2SA778(K), 2SA778A(K)
Absolute Maximum Ratings
(Ta = 25°C)
Item
Collector to base voltage
Collector to emitter voltage
Emitter to base voltage
Collector current
Collector power dissipation
Junction temperature
Storage temperature
Symbol
V
CBO
V
CEO
V
EBO
I
C
P
C
Tj
Tstg
2SA778(K)
–150
–150
–5
–50
200
150
–55 to +150
2SA778A(K)
–180
–180
–5
–50
200
150
–55 to +150
Unit
V
V
V
mA
mW
°C
°C
Electrical Characteristics
(Ta = 25°C)
2SA778(K)
Item
Collector to base
breakdown voltage
Collector to emitter
breakdown voltage
Collector cutoff current
Symbol
V
(BR)CBO
V
(BR)CER
I
CBO
Min
Typ
Max
—
—
–1.0
—
–1.0
—
–1.0
2SA778A(K)
Min
Typ
Max
—
—
—
–1.0
–1.0
200
–1.0
V
V
pF
MHz
ns
µs
µs
Unit
V
V
µA
µA
µA
Test conditions
I
C
= –50
µA,
I
E
= 0
I
C
= –50
µA,
R
BE
= 30 kΩ
V
CB
= –100 V, I
E
= 0
V
CB
= –150 V, I
E
= 0
V
EB
= –5 V, I
C
= 0
V
CE
= –3 V,
I
E
= –15 mA
I
C
= –15 mA,
I
B
= –1 mA
I
C
= –15 mA,
I
B
= –1 mA
V
CB
= –10 V, I
E
= 0,
f = 1 MHz
V
CE
= –3 V,
I
C
= –15 mA
V
CC
= –10.3 V
I
C
= 10 I
B1
= –10
I
B2
= –10 mA
V
CC
= –10 V,
I
C
=–17 mA
I
B1
= –1mA,
I
B2
= –12 mA
–150 —
–150 —
—
—
—
—
—
100
–0.3
–180 —
–180 —
—
—
—
40
—
—
—
—
—
—
—
—
—
—
100
–0.3
Emitter cutoff current
I
EBO
—
30
—
—
—
—
—
—
—
DC current transfer ratio h
FE
Collector to emitter
saturation voltage
Base to emitter
saturation voltage
Collector output
capacitance
V
CE(sat)
V
BE(sat)
Cob
–0.77 –1.0
—
50
135
1.7
—
10
—
—
—
1.0
–0.77 –1.0
—
50
135
1.7
—
10
—
—
—
1.0
Gain bandwidth product f
T
Turn on time
Turn off time
Storage time
t
on
t
off
t
stg
2
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