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NPN EPITAXIAL
BC546/547/548/549/550 SILICON TRANSISTOR
SWITCHING AND AMPLIFIER
• HIGH VOLTAGE: BC546, V
• LOW NOISE: BC549, BC550
• Complement to BC556 ... BC560
ABSOLUTE MAXIMUM RATINGS (TA=25°°C)
Characteristic Symbol Rating Unit
CEO
=65V
TO-92
Collector Base Voltage
: BC546
: BC547/550
: BC548/549
Collector-Emitter Voltage
: BC546
: BC547/550
: BC548/549/550
Emitter-Base Voltage
: BC546/547
: BC548/549/550
Collector Current (DC)
Collector Dissipation
Junction Temperature
Storage Temperature
V
CBO
80
50
30
V
CEO
65
45
V
EBO
30
6
I
C
P
C
T
J
T
STG
5
100
500
150
-65 ~ 150
ELECTRICAL CHARACTERISTICS (TA=25°°C)
Characteristic Symbol Test Conditions Min Typ Max Unit
Collector Cut-off Current
DC Current Gain
Collector Emitter Saturation Voltage
Collector Base Saturation Voltage
Base Emitter On Voltage
Current Gain Bandwidth Product
Collector Base Capacitance
Emitter Base Capacitance
Noise Figure : BC546/547/548
: BC549/550
: BC549
: BC550
I
h
V
V
V
f
C
C
NF
NF
CBO
T
FE
CE
BE
BE
CBO
EBO
(sat)
(on)
(on)
V
V
V
V
V
V
V
V
V
mA
mW
°C
°C
VCB=30V, IE=0
VCE=5V, IC=2mA
IC=10mA, IB=0.5mA
IC=100mA, IB=5mA
IC=10mA, IB=0.5mA
IC=100mA, IB=5mA
VCE=5V, IC=2mA
VCE=5V, IC=10mA
VCE=5V, IC=10mA
VCB=10V, f=1MHz
VEB=0.5V, f=1MHz
VCE=5V, IC=200µA
f=1KHz, RG=2KΩ
VCE=5V, IC=200µA
RG=2KΩ,
f=30~15000MHz
1. Collector 2. Base 3. Emitter
110
580
200
700
900
660
15
800
90
250
600
700
720
300
3.5
6
9
2
10
1.2
1.4
1.4
4
4
3
nA
mA
mA
mA
mA
mA
mA
MHz
pF
pF
dB
dB
dB
dB
h
CLASSIFICATION
FE
Classification A B C
h
FE
110-220 200-450 420-800
Rev. B
1999 Fairchild Semiconductor Corporation
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NPN EPITAXIAL
BC546/547/548/549/550 SILICON TRANSISTOR
Page 3
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
CoolFET™
CROSSVOLT™
E2CMOS
TM
FACT™
FACT Quiet Series™
®
FAST
FASTr™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
Formative or
In Design
First Production
Full Production
Not In Production
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
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