1
Transistor
2SA1748
Silicon PNP epitaxial planer type
For high-frequency amplification
Complementary to 2SC4562
n
Features
l High transition frequency f
T
.
l Small collector output capacitance C
ob
.
l S-Mini type package, allowing downsizing of the equipment and
automatic insertion through the tape packing and the magazine
packing.
n
Absolute Maximum Ratings (Ta=25˚C)
Unit: mm
Parameter
Collector to base voltage
Collector to emitter voltage
Emitter to base voltage
Collector current
Collector power dissipation
Junction temperature
Storage temperature
1:Base
2:Emitter EIAJ:SC–70
3:Collector S–Mini Type Package
Symbol
V
CBO
V
CEO
V
EBO
I
C
P
C
T
j
T
stg
Ratings
–50
–50
–5
–50
150
150
–55 ~ +150
Unit
V
V
V
mA
mW
˚C
˚C
n
Electrical Characteristics (Ta=25˚C)
Parameter
Collector cutoff current
Collector to base voltage
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
CEO
V
CBO
V
CEO
V
EBO
h
FE
V
CE(sat)
f
T
C
ob
Conditions
V
CB
= –10V, I
E
= 0
V
CE
= –10V, I
B
= 0
I
C
= –10m A, I
E
= 0
I
C
= –1mA, I
B
= 0
I
E
= –10m A, I
C
= 0
V
CE
= –10V, I
C
= –2mA
I
C
= –10mA, I
B
= –1mA
V
CB
= –10V, I
E
= 2mA, f = 200MHz
V
CB
= –10V, I
E
= 0, f = 1MHz
min
–50
–50
–5
200
typ
– 0.1
250
1.5
max
– 0.1
–100
500
– 0.3
Unit
m A
m A
V
V
V
V
MHz
pF
*
h
FE
Rank classification
Rank Q R
h
FE
200 ~ 400 250 ~ 500
Marking Symbol ALQ ALR
Marking symbol : AL
2.1– 0.1
1.3
–
0.1
0.9
–
0.1
0.7
–
0.1
0.3
+0.1 –0
0.15
+0.1 –0.05
2.0
–
0.2
1.25– 0.1 0.4250.425
1
3
2
0.65
0.2
0.65
0 to 0.1
0.2– 0.1