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DATA SH EET
Product data sheet
Supersedes data of 1999 Apr 08
2004 Jan 16
DISCRETE SEMICONDUCTORS
BC849; BC850
NPN general purpose transistors
2004 Jan 16 2
NXP Semiconductors Product data sheet
NPN general purpose transistors BC849; BC850
FEATURES
•Low current (ma x. 100 mA)
•Low voltage (max. 45 V).
APPLICATIONS
•General purpose switc hing and amplification.
DESCRIPTION
NPN transistor in a SOT23 plastic package.
PNP complements: BC859 and BC860.
MARKING
Note
1. * = p : Made in Hong Kong .
* = t : Made in Malaysia.
* = W : Made in China.
PINNING
TYPE
NUMBER MARKING
CODE(1) TYPE
NUMBER MARKING
CODE(1)
BC849B 2B* BC850B 2F*
BC849C 2C* BC850C 2G*
PIN DESCRIPTION
1base
2emitter
3collector
Fig.1 Simplified outline (SOT23 ) and symbo l .
handbook, halfpage
21
3
MAM255
Top view
2
3
1
ORDERING INFORMATION
TYPE
NUMBER PACKAGE
NAME DESCRIPTION VERSION
BC849B −plast i c sur face mounted p a ckage; 3 leads SOT23
BC849C
BC850B
BC850C
2004 Jan 16 3
NXP Semiconductors Pr oduct data shee t
NPN general purpose transistors BC849; BC850
LIMITING VALUES
In accordance with th e Absolute Maximum Ratin g S ystem (IEC 60134).
Note
1. Transistor mounted on an FR4 printed-circuit board.
THERMAL CHARACTE RISTICS
Note
1. Transistor mounted on an FR4 printed-circuit board.
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VCBO collector-base volta ge open emitter
BC849 −30 V
BC850 −50 V
VCEO collector-emitter voltage open base
BC849 −30 V
BC850 −45 V
VEBO emitter-base voltage open collector −5 V
ICcollector current (DC) −100 mA
ICM peak collector current −200 mA
IBM peak base current −200 mA
Ptot total power dissipation Tamb ≤ 25 °C; note 1 −250 mW
Tstg storage temperature −65 +150 °C
Tjjunction temperature −150 °C
Tamb operating ambient temperature −65 +150 °C
SYMBOL PARAMETER CONDITIONS VALUE UNIT
Rth(j-a) thermal resistance from junction to ambient note 1 500 K/W
2004 Jan 16 4
NXP Semiconductors Pr oduct data shee t
NPN general purpose transistors BC849; BC850
CHARACTERISTICS
Tj = 25 °C unless otherwise specified.
Notes
1. VBEsat decreases by about 1.7 mV/K with increasing temperature.
2. VBE decreases by about 2 mV/K with increasing temperature.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
ICBO collector cut-off current IE = 0; VCB = 30 V − − 15 nA
IE = 0; VCB = 30 V; Tj = 150 °C− − 5μA
IEBO emitter cut-off current IC = 0; VEB = 5 V − − 100 nA
hFE DC current gain IC = 10 μA; VCE = 5 V;
see Figs 2 and 3
BC849B; BC850B −240 −
BC849C; BC850 C −450 −
DC current gain IC = 2 mA; VCE = 5 V;
see Figs 2 and 3
BC849B; BC850B 200 290 450
BC849C; BC850 C 420 520 800
VCEsat collector-emitter saturation
voltage IC = 10 mA; IB = 0.5 mA −90 250 mV
IC = 100 mA; IB = 5 mA −200 600 mV
VBEsat base-emitt er saturation voltage IC = 10 mA; IB = 0.5 mA; note 1 −700 −mV
IC = 100 mA; IB = 5 mA; note 1 −900 −mV
VBE base-emitter vo ltage IC = 2 mA; VCE = 5 V; note 2 580 660 700 mV
IC = 10 mA; VCE = 5 V; note 2 − − 770 mV
Cccollector capacitance IE = ie = 0; VCB = 10 V; f = 1 MHz −2.5 −pF
Ceemitter cap a citance IC = ic = 0; VEB = 500 mV; f = 1 MHz −11 −pF
fTtransition freque ncy IC = 10 mA; VCE = 5 V; f = 100 MHz 100 − − MHz
Fnoise figure IC = 200 μA; VCE = 5 V; RS = 2 kΩ;
f = 10 Hz to 15.7 kHz − − 4dB
IC = 200 μA; VCE = 5 V; RS = 2 kΩ;
f = 1 kHz; B = 200 Hz − − 4dB
2004 Jan 16 5
NXP Semiconductors Pr oduct data shee t
NPN general purpose transistors BC849; BC850
Fig.2 DC current gain; typical values.
handbook, full pagewidth
0
300
100
200
MBH724
10−210−1
hFE
1IC (mA)
10 103
102
VCE = 5 V
BC849B; BC850B.
Fig.3 DC current gain; typical values.
handbook, full pagewidth
0
600
200
400
MBH725
10−210−1
hFE
1IC (mA)
10 103
102
VCE = 5 V
BC849C; BC850C.
2004 Jan 16 6
NXP Semiconductors Pr oduct data shee t
NPN general purpose transistors BC849; BC850
PACKAGE OUTLINE
UNIT A
1
max. b
p
cDE e
1
H
E
L
p
Qwv
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
w
M
v
M
A
B
AB
0 1 2 mm
scale
A
1.1
0.9
c
X
12
3
Plastic surface-mounted package; 3 leads SOT2
3
2004 Jan 16 7
NXP Semiconductors Pr oduct data shee t
NPN general purpose transistors BC849; BC850
DATA SHEET STATUS
Notes
1. Please consult the most recently issued document before initiating or completing a design.
2. The product s ta tus of device(s ) described in this document may have changed since this document was published
and may differ in case of multiple devices. The latest product status information is available on the Internet at
URL http://www.nxp.com.
DOCUMENT
STATUS(1) PRODUCT
STATUS(2) DEFINITION
Objective data sheet Development This document 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 T his document contains the product specification.
DISCLAIMERS
General ⎯ Information in this document is believed to be
accurate and reliable . H ow ev er, NXP Semiconductors
does not give any representations or warranties,
expressed or implied, as to the accuracy or completeness
of such information and shall have no liability for the
consequenc es of use of such information.
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reserves the right to make changes to information
published in this doc ument, including without limitation
specifications and product descriptions, at any time and
without notice. This document supersedes and replaces all
information supplied prior to the publication hereof.
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use in medical, military, aircraft, space or life support
equipment, nor in applications where failure or malfunction
of an NXP Semiconductors product can reasonably be
expected to result in pe rs onal injury, death or seve re
property or environmental damage. NXP Semiconductors
accepts no liability for inclusion and/or use of NXP
Semiconductors products in such equipment or
applications and therefor e s uc h inclusion and/or use is at
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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 witho ut fu rth e r testing or modification .
Limiting values ⎯ Stress above one or more limiting
values (as defined in the Absolute Maximum Ratings
System of IEC 60134) may cause permanent damage to
the device. Limiting values are stress ratings only and
operation of the device at these or any other conditions
above those given in the Characteristics sections of this
document is not implied. Exposure to limiting values for
extended periods may affect device reliability.
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products are sold subject to the general terms and
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http://www.nxp.com/profile/terms, including those
pertaining to warranty, intellectual property rights
infringement and limitation of liability, unless explicitly
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case of any incons istency or conflict betw een information
in this document an d such terms and conditio ns, the latter
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No offer to sell or license ⎯ Nothing in this document
may be interpreted or construed as an offer to sell products
that is open for accept ance or the grant, c onveyance or
implication of any license under any copyrights, patents or
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Export control ⎯ This document as well as the item(s)
described herein may be subject to export control
regulations. Export might require a prior authorization from
national author ities.
Quick refer ence data ⎯ The Quick reference data is an
extract of th e product data given in the Limiting values an d
Characteristics sections of this docu ment, and as such is
not complete, exhaus tive or legally binding.
NXP Semiconductors
Contact information
For additional information p lease visit: http://www.nxp.com
For sales offices addresses send e-mail to: salesaddresses@nxp.com
© NXP B.V. 2009
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information pr e sent ed in this document d oes not form part of an y q uot ation or co ntract, is believed to be a ccur ate a nd re li a ble and may be chan ged
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Customer notification
This data sheet was changed to reflect the new company name NXP Semiconductors, including new legal
definitions and disclaimer s. No changes were made to the technical content, except for package outline
drawings which were updated to the latest version.
Printed in The Netherlands R75/06/pp8 Date of release: 2004 Jan 16 Document orde r number: 9397 750 12396
