Continental Device India Limited
An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company
NPN SILICON PLANAR EPITAXIAL TRANSISTORS
BC549,A.B,C
BC550,A,B,C
TO-92
Plastic Package
For Lead Free Parts, Device
Part # will be Prefixed with
"T"
C
BE
Low Noise Transistors
ABSOLUTE MAXIMUM RATINGS (T
a
=25ºC)
DESCRIPTION
Collector Emitter Voltage
Collector Base Voltage
Emitter Base Voltage
Collector Current Continuous
Power Dissipation at T
a
=25ºC
Derate Above 25ºC
Power Dissipation at T
c
=25ºC
Derate Above 25ºC
Operating And Storage Junction
Temperature Range
THERMAL RESISTANCE
Junction to Case
Junction to Ambient in free air
SYMBOL
V
CEO
V
CBO
V
EBO
I
C
P
D
P
D
T
j
, T
stg
BC549
30
30
5.0
100
625
5.0
1.5
12
- 55 to +150
BC550
45
50
UNITS
V
V
V
mA
mW
mW/ºC
W
mW/ºC
ºC
R
th (j-c)
R
th (j-a)
83.3
200
ºC/W
ºC/W
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise)
DESCRIPTION
Collector Emitter Voltage
SYMBOL
V
CEO
TEST CONDITION
I
C
=1mA, I
B
=0
BC549
BC550
I
C
=100µA, I
E
=0
BC549
BC550
I
E
=10µA, I
C
=0
V
CB
=30V, I
E
=0
V
CB
=30V, I
E
=0, T
a
= +125ºC
V
EB
=4V, I
C
=0
MIN
30
45
30
50
5.0
15
5.0
15
TYP
MAX
UNITS
V
V
V
V
V
nA
µA
nA
Collector Base Voltage
V
CBO
Emitter Base Voltage
Collector Cut Off Current
Emitter Cut Off Current
BC549_550Rev_1 081205E
V
EBO
I
CBO
I
EBO
Continental Device India Limited
Data Sheet
Page 1 of 5
NPN SILICON PLANAR EPITAXIAL TRANSISTORS
BC549,A.B,C
BC550,A,B,C
TO-92
Plastic Package
C
BE
For Lead Free Parts, Device
Part # will be Prefixed with
"T"
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise)
DESCRIPTION
DC Current Gain
SYMBOL
TEST CONDITION
h
FE
I
C
=10µA, V
CE
=5V
B/C
I
C
=2mA, V
CE
=5V
BC549A/BC550A
BC549B/550B
BC549C/550C
BC549/550
I
C
=10mA, I
B
=0.5mA
I
C
=10mA, I
B
=See Note (1)
*I
C
=100mA, I
B
=5mA
I
C
=100mA, I
B
=5mA
I
C
=10µA, V
CE
=5V
I
C
=100µA, V
CE
=5V
I
C
=2mA, V
CE
=5V
110
200
420
110
220
450
800
800
0.25
0.60
0.60
1.1
0.52
0.55
0.55
0.70
MIN
100
TYP
MAX
UNITS
Collector Emitter Saturation Voltage
V
CE (sat)
Base Emitter Saturation Voltage
Base Emitter On Voltage
*V
BE (sat)
V
BE (on)
V
V
V
V
V
V
V
SMALL SIGNAL CHARACTERISTICS
DESCRIPTION
SYMBOL
TEST CONDITION
f
T
I
C
=10mA, V
CE
=5V, f=100MHz
Transistors Frequency
C
cbo
V
CE
=10V, I
E
=0, f=1MHz
Collector Base Capacitance
h
fe
I
C
=2mA, V
CE
=5V, f=1KHz
Small Signal Current
BC549/550
BC549B/550B
BC549C/550C
I
C
=200µA, V
CE
=5V, R
S
=2 kΩ,
Noise Figure
NF
f=30 Hz - 15KHz
I
C
=200µA, V
CE
=5V, R
S
=100
kΩ, f=1KHz
Note 1- I
B
is value for which I
C
= 11mA at V
CE
=1V
*Pulse Test = 300µs - Duty Cycle = 2%
µ
BC549_550Rev_1 081205E
MIN
TYP
250
2.5
MAX
UNITS
MHz
pF
125
240
450
900
500
900
2.5
dB
10
dB
Continental Device India Limited
Data Sheet
Page 2 of 5
BC549,A.B,C
BC550,A,B,C
TO-92
Plastic Package
For Lead Free Parts, Device
Part # will be Prefixed with
"T"
TO-92 Plastic Package
B
Dimension With 'L'
Uncontrolled
Beyond 'L'
2
3
D
G
F
F
A A
K
1
D
E
SEC AA
DIM
MIN. MAX.
A
5.33
4.32
B
5.20
4.45
C
4.19
3.18
D
0.55
0.41
E
0.50
0.35
F
5 DEG
G
1.14
1.40
H
1.20
1.40
K
12.70
—
L
1.982 2.082
M
1.03
1.20
All dimensions are in mm
M
Solderability Ensured
L
3 2 1
Mold
Parting
Line
H
C
A
PIN CONFIGURATION
1. EMITTER
2. BASE
3. COLLECTOR
3 2 1
The TO-92 Package , Tape and Ammo Pack drawings are correct as on the date of issue/revision of this Data Sheet.
The currently valild dimensions and information, may please be confirmed from the TO-92 Drawing in the Packages and
Packing Section of the Product Catalogue.
Packing Details
PACKAGE
Details
TO-92 Bulk
TO-92 T&A
1K/
polybag
2K/
ammo box
STANDARD PACK
Net Weight/ t
Qy
200 gm/ pcs
1K
645 gm/ pcs
2K
Size
3" x 7.5" x 7.5"
12.5" x 8" x 1.8"
INNER CARTON BOX
Qty
5K
2K
Size
17" x 15" x 13.5"
17" x 15" x 13.5"
OUTER CARTON BOX
Qty
80K
32K
Gr Wt
23 kgs
12.5 kgs
BC549_550Rev_1 081205E
Continental Device India Limited
Data Sheet
Page 3 of 5
BC549,A.B,C
BC550,A,B,C
TO-92
Plastic Package
For Lead Free Parts, Device
Part # will be Prefixed with
"T"
Component Disposal Instructions
1. CDIL Semiconductor Devices are RoHS compliant, customers are requested to please
dispose as per prevailing Environmental Legislation of their Country.
2.
In Europe, please dispose as per EU Directive 2002/96/EC on Waste Electrical and
Electronic Equipment (WEEE).
BC549_550Rev_1 081205E
Continental Device India Limited
Data Sheet
Page 4 of 5
Customer Notes
BC549,A.B,C
BC550,A,B,C
TO-92
Plastic Package
For Lead Free Parts, Device
Part # will be Prefixed with
"T"
Disclaimer
The product information and the selection guides facilitate selection of the CDIL's Semiconductor Device(s) best suited for
application in your product(s) as per your requirement. It is recommended that you completely review our Data Sheet(s) so as to
confirm that the Device(s) meet functionality parameters for your application. The information furnished in the Data Sheet and on
the CDIL Web Site/CD are believed to be accurate and reliable. CDIL however, does not assume responsibility for inaccuracies or
incomplete information. Furthermore, CDIL does not assume liability whatsoever, arising out of the application or use of any
CDIL product; neither does it convey any license under its patent rights nor rights of others. These products are not designed for
use in life saving/support appliances or systems. CDIL customers selling these products (either as individual Semiconductor
Devices or incorporated in their end products), in any life saving/support appliances or systems or applications do so at their own
risk and CDIL will not be responsible for any damages resulting from such sale(s).
CDIL strives for continuous improvement and reserves the right to change the specifications of its products without prior notice.
CDIL is a registered Trademark of
Continental Device India Limited
C-120 Naraina Industrial Area, New Delhi 110 028, India.
Telephone + 91-11-2579 6150, 4141 1112 Fax + 91-11-2579 5290, 4141 1119
email@cdil.com
www.cdilsemi.com
BC549_550Rev_1 081205E
Continental Device India Limited
Data Sheet
Page 5 of 5
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