Diodes MMDT3946 - Manual (Page 4)

MMDT3946
0.01
0.1
1
0.1 1 10 100 1,000
V,
C
O
LL
E
C
T
O
R
-E
MI
T
T
E
R
SA
TURA
T
IO
N
VO
L
T
AG
E
CE
(S
A
T
)
(V
)
I , COLLECTOR CURRENT (mA)
Fig. 3 Typical Collector-Emitter Saturation Voltage
vs. Collector Current (NPN-3904)
C
0.1
1
10
0.1 1 10 100 1,000
V
, BASE
-EM
IT
T
E
R
SA
T
U
R
A
T
IO
N V
O
L
T
A
G
E
BE(
SA
T
)
(V
)
I , COLLECTOR CURRENT (mA)
Fig. 4 Typical Base-Emitter Saturation Voltage
vs. Collector Current (NPN-3904)
C
1
10
1,000
100
0.1 1 10 1,000 100
h,
D
C
C
U
R
R
EN
T
G
AI
N
FE
I , COLLECTOR CURRENT (mA)
Fig. 6 Typical DC Current Gain vs.
Collector Current (PNP-3906)
C
0
5
15
10
0.1 1 10 100
C
A
P
A
C
IT
A
N
C
E (
p
F
)
V , REVERSE VOLTAGE (V)
Fig. 5 Typical Capacitance Characteristics (NPN-3904)
R
0.01
0.1
10
1
1 10 100 1,000
V,
C
O
LL
E
C
T
O
R
-E
M
IT
T
E
R
S
A
T
URA
TI
O
N
VO
L
T
AG
E
(V
)
CE
(S
A
T
)
I , COLLECTOR CURRENT (mA)
Fig. 7 Typical Collector-Emitter Saturation Voltage
vs. Collector Current (PNP-3906)
C
0.5
0.6
0.7
0.8
0.9
1.0
1 10
V
, BAS
E-
EM
I
100
T
T
E
R
SA
TURA
TI
O
N
VO
L
T
AG
E
BE
(S
A
T
)
(V
)
I , COLLECTOR CURRENT (mA)
Fig. 8 Typical Base-Emitter Saturation Voltage
vs. Collector Current (PNP-3906)
C
I
I
C
B
= 10
MMDT3946
Document number: DS30123 Rev. 11 - 2
4 of 6
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October 2008
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