© Semiconductor Components Industries, LLC, 2007
March, 2007 − Rev. 5
1 Publication Order Number:
BC237/D
BC237B
Amplifier Transistors
NPN Silicon
Features
• Pb−Free Packages are Available*
MAXIMUM RATINGS
Rating Symbol Value Unit
Collector−Emitter Voltage V
CEO
45 Vdc
Collector−Emitter Voltage V
CES
50 Vdc
Collector−Emitter Voltage V
EBO
6.0 Vdc
Collector Current − Continuous I
C
100 mAdc
Total Power Dissipation @ T
A
= 25°C
Derate above T
A
= 25°C
P
D
350
2.8
mW
mW/°C
Total Power Dissipation @ T
A
= 25°C
Derate above T
A
= 25°C
P
D
1.0
8.0
W
mW/°C
Operating and Storage Temperature
Range
T
J
, T
stg
−55 to +150 °C
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Thermal Resistance, Junction−to−Ambient
R
q
JA
357 °C/W
Thermal Resistance, Junction−to−Case
R
q
JC
125 °C/W
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Device Package Shipping
†
ORDERING INFORMATION
BC237B TO−92 5000 Units / Bulk
BC237BG TO−92
(Pb−Free)
5000 Units / Bulk
http://onsemi.com
COLLECTOR
1
2
BASE
3
EMITTER
BC237BRL1G TO−92
(Pb−Free)
2000 / Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
1
2
3
1
2
BENT LEAD
TAPE & REEL
AMMO PACK
STRAIGHT LEAD
BULK PACK
3
TO−92
CASE 29
STYLE 17
MARKING DIAGRAM
BC23
7B
AYWW G
G
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)