figure  
Associated gain  
NF

min  

G

ass  

1.7  
10  
I

C

= 8 mA  
Linearity  
dBm  
•
•
3rd order intercept point at output  
1 dB gain compression point at output
 
OP

1dB  

OIP

3  

16.5  
0.5  
Z

S

=
Z

L

= 50 Ω,
I

C

= 15 mA  
Note:  
G

ms

= IS

21

/ S

12

I for k < 1; G

ma

= IS

21

/ S

12

I(k-(k

2

-1)

1/2

) for k > 1. In order to get the NF

min

values, stated in  
this chapter the test fixture losses have been subtracted from all measured results. OIP

3

value  
depends on termination of all intermodulation frequency components. Termination used for this  
measurement is 50
Ω
from 0.2 MHz to 12 GHz.  
Datasheet  
9
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
3.4  
Characteristic DC diagrams  
22  
20  
18  
16  
14  
12  
10  
8
80µA  
70µA  
60µA  
50µA  
40µA  
30µA  
20µA  
6
4
10µA  
2
0
0
0.5  
1
1.5  
2
2.5  
V

CE

[V]  
Figure 3  
Collector current vs. collector emitter voltage
I

C

= f(
V

CE

),
I

B

= parameter  
10

3  

10

2  

10

−
2  

10

−
1  

10

0  

10

1  

10

2  

I

c

[mA]  
Figure 4  
DC current gain
h

FE

= f(
I

C

),
V

CE

= 1.8 V  
Datasheet  
10  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
10

2  

10

1  

10

0  

10

−
1  

10

−
2  

10

−
3  

10

−
4  

10

−
5  

0.5  
0.55  
0.6  
0.65  
0.7  
0.75  
0.8  
0.85  
0.9  
V

BE

[V]  
Figure 5  
Collector current vs. base emitter forward voltage
I

C

= f(
V

BE

),
V

CE

= 1.8 V  
10

0  

10

−
1  

10

−
2  

10

−
3  

10

−
4  

10

−
5  

10

−
6  

10

−
7  

0.5  
0.55  
0.6  
0.65  
0.7  
0.75  
0.8  
0.85  
0.9  
V

BE

[V]  
Figure 6  
Base current vs. base emitter forward voltage
I

B

= f(
V

BE

),
V

CE

= 1.8 V  
Datasheet  
11  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
10

−
6  

10

−
7  

10

−
8  

10

−
9  

10

−
10  

10

−
11  

0.3  
0.35  
0.4  
0.45  
0.5  
0.55  
0.6  
0.65  
0.7  
V

EB

[V]  
Figure 7  
Base current vs. base emitter reverse voltage
I

B

= f(
V

EB

),
V

CE

= 1.8 V  
Datasheet  
12  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
3.5  
Characteristic AC diagrams  
24  
22  
20  
18  
16  
14  
12  
10  
8
1.5
V
,
2
400MHz  
1.8
V
,
2
400MHz  
1.5
V
,
5
500MHz  
1.8
V
,
5
500MHz  
6
4
2
0
0
5
10  
15  
20  
25  
30  
35  
I

C

[mA]  
Figure 8  
3rd order intercept point at output
OIP

3

= f(
I

C

),
Z

S

=
Z

L

= 50 Ω,
V

CE

,
f
= parameters  
35  
30  
25  
20  
15  
10  
20  
18  
19  
19  
18  
12  
17  
16  
15  
14  
17  
16  
15  
16  
15  
14  
1
14  
13  
13  
12  
13  
12  
1.2  
5
1.4  
1.6  
1.8  
2
V

CE

[V]  
Figure 9  
3rd order intercept point at output
OIP

3

[dBm] = f(
I

C

,
V

CE

),
Z

S

=
Z

L

= 50 Ω,
f
= 5.5 GHz  
Datasheet  
13  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
35  
30  
25  
20  
15  
4
3
2
1
0
10  
5
0
−
1  
−
1  
−
2  
−
2  
−
3  
−
5  
−
2  
−
3  
−
3  
−
4  
−
4  
−
5  
−
4  
−
5  
1
1.2  
1.4  
1.6  
1.8  
2
V

CE

[V]  
Figure 10  
Compression point at output
OP

1dB

[dBm] = f(
I

C

,
V

CE

),
Z

S

=
Z

L

= 50 Ω,
f
= 5.5 GHz  
26  
24  
22  
G

ma  

20  
18  
|S

21

|

2  

16  
14  
12  
10  
8
6
4
2
0
0
1
2
3
4
5
6
7
8
9
10 11 12  
f [GHz]  
Figure 11  
Gain
G

ma

,
G

ms

, I
S

21

I

2

= f(
f
),
V

CE

= 1.8 V,
I

C

= 15 mA  
Datasheet  
14  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
28  
26  
24  
22  
20  
18  
16  
14  
12  
10  
8
0.45GHz  
0.90GHz  
1.50GHz  
1.90GHz  
2.40GHz  
3.50GHz  
5.50GHz  
10.00GHz  
12.00GHz  
6
4
2
0
0
5
10 15 20 25 30 35 40 45 50 55 60 65 70  
I

C

[mA]  
Figure 12  
Maximum power gain
G

max

= f(
I

C

),
V

CE

= 1.8 V,
f
= parameter in GHz  
28  
26  
0.45GHz  
0.90GHz  
24  
22  
20  
18  
16  
14  
12  
10  
1.50GHz  
1.90GHz  
2.40GHz  
3.50GHz  
5.50GHz  
10.00GHz  
12.00GHz  
0
0.5  
1
1.5  
2
2.5  
V

CE

[V]  
Figure 13  
Maximum power gain
G

max

= f(
V

CE

),
I

C

= 15 mA,
f
= parameter in GHz  
Datasheet  
15  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
1
1.5  
0.5  
2
0.4  
12.0  
11.0  
3
12.0  
11.0  
0.3  
10.0  
9.0  
4
10.0  
9.0  
8.0  
0.2  
5
0.03 to 12 GHz  
8.0  
0.1  
10  
7.0  
6.0  
5.0  
7.0  
0.1 0.2
 
0.3 0.4
 
0.5  
1
1.0  
1.5  
2
3
4 5  
4.0  
0
3.0  
6.0  
5.0  
2.0  
−
0.1  
−
10  
1.0  
0.03  
4.0  
2.0  
3.0  
0.03  
−
0.2  
−
5  
−
4  
−
0.3  
−
3  
−
0.4  
−
0.5  
−
2  
−
1.5  
8.0mA  
15mA  
−
1  
Figure 14  
Input reflection
coefficient
S

11

= f(
f
),
V

CE

= 1.8 V,
I

C

= 8 / 15 mA  
1
1.5  
0.5  
2
0.4  
3
0.3  
4
0.2  
5
0.45 to 10 GHz  
0.1  
10  
3.5  
1
2.4  
1.9  
0.9  
5.5  
0.1 0.2
 
0.3 0.4
 
0.5  
1.5  
0.45  
2
3
4 5  
0
0.45  
5.5  
−
0.1  
−
10  
10.0  
10.0  
−
0.2  
−
5  
−
4  
−
0.3  
−
3  
−
0.4  
−
0.5  
−
2  
−
1.5  
8mA  
−
1  
15mA  
Figure 15  
Source impedance for minimum noise figure
Z

S,opt

= f(
f
) ,
V

CE

= 1.8 V,
I

C

= 8 / 15 mA  
Datasheet  
16  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
1
1.5  
0.5  
2
0.4  
12.0  
3
12.0  
0.3  
11.0  
10.0  
11.0  
4
10.0  
0.2  
5
0.03 to 12 GHz  
9.0  
8.0  
9.0  
8.0  
0.1  
10  
0.1 0.2
 
0.3 0.4
 
0.5  
7.0  
1
1.5  
2
3
4 5  
7.0  
6.0  
5.0  
0
1.0  
2.0  
3.0  
3.0  
4.0  
6.0  
5.0  
−
0.1  
−
10  
1.0  
0.03  
4.0  
0.03  
2.0  
−
0.2  
−
5  
−
4  
−
0.3  
−
3  
−
0.4  
−
0.5  
−
2  
−
1.5  
8.0mA  
15mA  
−
1  
Figure 16  
Output reflection
coefficient
S

22

= f(
f
),
V

CE

= 1.8 V,
I

C

= 8 / 15 mA  
2
1.8  
1.6  
1.4  
1.2  
1
0.8  
I

C

= 15mA  
I

C

= 8mA  
0.6  
0.4  
0.2  
0
0
1
2
3
4
5
6
7
8
9
10  
f [GHz]  
Figure 17  
Noise figure
NF

min

= f(
f
),
V

CE

= 1.8 V,
Z

S

=
Z

S,opt

,
I

C

= 8 / 15 mA  
Datasheet  
17  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Electrical characteristics  
3
2.8  
2.6  
2.4  
2.2  
2
f = 10GHz  
f = 5.5GHz  
f = 3.5GHz  
f = 2.4GHz  
f = 0.9GHz  
1.8  
1.6  
1.4  
1.2  
1
0.8  
0.6  
0.4  
0.2  
0
0
5
10  
15  
20  
25  
I

C

[mA]  
Figure 18  
Noise figure
NF

min

= f(
I

C

),
V

CE

= 1.8 V,
Z

S

=
Z

S,opt

,
f
= parameter in GHz  
4
f = 10GHz  
3.5  
3
f = 5.5GHz  
f = 3.5GHz  
f = 2.4GHz  
f = 0.9GHz  
2.5  
2
1.5  
1
0.5  
0
0
5
10  
15  
20  
25  
I

C

[mA]  
Figure 19  
Noise figure
NF

50

= f(
I

C

),
V

CE

= 1.8 V,
Z

S

= 50 Ω,
f
= parameter in GHz  
Note:  
The curves shown in this chapter have been generated using typical devices but shall not be  
considered as a guarantee that all devices have identical characteristic curves. T

A

= 25 °C.  
Datasheet  
18  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Package information TSFP-4-1  
4
Package information TSFP-4-1  
Figure 20  
Package outline  
Figure 21  
Figure 22  
Foot print  
Marking layout example  
Figure 23  
Tape dimensions  
Datasheet  
19  
v2.0  
2018-09-26  

BFP843F  
SiGe:C NPN RF bipolar transistor  
Revision history  
Revision history  
Document  
version  
Date of  
release  
Description of changes  
2.0  
2018-09-26  
New datasheet layout.  
Datasheet  
20  
v2.0  
2018-09-26  

Trademarks  
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Edition 2018-09-26  
Published by  
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