Page 1
Po wer Transistors
B
E
C
2SD1748, 2SD1748A
Silicon NPN triple diffusion planar type Darlington
For low-freauency power amplification
Complementary to 2SB1178 and 2SB1178A
Features
■
●
High foward current transfer ratio h
●
High-speed switching
●
I type package enabling direct soldering of the radiating fin to
the printed circuit board, etc. of small electronic equipment.
Absolute Maximum Ratings (T
■
Parameter
Collector to
base voltage
Collector to
emitter voltage
2SD1748
2SD1748A
2SD1748
2SD1748A
Emitter to base voltage
Peak collector current
Collector current
Collector power
dissipation
TC=25°C
Ta=25°C
Junction temperature
Storage temperature
Electrical Characteristics (T
■
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
*
h
Rank classification
FE2
Symbol
2SD1748
2SD1748A
2SD1748
2SD1748A
2SD1748
2SD1748A
V
V
V
I
CP
I
C
P
C
T
j
T
stg
CBO
CEO
EBO
C
Symbol
I
CBO
I
CEO
I
EBO
V
CEO
h
FE1
*
h
FE2
V
BE
V
CE(sat)
f
T
t
on
t
stg
t
f
FE
=25˚C)
C
Ratings
60
80
60
80
5
4
2
15
1.3
150
–55 to +150
=25˚C)
VCB = 60V, IE = 0
VCB = 80V, IB = 0
VCE = 30V, IB = 0
VCE = 40V, IB = 0
VEB = 5V, IC = 0
IC = 30mA, IB = 0
VCE = 4V, IC = 1A
VCE = 4V, IC = 2A
VCE = 4V, IC = 2A
IC = 2A, IB = 8mA
VCE = 10V, IC = 0.5A, f = 1MHz
IC = 2A, IB1 = 8mA, IB2 = –8mA,
VCC = 50V
Unit
V
V
V
A
A
W
˚C
˚C
Conditions
Internal Connection
10.2±0.3
7.2±0.3
+0.3
–0.
10.0
7.2±0.3
7.0±0.3
3.0±0.2
0.8±0.21.0±0.2
4.6±0.4
7.0±0.3
1.1±0.1
123
4.6±0.4
min
60
80
1000
2000
1.1±0.1
0.75±0.1
2.3±0.2
213
2.0±0.2
3.0±0.2
1.0 max.
0.75±0.1
2.3±0.2
typ
20
0.5
4
1
Rank Q P
h
FE2
2000 to 5000
4000 to 10000
Unit: mm
3.5±0.2
0.85±0.1
0.4±0.1
1:Base
2:Collector
3:Emitter
I Type Package
Unit: mm
3.5±0.2
0 to 0.15
1.01.0
2.5
0.9±0.1
0.5 max.
0 to 0.15
1:Base
2:Collector
3:Emitter
I Type Package (Y)
max
Unit
1
mA
1
2
mA
2
2
mA
V
10000
2.8
2.5
V
V
MHz
µs
µs
µs
2.5±0.2
2.5±0.2
1
Page 2
Po wer Transistors 2SD1748, 2SD1748A
PC—Ta IC—V
20
)
W
(
C
15
10
5
Collector power dissipation P
0
0 16040 12080 14020 10060
Ambient temperature Ta (˚C
)
100
V
(
30
CE(sat)
10
3
TC=–25˚C
1
100˚C
0.3
0.1
0.03
0.01
Collector to emitter saturation voltage V
0.01 0.1 1 100.03 0.3 3
Collector current IC (A
(1) TC=Ta
(2) Without heat sink
(1)
(2)
V
CE(sat)—IC
(P
=1.3W)
C
)
IC/IB=250
25˚C
)
CE
5
4
)
A
(
C
3
2
Collector current I
1
0
0654132
IB=2.0mA
1.8mA
1.6mA
1.4mA
1.2mA
1.0mA
0.8mA
0.6mA
0.4mA
Collector to emitter voltage VCE (V
hFE—I
C
5
10
FE
4
10
TC=100˚C
3
10
25˚C
–25˚C
2
10
Forward current transfer ratio h
10
0.01 0.1 1 100.03 0.3 3
Collector current IC (A
TC=25˚C
0.2mA
VCE=4V
)
IC—V
10
8
)
A
(
C
6
4
Collector current I
2
0
03.20.8 2.41.6
)
Base to emitter voltage VBE (V
Cob—V
10000
)
pF
3000
(
ob
1000
300
100
30
10
3
Collector output capacitance C
1
0.1 1 10 1000.3 3 30
Collector to base voltage VCB (V
BE
TC=100˚C
25˚C
CB
–25˚C
VCE=4V
IE=0
f=1MHz
T
=25˚C
C
)
)
Area of safe operation (ASO) R
100
30
)
10
A
(
I
CP
C
3
I
C
1
300ms
0.3
0.1
Collector current I
0.03
0.01
1 10 100 10003 30 300
Non repetitive pulse
=25˚C
T
C
t=10ms
1ms
2SD1748
2SD1748A
Collector to emitter voltage VCE (V
)
3
10
)
˚C/W
2
(
10
(t)
th
10
1
Thermal resistance R
–1
10
–4
10
–3
10
2
—t
th(t)
(1) Without heat sink
(2) With a 50 × 50 × 2mm Al heat sink
(1)
(2)
–1
–2
10
Time t (s
1010
110
10
)
3
2
4
10
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