RATING CHARACTERISTIC CURVES ( 2SD1781KPT )
Fig.5 Collector-emitter saturation
voltage vs. collector current (2)
Fig.6 Gain bandwidthproduct vs.
emitter current
1000
1000
IC/IB=10
Ta=25OC
VCE=5V
500
500
200
100
50
200
100
Ta=100OC
25OC
-55OC
50
20
10
20
10
5
10 20
50
200
100 500
1
2
-100 -200
-5 -10 -20 -50
1000
-1 -2
COLLECTOR CURRENT: I
C
(A)
EMITTER CURRENT: I
E
(mA)
Fig.8 Emitter input capacitance vs.
emitter-base voltage
Fig.7 Collector output capacitance
vs. collector-base voltage
100
O
O
a
T
=25 C
f=1MHZ
IE=0A
a
T
=25 C
f=1MHZ
IC=0A
200
50
100
50
20
10
20
10
5
5
0.1 0.2 0.5 1.0 2.0 5.0 10 20 50
0.1 0.2
0.5 1.0 2.0
5.0
10
COLLECTOR TO BASE VOLTAGE : VCS (V)
EMITTER TO BASE VOLTAGE : VEB (V)
CHENMKO [ CHENMKO ENTERPRISE CO. LTD. ]
