DATA SH EET
Product specification 2002 Nov 19
DISCRETE SEMICONDUCTORS
PSS8550
PNP medium power 25 V transistor
b
ook, halfpage
M3D186
2002 Nov 19 2
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
FEATURES
High total power dissipation
High current capability.
APPLICATIONS
Medium power switching and muting
Amplification
Portable radio output amplifier (class-B, push-pull).
DESCRIPTION
PNP transistor in a SOT54 (TO-92) plastic package.
NPN complement: PSS8050.
MARKING
TYPE NUMBER MARKING CODE
PSS8550C S8550C
PSS8550D S8550D
PINNING
PIN DESCRIPTION
1 collector
2 base
3 emitter
handbook, halfpage
1
3
2
MSB033
Fig.1 Simplified outline (SOT54).
QUICK REFERENCE DATA
SYMBOL PARAMETER MAX. UNIT
VCEO collector-emitter voltage 25 V
ICcollector current (DC) 1.5 A
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
Notes
1. Device mounted on a printed-circuit board; single sided copper; tinplated; standard footprint.
2. Device mounted on a printed-circuit board; single sided copper; tinplated; mounting pad for collector 1 cm2.
3. Device mounted on a printed-circuit board; single sided copper; tinplated; standard footprint. Operated under pulsed
conditions: pulse width tp1 s; duty cycle δ≤0.75%.
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VCBO collector-base voltage open emitter −−40 V
VCEO collector-emitter voltage open base −−25 V
VEBO emitter-base voltage open collector −−6V
I
Ccollector current (DC) −−1.5 A
ICM peak collector current −−2A
I
Bbase current (DC) −−300 mA
IBM peak base current −−1A
P
tot total power dissipation Tamb 25 °C; note 1 850 mW
Tamb 25 °C; note 2 900 mW
Tamb 25 °C; note 3 1W
T
stg storage temperature 65 +150 °C
Tjjunction temperature 150 °C
Tamb operating ambient temperature 65 +150 °C
2002 Nov 19 3
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
THERMAL CHARACTERISTICS
Notes
1. Device mounted on a printed-circuit board; single sided copper; tinplated; standard footprint.
2. Device mounted on a printed-circuit board; single sided copper; tinplated; mounting pad for collector 1 cm2.
3. Device mounted on a printed-circuit board; single sided copper; tinplated; standard footprint.
Operated under pulsed conditions: pulse width tp1 s; duty cycle δ≤0.75%.
CHARACTERISTICS
Tamb =25°C unless otherwise specified.
SYMBOL PARAMETER CONDITIONS VALUE UNIT
Rth j-a thermal resistance from junction to ambient in free air; note 1 147 K/W
in free air; note 2 139 K/W
in free air; note 3 125 K/W
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
ICBO collector-base cut-off current VCB =35 V; IE=0 −−−100 nA
VCB =35 V; IE=0;
T
amb = 150 °C−−−50 µA
ICEO collector-emitter cut-off current VCE =25 V; IB=0 −−−100 nA
IEBO emitter-base cut-off current VEB =6 V; IC=0 −−−100 nA
hFE DC current gain IC=5 mA; VCE =1V 45 −−
I
C
=800 mA; VCE =1V 40 −−
DC current gain IC=100 mA; VCE =1V
PSS8550C 120 200
PSS8550D 160 300
VCEsat collector-emitter saturation voltage IC=800 mA; IB=80 mA −−190 500 mV
VBEsat base-emitter saturation voltage IC=800 mA; IB=80 mA −−−1.2 V
VBEon base-emitter turn-on voltage IC=10 mA; VCE =1V −−−1V
f
Ttransition frequency IC=50 mA; VCE =10 V;
f = 100 MHz 100 −−MHz
Cccollector capacitance VCB =10V; I
E=i
e= 0; f = 1 MHz −−12 pF
2002 Nov 19 4
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
handbook, halfpage
0
400
100
200
300
MLD958
1011IC (mA)
hFE
10 102103104
(1)
(2)
(3)
Fig.2 DC current gain as a function of collector
current; typical values.
PSS8550C VCE =1V.
(1) Tamb = 150 °C.
(2) Tamb =25°C.
(3) Tamb =55 °C.
handbook, halfpage
200
1200
400
600
800
1000
MLD959
101110 IC (mA)
VBE
(mV)
103
102104
(1)
(2)
(3)
Fig.3 Base-emitter voltage as a function of
collector current; typical values.
PSS8550C VCE =1V.
(1) Tamb =55 °C.
(2) Tamb =25°C.
(3) Tamb = 150 °C.
handbook, halfpage
101110 102103104
10
102
103
MLD960
IC (mA)
VCEsat
(mV)
(1)
(3)
(2)
Fig.4 Collector-emitter saturation voltage as a
function of collector current; typical values.
PSS8550C IC/IB= 10.
(1) Tamb = 150 °C.
(2) Tamb =25°C.
(3) Tamb =55 °C.
handbook, halfpage
200
1200
400
600
800
1000
MLD962
101110 IC (mA)
VBEsat
(mV)
103
102104
(1)
(2)
(3)
Fig.5 Base-emitter saturation voltage as a
function of collector current; typical values.
PSS8550C IC/IB= 10.
(1) Tamb =55 °C.
(2) Tamb =25°C.
(3) Tamb = 150 °C.
2002 Nov 19 5
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
handbook, halfpage
MLD961
103
102
1
0
10
1011
RCEsat
()
IC (mA)
10 102103104
(1)
(3)
(2)
Fig.6 Equivalent on-resistance as a function of
collector current; typical values.
PSS8550C IC/IB= 10.
(1) Tamb = 150 °C.
(2) Tamb =25°C.
(3) Tamb =55 °C.
handbook, halfpage
00.5 1VCE (V)
IC
(A)
2
2.5
0
2
1.5
1.5
1
0.5
MLD963
(9)
(10)
(8)
(7)
(6)
(4)
(1)(2)(3)
(5)
Fig.7 Collector current as a function of
collector-emitter voltage; typical values.
PSS8550C
(1) IB=100 mA.
(2) IB=90 mA.
(3) IB=80 mA.
(4) IB=70 mA.
(5) IB=60 mA.
(6) IB=50 mA.
(7) IB=40 mA.
(8) IB=30 mA.
(9) IB=20 mA.
(10) IB=10 mA.
2002 Nov 19 6
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
handbook, halfpage
0
400
100
200
300
MLD964
1011IC (mA)
hFE
10 102103104
(1)
(2)
(3)
Fig.8 DC current gain as a function of collector
current; typical values.
PSS8550D VCE =1V.
(1) Tamb = 150 °C.
(2) Tamb =25°C.
(3) Tamb =55 °C.
handbook, halfpage
200
1200
400
600
800
1000
MLD965
101110 IC (mA)
VBE
(mV)
103
102104
(1)
(2)
(3)
Fig.9 Base-emitter voltage as a function of
collector current; typical values.
PSS8550D VCE =1V.
(1) Tamb =55 °C.
(2) Tamb =25°C.
(3) Tamb = 150 °C.
handbook, halfpage
101110 102103104
10
102
103
MLD966
IC (mA)
VCEsat
(mV)
(1)
(3)
(2)
Fig.10 Collector-emitter saturation voltage as a
function of collector current; typical values.
PSS8550D IC/IB= 10.
(1) Tamb =55 °C.
(2) Tamb =25°C.
(3) Tamb = 150 °C.
handbook, halfpage
200
1200
400
600
800
1000
MLD968
101110 IC (mA)
VBEsat
(mV)
103
102104
(1)
(2)
(3)
Fig.11 Base-emitter saturation voltage as a
function of collector current; typical values.
PSS8550D IC/IB= 10.
(1) Tamb = 150 °C.
(2) Tamb =25°C.
(3) Tamb =55 °C.
2002 Nov 19 7
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
handbook, halfpage
MLD967
103
102
1
0
10
1011
RCEsat
()
IC (mA)
10 102103104
(1)
(3)
(2)
Fig.12 Equivalent on-resistance as a function of
collector current; typical values.
PSS8550D IC/IB= 10.
(1) Tamb = 150 °C.
(2) Tamb =25°C.
(3) Tamb =55 °C.
handbook, halfpage
00.5 1VCE (V)
IC
(A)
2
2.5
0
2
1.5
1.5
1
0.5
MLD969
(9)
(10)
(1)(2)(3)
(4)
(5)
(8)
(7)
(6)
Fig.13 Collector current as a function of
collector-emitter voltage; typical values.
PSS8550D
(1) IB=100 mA.
(2) IB=90 mA.
(3) IB=80 mA.
(4) IB=70 mA.
(5) IB=60 mA.
(6) IB=50 mA.
(7) IB=40 mA.
(8) IB=30 mA.
(9) IB=20 mA.
(10) IB=10 mA.
2002 Nov 19 8
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
PACKAGE OUTLINE
UNIT A
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC EIAJ
mm 5.2
5.0
b
0.48
0.40
c
0.45
0.40
D
4.8
4.4
d
1.7
1.4
E
4.2
3.6
L
14.5
12.7
e
2.54
e1
1.27
L1
(1)
2.5
b1
0.66
0.56
DIMENSIONS (mm are the original dimensions)
Note
1. Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities.
SOT54 TO-92 SC-43 97-02-28
A L
0 2.5 5 mm
scale
b
c
D
b
1
L1
d
E
Plastic single-ended leaded (through hole) package; 3 leads SOT54
e1e
1
2
3
2002 Nov 19 9
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
DATA SHEET STATUS
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
LEVEL DATA SHEET
STATUS(1) PRODUCT
STATUS(2)(3) DEFINITION
I Objective data Development This data sheet contains data from the objective specification for product
development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.
II Preliminary data Qualification This data sheet contains data from the preliminary specification.
Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.
III Product data Production This data sheet contains data from the product specification. Philips
Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Relevant changes will
be communicated via a Customer Product/Process Change Notification
(CPCN).
DEFINITIONS
Short-form specification The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limiting values definition Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device.
These are stress ratings only and operation of the device
attheseoratanyotherconditionsabovethosegiveninthe
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.
Application information Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
norepresentationorwarrantythatsuch applicationswillbe
suitable for the specified use without further testing or
modification.
DISCLAIMERS
Life support applications These products are not
designed for use in life support appliances, devices, or
systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips
Semiconductorscustomersusingorselling theseproducts
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Right to make changes Philips Semiconductors
reserves the right to make changes in the products -
including circuits, standard cells, and/or software -
described or contained herein in order to improve design
and/or performance. When the product is in full production
(status ‘Production’), relevant changes will be
communicated via a Customer Product/Process Change
Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these
products, conveys no licence or title under any patent,
copyright, or mask work right to these products, and
makes no representations or warranties that these
products are free from patent, copyright, or mask work
right infringement, unless otherwise specified.
2002 Nov 19 10
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
NOTES
2002 Nov 19 11
Philips Semiconductors Product specification
PNP medium power 25 V transistor PSS8550
NOTES
© Koninklijke Philips Electronics N.V. 2002 SCA74
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Printed in The Netherlands 613514/01/pp12 Date of release: 2002 Nov 19 Document order number: 9397 750 10626