Panasonic 2SD1821A User Manual
Page 2
2SD1821A
2
SJC00425AED
This product complies with the RoHS Directive (EU 2002/95/EC).
V
CE(sat)
I
C
h
FE
I
C
f
T
I
E
0
160
40
120
80
0
240
200
160
120
80
40
Collector power dissipation
P
C
(
mW
)
Ambient temperature T
a
(°C)
0
12
10
8
2
6
4
0
120
100
80
60
40
20
T
a
= 25°C
1.8 mA
1.6 mA
1.4 mA
1.2 mA
1.0 mA
0.8 mA
0.6 mA
0.4 mA
0.2 mA
I
B
= 2.0 mA
Collector current
I
C
(
mA
)
Collector-emitter voltage V
CE
(V)
0.1
1
10
100
0.01
0.1
1
10
100
I
C
/ I
B
= 10
25°C
−
25°C
T
a
= 75°C
Collector
-emitter saturation voltage
V
CE(sat
)
(
V
)
Collector current I
C
(mA)
0.1
1
10
100
0
600
500
400
300
200
100
V
CE
= 10 V
T
a
= 75°C
25°C
−
25°C
Forward current transfer ratio
h
FE
Collector current I
C
(mA)
−
1
−
10
−
100
0
200
160
120
80
40
V
CB
= 10 V
T
a
= 25°C
Tr
ansition frequency
f
T
(
MHz
)
Emitter currentI
E
(mA)
1
10
100
0
5
4
3
2
1
Collector-base voltage V
CB
(V)
I
E
= 0
f = 1 MHz
T
a
= 25°C
Collector output capacitance (Common base, input open circuited)
C
ob
(pF
)
0
2.0
1.6
0.4
1.2
0.8
0
120
100
80
60
40
20
V
CE
= 10 V
T
a
= 75°C
−
25°C
25°C
Base-emitter voltage V
BE
(V)
Collector current
I
C
(
mA
)
C
ob
V
CB
P
C
T
a
I
C
V
CE
I
C
V
BE