SavantIC Semiconductor
Product Specification
Silicon NPN Power Transistors
2SC4557
DESCRIPTION
·With TO-3PML package
·High voltage switchihg transistor
APPLICATIONS
·For switching regulator and general
purpose applications
PINNING
PIN
1
2
3
Base
Collector
Emitter
Fig.1 simplified outline (TO-3PML) and symbol
DESCRIPTION
Absolute maximum ratings(Ta=25 )
SYMBOL
V
CBO
V
CEO
V
EBO
I
C
I
CM
I
B
P
C
T
j
T
stg
PARAMETER
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Collector current-peak
Base current
Collector power dissipation
Junction temperature
Storage temperature
T
C
=25
CONDITIONS
Open emitter
Open base
Open collector
VALUE
900
550
7
10
20
5
80
150
-55~150
UNIT
V
V
V
A
A
A
W
SavantIC Semiconductor
Product Specification
Silicon NPN Power Transistors
2SC4557
CHARACTERISTICS
Tj=25
unless otherwise specified
PARAMETER
Collector-emitter breakdown voltage
Collector-emitter saturation voltage
Base-emitter saturation voltage
Collector cut-off current
Emitter cut-off current
DC current gain
Transition frequency
Output capacitance
CONDITIONS
I
C
=10mA; R
BE
=8
I
C
=5A;I
B
=1A
I
C
=5A;I
B
=1A
V
CB
=800V; I
E
=0
V
EB
=7V; I
C
=0
I
C
=5A ; V
CE
=4V
I
E
=-1A ; V
CE
=12V
V
CB
=10V;f=1MHz
10
6
105
MIN
550
0.5
1.2
100
100
28
MHz
pF
TYP.
MAX
UNIT
V
V
V
µA
µA
SYMBOL
V
(BR)CEO
V
CEsat
V
BEsat
I
CBO
I
EBO
h
FE
f
T
C
OB
Switching times
t
on
t
stg
t
f
Turn-on time
Storage time
Fall time
I
C
=5A;I
B1
=0.75A;
I
B2
=-1.5A;
R
L
=50B
V
CC
=250V
1.0
5.0
0.5
µs
µs
µs
2
SavantIC Semiconductor
Product Specification
Silicon NPN Power Transistors
PACKAGE OUTLINE
2SC4557
Fig.2 Outline dimensions
3
SavantIC Semiconductor
Product Specification
Silicon NPN Power Transistors
2SC4557
4
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