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2011 ROHM Co., Ltd. All rights reserved.
2011.12 - Rev.B
Data Sheet
EMX3 / UMX3N / IMX3
Electrical characteristics curves
Fig.1 Grounded emitter propagation
characteristics
0
0.1
0.2
0.5
2
20
50
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
1
5
10
Ta
=
100°C
V
CE
=6V
COLLECTOR CURRENT : I
C
(mA)
BASE TO EMITTER VOLTAGE : V
BE
(V)
25°C
−55°C
Fig.2 Grounded emitter output
characteristics ( Ι )
0
20
40
60
80
100
0.4 0.8 1.2 1.6 2.00
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR TO EMITTER VOLTAGE : V
CE
(V)
0.05mA
0.10mA
0.15mA
0.25mA
0.30mA
0.35mA
0.20mA
Ta=25°C
I
B
=0A
0.40mA
0.50mA
0.45mA
0
0
2
8
10
4 8 12 16
4
6
20
I
B
=0A
Ta=25°C
COLLECTOR CURRENT : I
C
(mA)
COLLECTOR TO EMITTER VOLTAGE : V
CE
(V)
3μA
6μA
9μA
12μA
15μA
18μA
21μA
24μA
27μA
30μA
Fig.3 Grounded emitter output
characteristics ( ΙΙ )
0.2
20
10
0.5 1 2 5 10 20 50 100 200
50
100
200
500
V
CE
=5V
3V
1V
Ta=25°C
Fig.4 DC current gain vs.
collector current ( Ι )
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : I
C
(mA)
0.2 0.5 1 2 5 10 20 50 100 200
20
10
50
100
200
500
25°C
−55°C
Ta=100°C
V
CE
=
5V
Fig.5 DC current gain vs.
collector current ( ΙΙ )
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : I
C
(mA)
Fig. 6 Collector-emitter saturation
voltage vs. collector current
0.2
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(V)
COLLECTOR CURRENT : I
C
(mA)
0.01
0.02
0.05
0.1
0.2
0.5
0.5 1 2 5 10 20 50 100 200
I
C
/I
B
=50
20
10
Ta=25°C
Fig.7 Collector-emitter saturation
voltage vs. collector current ( Ι )
0.2
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(V)
COLLECTOR CURRENT : I
C
(mA)
0.01
0.02
0.05
0.1
0.2
0.5
0.5 1 2 5 10 20 50 100 200
I
C
/I
B
=10
Ta=100°C
25°C
−55°C
Fig.8 Collector-emitter saturation
voltage vs. collector current (ΙΙ)
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
(V)
COLLECTOR CURRENT : I
C
(mA)
0.2
0.01
0.02
0.05
0.1
0.2
0.5
0.5 1 2 5 10 20 50 100
I
C
/I
B
=50
Ta=100°C
25°C
−55°C
Fig.9 Gain bandwidth product vs.
emitter current
50
−0.5 −1 −2 −5 −10 −20 −50 −100
100
200
500
Ta=25°C
V
CE
=6V
EMITTER CURRENT : I
E
(mA)
TRANSITION FREQUENCY : f
T
(MHz)
