2SD2114K / 2SD2144S
Transistors
Rev.B 3/4
1 2 5 10 20 50 100 200 5001000
10
20
50
100
200
500
1000
2000
5000
10000
Ta
=
25°C
Measured using
pulse current.
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : I
C
(mA)
Fig.4 DC current gain vs. collector
current ( )
3V
V
CE
=5V
1V
1 2 5 10 20 50 100 200 500 1000
10000
5000
2000
1000
500
200
100
50
20
10
V
CE
=
3V
Measured using
pulse current.
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : I
C
(mA)
Fig.5 DC current gain vs.
collector current ( )
25°C
−25°C
Ta=100°C
1
2
2000
1000
200
500
100
20
50
10
5
2 5 10 20 50 100 200 5001000
Ta
=
25°C
Measured using
pulse current.
10
25
50
I
C
/I
B
=100
COLLECTOR SATURATION VOLTAGE : VCE(sat)
(mV)
COLLECTOR CURRENT : I
C
(mA)
Fig.6 Collector-emitter saturation
voltage vs. collector current ( )
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(mV)
1
2
2000
1000
200
500
100
20
50
10
5
2 5 10 20 50 100 200 5001000
I
C
/I
B
=25
Measured using
pulse current.
COLLECTOR CURRENT : I
C (mA)
Fig.7 Collector-emitter saturation
voltage vs. collector current ( )
Ta=100°C
25°C
−25°C
BASE SATURATION VOLTAGE : V
BE(sat)
(mV)
COLLECTOR CURRENT : I
C
(mA)
Fig.8 Base-emitter saturation
voltage vs. collector current ( )
1 2 5 10 20 50 100 200 500 1000
10000
5000
2000
1000
500
200
100
50
20
10
Ta
=
25°C
Pulsed
I
C
/I
B
=10
25
50
100
1 2 5 10 20 50 100 200 5001000
10000
5000
2000
1000
500
200
100
50
20
10
BASE SATURATION VOLTAGE : V
BE(sat)
(mV)
COLLECTOR CURRENT : I
C
(mA)
Fig.9 Base-emitter saturation voltage
vs. collector current ( )
Measured using
pulse current.
l
C
/l
B
=10
25°C
100°C
Ta=−25°C
TRANSITION FREQUENCY : f
T
(MHz)
EMITTER CURRENT : I
E
(mA)
Fig.10 Gain bandwidth product vs.
emitter current
−1 −2 −5 −10 −20 −50
−100 −200 −500 −1000
10000
5000
2000
500
200
1000
100
20
50
10
Ta
=
25°C
V
CE
=
10V
Measured using
pulse current.
0.1 0.2 0.5 1 2 5 10 20 50 100
COLLECTOR OUTPUT CAPACITANCE : Cob
(pF)
COLLECTOR TO BASE VOLTAGE : V
CB
(V)
Fig.11 Collector output capacitance
vs. collector-base voltage
100
200
500
1000
10
20
50
2
5
1
Ta
=
25°C
f
=
1MHz
I
E
=
0A
0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10
ON RESISTANCE : Ron
(Ω)
BASE CURRENT : I
B (mA)
Fig.12 Output-on resistance vs.
base current
0.1
0.2
0.5
1
2
5
10
20
50
100
Ta=25°C
f=1kHz
Vi=100mV(
rms)
R
L
=1kΩ