Continental Device India Limited
An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company
NPN SILICON PLANAR EPITAXIAL TRANSISTORS
BC237,238, A,B,C
BC239, B,C
TO-92
Plastic Package
For Lead Free Parts, Device
Part # will be Prefixed with
"T"
C
BE
Amplifier Transistors
ABSOLUTE MAXIMUM RATINGS (T
a
=25ºC)
DESCRIPTION
Collector Emitter Voltage
Collector Emitter 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 Ambient in free air
Junction to Case
SYMBOL
V
CEO
V
CES
V
EBO
I
C
P
D
P
D
T
j
, T
stg
BC237
45
50
6.0
100
350
2.8
1.0
8.0
- 55 to +150
BC238
25
30
5.0
BC239
25
30
5.0
UNITS
V
V
V
mA
mW
mW/ºC
W
mW/ºC
ºC
R
th (j-a)
R
th (j-c)
357
125
ºC/W
ºC/W
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise)
DESCRIPTION
Collector Emitter Voltage
SYMBOL
V
CEO
TEST CONDITION
I
C
=2mA, I
B
=0
BC237
BC238/BC239
I
E
=10µA, I
C
=0
BC237
BC238/BC239
BC238/BC239
V
CE
=30V, V
BE
=0
BC237
V
CE
=50V, V
BE
=0
BC238/BC239
V
CE
=30V, V
BE
=0, Ta=125ºC
BC237
V
CE
=50V, V
BE
=0, Ta=125ºC
BC237_239Rev_1 201205E
MIN
45
25
6.0
5.0
MAX
UNITS
V
V
V
V
Emitter Base Voltage
V
EBO
Collector Cut Off Current
I
CES
15
15
nA
nA
µA
µA
4.0
4.0
Continental Device India Limited
Data Sheet
Page 1 of 5
NPN SILICON PLANAR EPITAXIAL TRANSISTORS
BC237,238, A,B,C
BC239, 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
h
FE
TEST CONDITION
I
C
=10µA, V
CE
=5V
A
B
C
I
C
=2mA, V
CE
=5V
BC237/238/239
A
B
C
*I
C
=100mA, V
CE
=5V
A
B
C
I
C
=10mA, I
B
=0.5mA
*I
C
=100mA, I
B
=5mA
BC237/239
BC238
I
C
=10mA, I
B
=0.5mA
*I
C
=100mA, I
B
=5mA
I
C
=2mA, V
CE
=5V
0.60
0.80
0.83
1.05
0.70
V
V
V
V
V
120
120
200
380
MIN
MAX
UNITS
TYP90
TYP150
TYP270
800
220
460
800
TYP120
TYP180
TYP300
0.20
Collector Emitter Saturation Voltage
V
CE (sat)
V
Base Emitter Saturation Voltage
Base Emitter On Voltage
V
BE (sat)
V
BE (on)
0.55
SMALL SIGNAL CHARACTERISTICS
DESCRIPTION
SYMBOL
TEST CONDITION
f
T
I
C
=0.5mA, V
CE
=3V, f=100MHz
Transistors Frequency
BC237
BC238
BC239
Collector Output Capacitance
Emitter Input Capacitance
Noise Figure
C
ob
C
ib
NF
I
C
=10mA, V
CE
=5V, f=100MHz
V
CB
=10V, I
E
=0, f=1MHz
V
EB
=0.5V, f=1MHz
V
CE
=5V, I
C
=0.2mA, R
S
=2KΩ,
f=1KHz, B=200Hz
BC237/238
BC239
MIN
MAX
UNITS
MHz
MHz
MHz
TYP100
TYP120
TYP140
150
4.5
TYP8
MHz
pF
pF
10
4.0
dB
dB
*Pulse Test: Pulse Width < 300µs, Duty Cycle < 2%
µ
BC237_239Rev_1 201205E
Continental Device India Limited
Data Sheet
Page 2 of 5
BC237,238, A,B,C
BC239, 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
DIM
A
Beyond 'L'
2
3
D
G
F
F
A A
K
1
D
E
SEC AA
B
C
D
E
0.35
0.50
5 DEG
F
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
MIN.
4.32
4.45
3.18
0.41
MAX.
5.33
5.20
4.19
0.55
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
BC237_239Rev_1 201205E
Continental Device India Limited
Data Sheet
Page 3 of 5
BC237,238, A,B,C
BC239, 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).
BC237_239Rev_1 201205E
Continental Device India Limited
Data Sheet
Page 4 of 5
Customer Notes
BC237,238, A,B,C
BC239, 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, 5141 1112 Fax + 91-11-2579 5290, 5141 1119
email@cdil.com
www.cdilsemi.com
BC237_239Rev_1 201205E
Continental Device India Limited
Data Sheet
Page 5 of 5
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