2N4237
2N4238
2N4239
SILICON
NPN TRANSISTORS
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DESCRIPTION:
The CENTRAL SEMICONDUCTOR 2N4237, 2N4238,
and 2N4239 are silicon NPN transistors mounted in
a hermetically sealed metal case, designed for power
amplifier, power driver, and switching power supply
applications.
MARKING: FULL PART NUMBER
TO-39 CASE
MAXIMUM RATINGS:
(TC=25°C unless otherwise noted)
SYMBOL
Collector-Base Voltage
VCBO
Collector-Emitter Voltage
VCEO
Emitter-Base Voltage
Continuous Collector Current
Continuous Base Current
Power Dissipation
Operating and Storage Junction Temperature
Thermal Resistance
VEBO
IC
IB
PD
TJ, Tstg
Θ
JC
2N4237 2N4238
50
80
40
60
6.0
3.0
0.5
6.0
-65 to +200
29.2
2N4239
100
80
UNITS
V
V
V
A
A
W
°C
°C/W
ELECTRICAL CHARACTERISTICS:
(TC=25°C unless otherwise noted)
SYMBOL
TEST CONDITIONS
MIN
ICBO
VCB=Rated VCBO
ICEV
ICEV
ICEV
ICEV
ICEV
ICEV
ICEO
IEBO
BVCEO
BVCEO
BVCEO
VCE(SAT)
VCE(SAT)
VBE(SAT)
VBE(ON)
VCE=45V, VEB=1.5V (2N4237)
VCE=75V, VEB=1.5V (2N4238)
VCE=90V, VEB=1.5V (2N4239)
VCE=30V, VEB=1.5V, TC=150°C (2N4237)
VCE=50V, VEB=1.5V, TC=150°C (2N4238)
VCE=70V, VEB=1.5V, TC=150°C (2N4239)
VCE=Rated VCEO
VEB=6.0V
IC=100mA (2N4237)
IC=100mA (2N4238)
IC=100mA (2N4239)
IC=500mA, IB=50mA
IC=1.0A, IB=0.1A
IC=1.0A, IB=0.1A
VCE=1.0V, IC=250mA
40
60
80
MAX
100
100
100
100
1.0
1.0
1.0
700
500
UNITS
μA
μA
μA
μA
mA
mA
mA
μA
μA
V
V
V
0.3
0.6
1.5
1.0
V
V
V
V
R3 (26-March 2015)
2N4237
2N4238
2N4239
SILICON
NPN TRANSISTORS
ELECTRICAL CHARACTERISTICS - Continued:
(TC=25°C unless otherwise noted)
SYMBOL
TEST CONDITIONS
MIN
MAX
hFE
VCE=1.0V, IC=50mA
30
hFE
VCE=1.0V, IC=250mA
30
250
hFE
hFE
hfe
fT
Cob
VCE=1.0V, IC=500mA
VCE=1.0V, IC=1.0A
VCE=10V, IC=100mA, f=1.0kHz
VCE=10V, IC=100mA, f=1.0kHz
VCB=10V, IE=0, f=100kHz
30
15
30
2.0
100
UNITS
MHz
pF
TO-39 CASE - MECHANICAL OUTLINE
LEAD CODE:
1) Emitter
2) Base
3) Collector
MARKING: FULL PART NUMBER
R3 (26-March 2015)
w w w. c e n t r a l s e m i . c o m
2N4237
2N4238
2N4239
SILICON
NPN TRANSISTORS
TYPICAL ELECTRICAL CHARACTERISTICS
R3 (26-March 2015)
w w w. c e n t r a l s e m i . c o m
OUTSTANDING SUPPORT AND SUPERIOR SERVICES
PRODUCT SUPPORT
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Central’s applications engineering team is ready to discuss your design challenges. Just ask.
• Free quick ship samples (2
nd
day air)
• Special wafer diffusions
• Online technical data and parametric search
• PbSn plating options
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• Application and design sample kits
• Customer specific screening
• Custom product and package development
• Up-screening capabilities
REQUESTING PRODUCT PLATING
1.
2.
If requesting Tin/Lead plated devices, add the suffix “ TIN/LEAD” to the part number when
ordering (example: 2N2222A TIN/LEAD).
If requesting Lead (Pb) Free plated devices, add the suffix “ PBFREE” to the part number
when ordering (example: 2N2222A PBFREE).
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Corporate Headquarters & Customer Support Team
Central Semiconductor Corp.
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Hauppauge, NY 11788 USA
Main Tel: (631) 435-1110
Main Fax: (631) 435-1824
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www.centralsemi.com
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