1
Power Transistors
2SD1748, 2SD1748A
Silicon NPN triple diffusion planar type Darlington
For low-freauency power amplification
Complementary to 2SB1178 and 2SB1178A
s Features
q
High foward current transfer ratio hFE
q
High-speed switching
q
I type package enabling direct soldering of the radiating fin to
the printed circuit board, etc. of small electronic equipment.
s 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
VCBO
VCEO
VEBO
ICP
IC
PC
Tj
Tstg
Ratings
60
80
60
80
5
4
2
15
1.3
150
–55 to +150
Unit
V
A
W
C
2SD1748
2SD1748A
2SD1748
2SD1748A
TC=25°C
Ta=25
°C
s 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
ICBO
ICEO
IEBO
VCEO
hFE1
hFE2
*
VBE
VCE(sat)
fT
ton
tstg
tf
Conditions
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
IC = 2A, IB = 8mA
VCE = 10V, IC = 0.5A, f = 1MHz
IC = 2A, IB1 = 8mA, IB2 = –8mA,
VCC = 50V
min
60
80
1000
2000
typ
20
0.5
4
1
max
1
2
10000
2.8
2.5
Unit
mA
V
MHz
s
2SD1748
2SD1748A
2SD1748
2SD1748A
2SD1748
2SD1748A
*h
FE2 Rank classification
Rank
Q
P
hFE2
2000 to 5000 4000 to 10000
Internal Connection
B
E
C
Unit: mm
1:Base
2:Collector
3:Emitter
I Type Package
Unit: mm
1:Base
2:Collector
3:Emitter
I Type Package (Y)
7.2
±0.3
7.0
±0.3
3.0
±0.2
3.5
±0.2
10.0
+0.3
–0.
0.8
±0.2
1.0
±0.2
4.6
±0.4
2
13
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
10.2
±0.3
7.2
±0.3
2.0
±0.2
0.9
±0.1
3.5
±0.2
2.5
±0.2
1.0
2.5
±0.2
3.0
±0.2
1.0
max.
123
0 to 0.15
2.5
0.5 max.
Ma
int
en
an
ce
/
Dis
co
nti
nu
ed
Maintenance/Discontinued
includes
following
four
Product
lifecy
cle
stage.
planed
maintenance
type
maintenance
type
planed
discontinued
typed
discontinued
type
Please
visit
following
URL
about
latest
information.
http://panasonic.net/sc/en