2SA778(K), 2SA778A(K)
DC Current Transfer Ratio vs.
Collector Current
V
CE
= –3 V
75
50
Collector to Emitter Saturation Voltage vs.
Collector Current
Collector to emitter saturation voltage
V
CE (sat)
(V)
–2.0
I
C
= 10 I
B
140
DC current transfer ratio h
FE
120
–1.6
100
25
–1.2
0
80
Ta =
–25
°
C
–0.8
60
–0.4
40
–1
–2
–5
–10
–20
Collector Current I
C
(mA)
–50
0
–0.1 –0.2 –0.5 –1.0 –2
–5 –10 –20
Collector Current I
C
(mA)
–50
Collector output capacitance C
ob
(pF)
Emitter input capacitance C
ib
(pF)
Base to Emitter Saturation Voltage vs.
Collector Current
–0.9
Base to emitter saturation voltage
V
BE (sat)
(V)
I
C
= 10 I
B
–25
0
Input and Output Capacitance vs.
Voltage
12
10
8
6
C
ob
(I
E
= 0)
4
2
0
–0.5 –1.0 –2
–5 –10 –20
–50
Collector to Base Voltage V
CB
(V)
Emitter to Base Voltage V
EB
(V)
C
ib
(I
C
= 0)
f = 1 MHz
–0.8
–0.7
25
50
5
°
C
=7
–0.6
Ta
–0.5
–0.4
–0.1 –0.2 –0.5 –1.0 –2
–5 –10 –20
Collector Current I
C
(mA)
–50
5
HITACHI [ HITACHI SEMICONDUCTOR ]
