Continental Device India Limited
An ISO/TS 16949 and ISO 9001 Certified Company
NPN SILICON PLANAR TRANSISTORS
2N4237, 2N4238
2N4239
TO-39
Metal Can Package
General Purpose Transistor
ABSOLUTE MAXIMUM RATINGS
DESCRIPTION
Collector Emitter Voltage
Collector Base Voltage
Emitter Base Voltage
Base Current
Collector Current Continuous
Power Dissipation @ T
a
=25ºC
Derate Above 25ºC
Power Dissipation @ T
c
=25ºC
Derate Above 25ºC
Operating and Storage Junction
Temperature Range
THERMAL CHARACTERISTICS
Junction to Case
SYMBOL
V
CEO
V
CBO
V
EBO
I
B
I
C
P
D
P
D
T
j
, T
stg
2N4237
40
50
2N4238
60
80
6.0
500
1.0
1.0
5.3
6.0
34
- 65 to +200
2N4239
80
100
UNIT
V
V
V
mA
A
W
mW/ ºC
W
mW/ ºC
ºC
R
th (j-c)
29
ºC/W
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise )
DESCRIPTION
SYMBOL TEST CONDITION
V
CEO
I
C
=1mA, I
B
=0
Collector Emitter Voltage
Collector Cut Off Current
I
CEX
V
CE
=50V, V
EB
=1.5V
V
CE
=80V, V
EB
=1.5V
V
CE
=100V, V
EB
=1.5V
T
C
=150ºC
V
CE
=30V, V
EB
=1.5V
V
CE
=50V, V
EB
=1.5V
V
CE
=70V, V
EB
=1.5V
2N4237
40
0.1
2N4238 2N4239
60
80
0.1
0.1
UNIT
V
mA
mA
mA
1.0
1.0
1.0
MIN
TYP
MAX
0.1
0.07
0.5
30
30
30
15
150
mA
mA
mA
Collector Cut Off Current
Collector Cut Off Current
Emitter Cut Off Current
DC Current Gain
I
CBO
I
CEO
I
EBO
*h
FE
V
CB
=Rated V
CBO
, I
E
=0
V
CE
=Rated V
CEO
, I
B
=0
V
EB
=6V, I
C
=0
I
C
=50mA, V
CE
=1V
I
C
=250mA, V
CE
=1V
I
C
=500mA, V
CE
=1V
I
C
=1A, V
CE
=1V
mA
mA
mA
*Pulse Test: Pulse Width < 300µs, Duty Cycle < 2%
µ
2N4237_4239Rev121004E
Continental Device India Limited
Data Sheet
Page 1 of 4
NPN SILICON PLANAR TRANSISTORS
2N4237, 2N4238
2N4239
TO-39
Metal Can Package
ELECTRICAL CHARACTERISTICS (T
a
=25ºC unless specified otherwise)
SMALL SIGNAL CHARACTERISTICS
DESCRIPTION
Collector Emitter Saturation Voltage
Base Emitter Saturation Voltage
Base Emitter On Voltage
SMALL SIGNAL CHARACTERISTICS
Output Capacitance
Small Signal Current Gain
Current Gain High Frequency
C
obo
h
fe
lh
fe
|
V
CB
=10V, I
E
=0,
f=0.1MHz
I
C
=100mA, V
CE
=10V,
f=1KHz
I
C
=100mA, V
CE
=10V,
f=1MHz
30
1.0
100
pF
SYMBOL
*V
CE (sat)
*V
BE (sat)
*V
BE (on)
TEST CONDITION
I
C
=500mA, I
B
=50mA
I
C
=1A, I
B
=0.1A
I
C
=1A, I
B
=0.1A
I
C
=250mA, V
CE
=1V
MIN
TYP
MAX
0.3
0.6
1.5
1.0
UNIT
V
V
V
V
µ
*Pulse Test: Pulse Width < 300µs, Duty Cycle < 2%
2N4237_4239Rev121004E
Continental Device India Limited
Data Sheet
Page 2 of 4
2N4237, 2N4238
2N4239
TO-39
Metal Can Package
TO-39 Metal Can Package
A
B
D
G
2
1
3
PIN CONFIGURATION
1. EMITTER
2. BASE
3. COLLECTOR
L
H
J
3
2
1
Packing Detail
PACKAGE
Details
TO-39
STANDARD PACK
Net Weight/Qty
Size
3" x 7.5" x 7.5"
500 pcs/
polybag 540 gm/
500 pcs
INNER CARTON BOX
Qty
20K
Size
17" x 15" x 13.5"
OUTER CARTON BOX
Qty
32K
Gr Wt
40 kgs
2N4237_4239Rev121004E
Continental Device India Limited
F
Data Sheet
All dimensions are in mm
DIM
A
B
C
D
E
F
G
H
J
K
L
MIN
MAX
8.50
9.39
7.74
8.50
6.09
6.60
0.40
0.53
—
0.88
2.41
2.66
4.82
5.33
0.71
0.86
0.73
1.02
12.70
—
42 DEG 48 DEG
E
K
C
Page 3 of 4
Customer Notes
2N4237, 2N4238
2N4239
TO-39
Metal Can Package
Disclaimer
The product information and the selection guides facilitate selection of the CDIL's Discrete 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
Discrete 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
2N4237_4239Rev121004E
Continental Device India Limited
Data Sheet
Page 4 of 4
