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2012 ROHM Co., Ltd. All rights reserved.
2012.06 - Rev.B
Data Sheet
EMZ7 / UMZ7N
Electrical characteristic curves
Tr
1 (NPN)
0
1
10
BASE TO EMITTER VOLTAGE : V
BE
(V)
Fig.1 Grounded emitter propagation
characteristics
COLLECTOR CURRENT : I
C
(mA)
100
0.5 1.0 1.5
V
CE
=2V
1000
Ta =
1
25
°
C
25
°
C
−
40
°
C
2
5
20
50
200
500
1 2 5 10 20 50 100 200 500
COLLECTOR CURRENT : I
C
(mA)
Fig.2 DC current gain vs.
collector current
10
DC CURRENT GAIN : h
FE
1000
20
50
100
200
500
1000
Ta=
1
25°C
5
2
1
VCE=2V
25°C
−40°C
1
2
5
10
20
50
100
200
I
C
/I
B
=20
1 2 5 10 20 50 100 200 5001000
COLLECTOR SATURATION VOLTAGE : V
CE
(sat)
(mV)
Ta
=
1
25°C
500
1000
25°C
−40°C
COLLECTOR CURRENT : I
C
(mA)
Fig.3 Collector-emitter saturation voltage
vs. collector current ( Ι )
COLLECTOR SATURATION VOLTAGE : VCE
(sat)
(
V)
1
2
5
10
20
50
100
200
Ta=25°C
1 2 5 10 20 50 100 200 5001000
COLLECTOR CURRENT : I
C
(mA)
I
C
/I
B
=
50
500
1000
20
10
Fig.4 Collector-emitter saturation voltage
vs. collector current ( ΙΙ )
10
20
50
100
200
500
1000
2000
I
C
/I
B
=
20
1 2 5 10 20 50 100 200 5001000
BASE SATURATION VOLTAGE : V
BE
(sat)
(mV)
Ta=−
40
°C
5000
10000
25°C
125°C
COLLECTOR CURRENT : I
C
(mA)
Fig.5 Base-emitter saturation voltage
vs. collector current
2
1
5
10
20
50
100 200
5001000
1
2
5
10
20
50
100
200
500
1000
Ta
=
25˚C
V
CE=
2V
f
T (
MH
Z)
COLLECTOR TO BASE VOLTAGE : V
CB
(V)
Pulsed
Fig.6
Collector output capacitance
Emitter input capacitance
vs. base voltage
0.20.1 0.5 1 2 5 10 20 50 100
1
2
5
10
20
50
100
200
500
1000
Ta
=
25°C
I
E=
0A
f
=
1MHz
EMITTER INPUT CAPACITANCE : Cib (pF)
COLLECTOR OUTPUT CAPACITANCE : Cob (pF)
EMITTER TO BASE VOLTAGE : V
EB
(V)
Cib
Cob
Fig.7 Collector output capacitance
vs collector-base voltage
Emitter input capacitance
vs emitter-base voltage
