© Semiconductor Components Industries, LLC, 2013
December, 2013 − Rev. 17
1 Publication Order Number:
BD237/D
BD237G (NPN),
BD234G,BD238G (PNP)
Plastic Medium Power
Bipolar Transistors
Designed for use in 5.0 to 10 W audio amplifiers and drivers
utilizing complementary or quasi complementary circuits.
Features
• High DC Current Gain
• Epoxy Meets UL 94 V0 @ 0.125 in
• These Devices are Pb−Free and are RoHS Compliant*
MAXIMUM RATINGS
Rating Symbol Value Unit
Collector−Emitter Voltage
BD234G
DB237G, BD238G
V
CEO
45
80
Vdc
Collector−Base Voltage
BD234G
DB237G, BD238G
V
CBO
60
100
Vdc
Emitter−Base Voltage V
EBO
5.0 Vdc
Collector Current I
C
2.0 Adc
Base Current I
B
1.0 Adc
Total Device Dissipation
@ T
C
= 25_C
P
D
25
W
Operating and Storage Junction
Temperature Range
T
J
, T
stg
–55 to +150
_C
ESD − Human Body Model HBM 3B V
ESD − Machine Model MM C V
Stresses exceeding those listed in the Maximum Ratings table may damage the
device. If any of these limits are exceeded, device functionality should not be
assumed, damage may occur and reliability may be affected.
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Thermal Resistance, Junction−to−Case
R
q
JC
5.0
_C/W
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING DIAGRAM
Y = Year
WW = Work Week
BD23x = Device Code
x = 4, 7 or 8
G = Pb−Free Package
http://onsemi.com
2.0 AMPERES
POWER TRANSISTORS
25 WATTS
See detailed ordering and shipping information in the
package dimensions section on page 4 of this data
sheet.
ORDERING INFORMATION
3
BASE
1
EMITTER
COLLECTOR
2, 4
3
BASE
1
EMITTER
COLLECTOR
2, 4
PNP NPN
TO−225
CASE 77−09
STYLE 1
1
2
3
YWW
BD23xG