BFY420
Semiconductor Group
1 of 5
Draft B, September 99
HiRel NPN Silicon RF Transistor
HiRel Discrete and Microwave Semiconductor
For High Gain Low Noise Amplifiers
For Oscillators up to 10 GHz
Noise Figure F = 1.1 dB at 1.8 GHz
Outstanding Gms = 21dB at 1.8 GHz
Hermetically sealed microwave package
Transition Frequency fT = 22 GHz
SIEGET 25-Line
Infineon Technologies Grounded Emitter Transistor-
25 GHz fT-Line
Space Qualified
ESA/SCC Detail Spec. No.: 5611/008
Type Variant No. 02
ESD: Electrostatic discharge sensitive device,
observe handling precautions!
Type
Marking
Ordering Code
Pin Configuration
1 2 3 4
Package
BFY420 (ql)
-
see below
C
E
B
E
Micro-X
(ql) Quality Level:
P: Professional Quality,
Ordering Code:
Q62702F1662
H: High Rel Quality,
Ordering Code:
on request
S: Space Quality,
Ordering Code:
on request
ES: ESA Space Quality,
Ordering Code:
Q62702F1709
(see order instructions for ordering example)
1
2
3
4
BFY420
Semiconductor Group
2 of 5
Draft B, September 99
Maximum Ratings
Parameter
Symbol
Values
Unit
Collector-emitter voltage
V
CEO
4.5
V
Collector-base voltage
V
CBO
15
V
Emitter-base voltage
V
EBO
1.5
V
Collector current
I
C
35
mA
Base current
I
B
3.0
mA
Total power dissipation,
T
S
129C
1), 2)
P
tot
160
mW
Junction temperature
T
j
175
C
Operating temperature range
T
op
-65...+175
C
Storage temperature range
T
stg
-65...+175
C
Thermal Resistance
Junction-soldering point
2)
R
th JS
<
285
K/W
Notes.:
1) At T
S
= + 129 C. For T
S
> + 129 C derating is required.
2) T
S
is measured on the collector lead at the soldering point to the pcb.
Electrical Characteristics
at T
A
=25C; unless otherwise specified
Parameter
Symbol
Values
Unit
min.
typ.
max.
DC Characteristics
Collector-base cutoff current
V
CB
= 5 V, I
E
= 0
I
CBO
-
-
30
nA
Collector-emitter cutoff current
1.)
V
CE
= 4.5 V, I
B
= 1.0A
I
CEX
-
-
200
(t.b.d.)
A
Emitter-base cuttoff current
V
EB
= 1.5 V, I
C
= 0
I
EBO
-
-
20
A
DC current gain
I
C
= 5 mA, V
CE
= 1 V
h
FE
50
90
150
-
Notes:
1.) This Test assures V(BR)
CE0
> 4.5V
BFY420
Semiconductor Group
3 of 5
Draft B, September 99
Electrical Characteristics (continued)
Parameter
Symbol
Values
Unit
min.
typ.
max.
AC Characteristics
Transition frequency
I
C
= 30mA, V
CE
= 3 V, f = 2.0 GHz
f
T
20
22
-
GHz
Collector-base capacitance
V
CB
= 2 V, V
BE
= vbe = 0, f = 1 MHz
C
CB
-
0.14
0.9
pF
Collector-emitter capacitance
V
CE
= 2 V, V
BE
= vbe = 0, f = 1 MHz
C
CE
-
0.46
0.85
pF
Emitter-base capacitance
V
EB
= 0.5V, V
CB
= vcb = 0, f = 1 MHz
C
EB
-
0.67
3.0
pF
Noise Figure
I
C
= 5 mA, V
CE
= 2 V, f = 1.8 GHz,
Z
S
= Z
sopt
F
-
1.1
1.7
dB
Insertion power gain
I
C
= 20 mA, V
CE
= 2 V, f = 1.8 GHz
Z
S
= Z
L
= 50
|S
21e
|
2
14
18
-
dB
Power gain
I
C
= 20 mA, V
CE
= 2 V, f = 1.8 GHz
Z
S
= Z
Sopt
, Z
L
= Z
Lopt
Gms
1.)
-
21
-
dB
1dB Compression point
I
C
= 20 mA, V
CE
= 2 V, f = 1.8 GHz
Z
S
= Z
Sopt
, Z
L
= Z
Lopt
P
-1dB
-
12
-
dBm
Notes.:
1)
G
S
S
ms
=
21
12
BFY420
Semiconductor Group
4 of 5
Draft B, September 99
Order Instructions:
Full type variant including quality level must be specified by the orderer. For HiRel Discrete
and Microwave Semiconductors the ordering code specifies device family and quality level.
Ordering Form:
Ordering Code: Q..........
BFY420 (ql)
(ql): Quality Level
Ordering Example:
Ordering Code: Q62702F1709
BFY420 ES
For BFY420 in ESA Space Quality Level
Further Informations:
See our WWW-Pages:
- Discrete and RF-Semiconductors (Small Signal Semiconductors)
www.infineon.com/products/discrete/hirel.htm
- HiRel Discrete and Microwave Semiconductors
www.infineon.com/products/discrete/hirel.htm
Please contact also our marketing division :
Tel.:
++89 234 24480
Fax.:
++89 234 28438
e-mail: martin.wimmers@infineon.com
Address:
Infineon Technologies Semiconductors,
High Frequency Products Marketing,
P.O.Box 801709,
D-81617 Munich
BFY420
Semiconductor Group
5 of 5
Draft B, September 99
Micro-X Package
1
2
3
4
Published by Infineon Technologies Semiconductors,
High Frequency Products Marketing, P.O.Box 801709,
D-81617 Munich.
Infineon Technologies AG 1998. All Rights Reserved.
As far as patents or other rights of third parties are
concerned, liability is only assumed for components per
se, not for applications, processes and circuits
implemented within components or assemblies.
The information describes the type of component and shall
not be considered as assured characteristics.
Terms of delivery and rights to change design reserved.
For questions on technology, delivery and prices please
contact the Offices of Semiconductor Group in Germany or
the Infineon Technologies Companies and
Representatives woldwide (see address list).
Due to technical requirements components may contain
dangerous substances. For information on the type in
question please contact your nearest Infineon
Technologies Office, Semiconductor Group.
Infineon Technologies Semiconductors is a certified CECC
and QS9000 manufacturer (this includes ISO 9000).
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