DATA SH EET
Product specification September1995
DISCRETE SEMICONDUCTORS
BFS17A
NPN 3 GHz wideband transistor
September1995 2
NXP Semiconductors Product specification
NPN 3 GHz wideband transistor BFS17A
DESCRIPTION
NPN transistor in a plastic SOT23 package.
APPLICATIONS
It is intended for RF applications such as oscillators
in TV tuners.
PINNING
PIN DESCRIPTION
1base
2 emitter
3 collector
Fig.1 SOT23.
Marking code: E2p.
handbook, halfpage
MSB003
Top view
12
3
QUICK REFERENCE DATA
LIMITING VALUES
In accordance with the A bsolute Maxi m um Rating System (IEC 134).
Note to the Quick reference data and the Limiting values
1. Ts is the temperature at the sold ering point of the collector pin.
SYMBOL PARAMETER CONDITIONS TYP. MAX. UNIT
VCBO collector-base voltage open emitter 25 V
VCEO collector-emitter voltage open base 15 V
ICDC collector current 25 mA
Ptot total power dissipation up to Ts=70C; note 1 300 mW
fTtransition frequenc y IC=25mA; V
CE = 5 V; f = 500 MHz;
Tamb =25C2.8 GHz
GUM maximum unilateral power gain IC=14mA; V
CE =10V; f=800MHz 13.5 dB
F noise figure IC=2mA; V
CE = 5 V; f = 800 MHz;
Tamb =25C2.5 dB
VOoutput voltage dim =60 dB; IC=14mA; V
CE =10V;
RL=75; Tamb =25C;
f(p+qr) =793.25MHz
150 mV
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VCBO collector-base voltage open emitter 25 V
VCEO collector-emitter voltage open base 15 V
VEBO emitter-base voltage open collector 2.5 V
ICDC collector current 25 mA
ICM peak collector current 50 mA
Ptot total power dissipation up to Ts=70C; note 1 300 mW
Tstg storage temperature 65 +150 C
Tjjunction temperature 150 C
September1995 3
NXP Semiconductors Product specification
NPN 3 GHz wideband transistor BFS17A
THERMAL CHARACTE RISTI CS
Note
1. Ts is the temperature at the sold ering point of the collector pin.
CHARACTERISTICS
Tj=25C unless otherwise specified.
Notes
1. GUM is the maximum unilateral power gain, assuming S12 is zero and dB.
2. dim =60 dB (DIN 45004B); IC=14mA; V
CE =10V; R
L=75; Tamb =25C;
Vp=V
O; fp= 795.25 MHz;
Vq=V
O6dB; f
q= 803.25 MHz;
Vr=V
O6dB; f
r= 805.25 MHz;
measured at f(p+qr) = 793.25 MHz.
SYMBOL PARAMETER CONDITIONS VALUE UNIT
Rth j-s thermal resistance from junction to soldering point up to Ts=70C; note 1 260 K/W
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
ICBO collector cut-off current IE=0; V
CB =10V 50 nA
hFE DC current gain IC=2mA; V
CE =1V; T
amb =25C25 90
IC=25mA; V
CE =1V; T
amb =25C25 90
fTtransition frequenc y IC=25mA; V
CE = 5 V; f = 500 MHz;
Tamb =25C2.8 GHz
Cccollector capacitance IE=0; V
CB =10V; f=1MHz;
Tamb =25C0.7 pF
Ceemitter capacita nce IC=0; V
EB = 0.5V; f=1MHz 1.25 pF
Cre feedback ca pacitance IC=0; V
CE =5V; f=1MHz 0.6 pF
GUM maximum unilateral power gain
note 1 IC=14mA; V
CE =10V; f=800MHz 13.5 dB
F noise figure IC=2mA; V
CE =5V; Z
S=60;
f=800MHz; T
amb =25C2.5 dB
VOoutput voltage note 2 150 mV
GUM 10 log S21 2
1S
11 2
1S
22 2

----------------------------------------------------------
=
September1995 4
NXP Semiconductors Product specification
NPN 3 GHz wideband transistor BFS17A
Fig.2 Intermodulation distortion and second ord er inte rmodulation distortion test cir cu i t.
L1 = L3 = 5 H Ferroxcube choke.
L2 = 3 turns 0.4 mm copper wir e; winding pitch 1 mm; internal diame ter 3 mm.
handbook, full pagewidth
MBB251
18 Ω
1.5 nF
10 kΩL2
L1
1 nF
75 Ω
input
270 Ω
1 nF
L3
1.5 nF
1 nF
0.68 pF
3.3 pF
DUT
75 Ω
output
VCC
VBB
Fig.3 DC current gain as a fu nction of
collector current.
VCE =1V; T
amb =25C.
handbook, halfpage
0
100
50
010 30
MEA395
20 IC (mA)
hFE
Fig.4 Collector capacitance as a function of
collector-base voltage.
IE= 0; f = 1 MHz; Tamb =25C.
handbook, halfpage MEA903
0
1
0.5
04 8 12 16
VCB (V)
Cc
(pF)
September1995 5
NXP Semiconductors Product specification
NPN 3 GHz wideband transistor BFS17A
Fig.5 Transition frequency as a function of
collector current.
VCE = 5 V; f = 500 MHz; Tamb =25C.
handbook, halfpage MEA904
0
0
1
2
3
4
20 40
IC (mA)
fT
(GHz)
Fig.6 Minimum noise figure as a func tion of
collector current.
VCE =5V; Z
s=60; f = 800 MHz; Tamb =25C.
handbook, halfpage MEA902
0
5
0
1
2
3
4
10 20
F
(dB)
IC (mA)
September1995 6
NXP Semiconductors Product specification
NPN 3 GHz wideband transistor BFS17A
PACKAGE OUTLINE
UNIT A1
max. bpcDE e1HELpQwv
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
04-11-04
06-03-16
IEC JEDEC JEITA
mm 0.1 0.48
0.38 0.15
0.09 3.0
2.8 1.4
1.2 0.95
e
1.9 2.5
2.1 0.55
0.45 0.1
0.2
DIMENSIONS (mm are the original dimensions)
0.45
0.15
SOT23 TO-236AB
bp
D
e1
e
A
A1
Lp
Q
detail X
HE
E
wM
vMA
B
AB
0 1 2 mm
scale
A
1.1
0.9
c
X
12
3
Plastic surface-mounted package; 3 leads SOT23
September1995 7
NXP Semiconductors Product specification
NPN 3 GHz wideband transistor BFS17A
DATA SHEET STATUS
Notes
1. Please consult the most recently issued document b efore initiating or completing a design.
2. The product status of device(s) described in this document may have changed since this do cument was published
and may differ in case of multiple devices. The latest product status information is available on th e Internet at
URL http://www.nxp.com.
DOCUMENT
STATUS(1) PRODUCT
STATUS(2) DEFINITION
Objective data sheet Development This doc ument contains data from the objective specification for pro duct
development.
Preliminary data sheet Qualification This document contains data from the preliminary specification.
Product data sheet Production This document contains the pr oduct specification.
DEFINITIONS
Product specification The information and da ta
provided in a Product data she et shall define the
specification of the product as agreed between NXP
Semiconductors and its custo m er, unless NXP
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DISCLAIMERS
Limited warranty and liability Information in this
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However, NXP Semiconduc tors does not give any
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reserves the right to make changes to information
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Applications Applications that are described herein for
any of these products are for illustrative purposes only.
NXP Semiconductors makes no representation or
warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of
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Semiconductors products, and NXP Semiconductors
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associated with their ap plications and produ cts .
September1995 8
NXP Semiconductors Product specification
NPN 3 GHz wideband transistor BFS17A
NXP Semiconductors does not accept any liability related
to any default, damage, cost s or problem which is based
on any weakness or default in the customer’s applications
or products, or the applic ation or use by customer’s third
party customer(s). Customer is responsible for doing all
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customer(s). NXP does not accept any liability in this
respect.
Limiting values Stress above one or more limiting
values (as defined in the Absolute Maximum Ratings
System of IEC 60134) will cause permanent damage to
the device. Limiting values are stress ratings only and
(proper) operat ion of the device at these or any other
conditions above those given in the Recommended
operating conditions section (if present) or the
Characteristics sections of this document is not warranted.
Constant or repeated exposure to limiting values will
permanently and irreversibly affect the quality and
reliability of the device.
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Semiconductors products are sold subje ct to th e general
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Quick refer ence data The Quick reference data is an
extract of th e product data given in the Li miting values and
Characteristics sections of this document, and as such is
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Customer notification
This data sheet was changed to reflect the new company name NXP Semiconductors, including new legal
definitions and disclaimer s. No cha ng es were made to the technical co ntent, except for package outline
drawings which were updated to the latest version.
Printed in The Netherlands R77/02/pp9 Date of release: September1995