Transistor
2SD1478, 2SD1478A
Silicon NPN epitaxial planer type darlington
Unit: mm
For low-frequency amplification
0.40
+0.10
帽0.05
3
0.16
+0.10
-0.06
2.8
+0.2
-0.3
1
2
(0.95) (0.95)
1.9
鹵0.1
2.90
+0.20
-0.05
10擄
q
1.1
+0.2
-0.1
Parameter
Collector to
base voltage
Collector to
2SD1478
2SD1478A
2SD1478
Symbol
V
CBO
V
CEO
V
EBO
I
CP
I
C
P
C
T
j
T
stg
Ratings
30
60
25
50
5
750
500
200
150
鈥?5 ~ +150
Unit
V
1:Base
2:Emitter
3:Collector
emitter voltage 2SD1478A
Emitter to base voltage
Peak collector current
Collector current
Collector power dissipation
Junction temperature
Storage temperature
V
V
mA
mA
mW
藲C
藲C
0 to 0.1
1.1
+0.3
-0.1
s
Absolute Maximum Ratings
(Ta=25藲C)
(0.65)
EIAJ:SC鈥?9
Mini3-G1 Package
Marking symbol :
2N
(2SD1478)
2O
(2SD1478A)
Internal Connection
C
B
s
Electrical Characteristics
Parameter
Collector cutoff current
Emitter cutoff current
Collector to base
voltage
Collector to emitter
voltage
2SD1478
2SD1478A
2SD1478
2SD1478A
(Ta=25藲C)
Symbol
I
CBO
I
EBO
V
CBO
V
CEO
V
EBO
h
FE*1
V
CE(sat)
V
BE(sat)
f
T
Conditions
V
CB
= 25V, I
E
= 0
V
EB
= 4V, I
C
= 0
I
C
= 100碌A(chǔ), I
E
= 0
I
C
= 1mA, I
B
= 0
I
C
= 1mA, I
B
= 0
I
E
= 100碌A(chǔ), I
C
= 0
V
CE
= 10V, I
C
= 500mA
*2
I
C
= 500mA, I
B
= 0.5mA
*2
I
C
= 500mA, I
B
= 0.5mA
*2
V
CB
= 10V, I
E
= 鈥?0mA, f = 200MHz
200
*2
min
typ
5擄
q
Forward current transfer ratio h
FE
is designed high, which is ap-
propriate to the driver circuit of motors and printer bammer: h
FE
= 4000 to 20000.
A shunt resistor is omitted from the driver.
E
max
100
100
Unit
nA
nA
V
30
60
25
50
5
4000
20000
2.5
3.0
Emitter to base voltage
Forward current transfer ratio
Collector to emitter saturation voltage
Base to emitter voltage
Transition frequency
*1
h
FE1
MHz
Pulse measurement
Rank classification
Rank
h
FE1
Q
R
4000 ~ 10000 8000 ~ 20000
2SD1478
2SD1478A
2NQ
2OQ
2NR
2OR
Marking
Symbol
622
0.4
鹵0.2
s
Features
1.50
+0.25
-0.05
V
V
V
V
1
2
3
