1
Transistor
2SD1244
Silicon NPN epitaxial planer type
For low-frequency power amplification
n
Features
l Low collector to emitter saturation voltage V
CE(sat)
.
l Satisfactory operation performances at high efficiency with the
low-voltage power supply.
l M type package allowing easy automatic and manual insertion as
well as stand-alone fixing to the printed circuit board.
n
Absolute Maximum Ratings (Ta=25˚C)
Unit: mm
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
1:Base
2:Collector EIAJ:SC–71
3:Emitter M Type Mold Package
6.9– 0.1
0.55– 0.1 0.45– 0.05
1.0
–
0.1
1.0
2.5– 0.1
1.0
1.5
1.5 R0.9
R0.9
R0.7
0.4
0.85
3.5
–
0.1
2.0
–
0.2
2.4
–
0.2
1.25
–
0.05
4.1
–
0.2
4
.5
–
0.1
2.5 2.5
123
Symbol
V
CBO
V
CEO
V
EBO
I
CP
I
C
P
C
*
T
j
T
stg
Ratings
40
20
7
8
5
1
150
–55 ~ +150
Unit
V
V
V
A
A
W
˚C
˚C
n
Electrical Characteristics (Ta=25˚C)
Parameter
Collector cutoff current
Emitter cutoff current
Collector to emitter voltage
Emitter to base voltage
Forward current transfer ratio
Collector to emitter saturation voltage
Transition frequency
Collector output capacitance
Symbol
I
CBO
I
EBO
V
CEO
V
EBO
h
FE1
*1
h
FE2
V
CE(sat)
f
T
C
ob
Conditions
V
CB
= 10V, I
E
= 0
V
EB
= 7V, I
C
= 0
I
C
= 1mA, I
B
= 0
I
E
= 10m A, I
C
= 0
V
CE
= 2V, I
C
= 0.5A
*2
V
CE
= 2V, I
C
= 2A
*2
I
C
= 3A, I
B
= 0.1A
*2
V
CB
= 6V, I
E
= –50mA, f = 200MHz
V
CB
= 20V, I
E
= 0, f = 1MHz
min
20
7
230
150
typ
150
max
0.1
0.1
600
1
50
Unit
m A
m A
V
V
V
MHz
pF
*1
h
FE1
Rank classification
Rank Q R
h
FE1
230 ~ 380 340 ~ 600
*2
Pulse measurement
*
Printed circuit board: Copper foil area of 1cm
2
or more, and the board
thickness of 1.7mm for the collector portion