isc Silicon PNP Power Transistor
2SB857
DESCRIPTION
·Collector Current: IC= -4A
·Low Collector Saturation Voltage
: VCE(sat)= -1.0V(Max)@IC= -2A
·High Collector Power Dissipation
·Complement to Type 2SD1133
·Minimum Lot-to-Lot variations for robust device
performance and reliable operation
APPLICATIONS
·Designed for low frequency power amplifier applications.
ABSOLUTE MAXIMUM RATINGS(Ta=25℃)
SYMBOL
PARAMETER
VALUE
UNIT
VCBO
Collector-Base Voltage
-70
V
VCEO
Collector-Emitter Voltage
-50
V
VEBO
Emitter-Base Voltage
-5
V
IC
Collector Current-Continuous
-4
A
ICM
Collector Current-Peak
-8
A
PC
Total Power Dissipation
@ TC=25℃
40
W
TJ
Junction Temperature
150
℃
-45~150
℃
Tstg
Storage Temperature Range
isc website:www.iscsemi.com
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isc & iscsemi is registered trademark
isc Silicon PNP Power Transistor
2SB857
ELECTRICAL CHARACTERISTICS
TC=25℃ unless otherwise specified
SYMBOL
PARAMETER
V(BR)CEO
Collector-Emitter Breakdown Voltage
IC= -30mA ; RBE= ∞
-50
V
V(BR)CBO
Collector-Base Breakdown Voltage
IC= -1mA ; IE= 0
-70
V
V(BR)EBO
Emitter-Base Breakdown Voltage
IE= -1mA ; IC= 0
-5
V
VCE(sat)
Collector-Emitter Saturation Voltage
IC= -2A; IB= -0.2A
-1.0
V
VBE(on)
Base-Emitter On Voltage
IC= -1A ; VCE= -4V
-1.0
V
ICBO
Collector Cutoff Current
VCB= -50V ; IE= 0
-1
μA
hFE-1
DC Current Gain
IC= -1A ; VCE= -4V
60
hFE-2
DC Current Gain
IC= -0.1A ; VCE= -4V
35
Current-Gain—Bandwidth Product
IC= -0.5A ; VCE= -4V
fT
CONDITIONS
MIN
TYP.
MAX
UNIT
320
15
MHz
hFE-1 Classifications
B
C
D
60-120
100-200
160-320
NOTICE:
ISC reserves the rights to make changes of the content herein the datasheet at any time without
notification. The information contained herein is presented only as a guide for the applications of
our products.
ISC products are intended for usage in general electronic equipment. The products are not
designed for use in equipment which require specialized quality and/or reliability, or in equipment
which could have applications in hazardous environments, aerospace industry, or medical
field. Please contact us if you intend our products to be used in these special applications.
ISC makes no warranty or guarantee regarding the suitability of its products for any particular
purpose, nor does ISC assume any liability arising from the application or use of any products, and
specifically disclaims any and all liability, including without limitation special, consequential or
incidental damages.
isc website:www.iscsemi.com
2
isc & iscsemi is registered trademark
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