2SD1781K Rohm, 2SD1781K Datasheet - Page 3

• Manufacturer Part Number: 2SD1781K
• Description: Medium Power Transistor (32V/ 0.8A)
• Manufacturer: Rohm

Transistors
Fig.4 Collector-emitter saturation
1000
100
500
200
100
50
20
10
50
20
10
Fig.7 Collector output capacitance
5
5
1
COLLECTOR TO BASE VOLTAGE : V
0.1
voltage vs. collector current ( )
2
COLLECTOR CURRENT : I
I
0.2
C
/I
vs. collector-base voltage
B
=50
10
20
5
0.5 1.0 2.0
10 20
50 100 200
5.0 10
C
Ta=25°C
Ta = 25°C
(mA)
I
f = 1MHz
E
= 0A
20
500 1000
CB
(V)
50
Fig.5 Collector-emitter saturation
1000
500
200
100
50
20
10
200
100
5
50
20
10
Fig.8
1
5
voltage vs. collector current ( )
0.1
2
EMITTER TO BASE VOLTAGE : V
COLLECTOR CURRENT : I
Emitter input capacitance vs.
emitter-base voltage
5
0.2
10 20
Ta=100°C
0.5
−55°C
25°C
50 100 200
1.0
2.0
C
(mA)
l
C
Ta = 25°C
/l
f = 1MHz
I
C
B
= 0A
=10
500 1000
5.0
EB
(V)
10
1000
500
200
100
50
20
10
Fig.6 Gain bandwidth product vs.
−1
−2
EMITTER CURRENT : I
emitter current
−5 −10 −20
Rev.A
2SD1781K
−50 −100 −200
E
(mA)
Ta = 25°C
V
CE
= 5V
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