
1
Power Transistors
2SD1743, 2SD1743A
Silicon NPN triple diffusion planar type
For power amplification
Complementary to 2SB1173 and 2SB1173A
I
Features
G
High forward current transfer ratio h
FE
which has satisfactory linearity
G
Low collector to emitter saturation voltage V
CE(sat)
G
I type package enabling direct soldering of the radiating fin to
the printed circuit board, etc. of small electronic equipment.
I
Absolute Maximum Ratings
(T
C
=25C)
Parameter
Collector to
base voltage
Collector to
emitter voltage
Emitter to base voltage
Peak collector current
Collector current
Collector power
dissipation
Junction temperature
Storage temperature
Symbol
V
CBO
V
CEO
V
EBO
I
CP
I
C
P
C
T
j
T
stg
Ratings
60
80
60
80
5
8
4
15
1.3
150
–55 to +150
Unit
V
V
V
A
A
W
C
C
2SD1743
2SD1743A
2SD1743
2SD1743A
T
C
=25
°
C
Ta=25
°
C
I
Electrical Characteristics
(T
C
=25C)
Parameter
Collector cutoff
current
Collector cutoff
current
Emitter cutoff current
Collector to emitter
voltage
Forward current transfer ratio
Base to emitter voltage
Collector to emitter saturation voltage
Transition frequency
Turn-on time
Storage time
Fall time
Symbol
I
CES
I
CEO
I
EBO
V
CEO
h
FE1*
h
FE2
V
BE
V
CE(sat)
f
T
t
on
t
stg
t
f
Conditions
V
CE
= 60V, V
BE
= 0
V
CE
= 80V, V
BE
= 0
V
CE
= 30V, I
B
= 0
V
CE
= 60V, I
B
= 0
V
EB
= 5V, I
C
= 0
I
C
= 30mA, I
B
= 0
V
CE
= 4V, I
C
= 1A
V
CE
= 4V, I
C
= 3A
V
CE
= 4V, I
C
= 3A
I
C
= 4A, I
B
= 0.4A
V
CE
= 10V, I
C
= 0.5A, f = 10MHz
I
C
= 4A, I
B1
= 0.4A, I
B2
= – 0.4A,
V
CC
= 50V
min
60
80
70
15
typ
25
0.4
1.2
0.5
max
400
400
700
700
1
250
2
1.5
Unit
μ
A
μ
A
mA
V
V
V
MHz
μ
s
μ
s
μ
s
2SD1743
2SD1743A
2SD1743
2SD1743A
2SD1743
2SD1743A
*
h
FE1
Rank classification
Rank
Q
P
h
FE1
70 to 150
120 to 250
Unit: mm
1:Base
2:Collector
3:Emitter
I Type Package
Unit: mm
1:Base
2:Collector
3:Emitter
I Type Package (Y)
7
±
0
7.0
±
0.3
3.0
±
0.2
3.5
±
0.2
1
+
–
0
±
0
1
±
0
4.6
±
0.4
2
1
3
1.1
±
0.1
0.75
±
0.1
2.3
±
0.2
0.85
±
0.1
0.4
±
0.1
7.0
±
0.3
0.75
±
0.1
2.3
±
0.2
4.6
±
0.4
1.1
±
0.1
1
±
0
7
±
0
2.0
±
0.2
0.9
±
0.1
0 to 0.15
3.5
±
0.2
2
±
0
1
1
2
±
0
3.0
±
0.2
1
1
2
3
0 to 0.15
2.5
0.5 max.